TestPrep USA

Our tutors

TestPrep USA is taught by the TestPrep Group's faculty: 188 tutors. Each profile shows what they teach and, where published, the year they began teaching, their degrees and the TestPrep question banks they wrote. Tutors are matched to the exam you are preparing for on the free intro call.

Choose a program, then a subject. Department heads appear first, followed by tutors in alphabetical order.

188 tutors

  • Arsalan Farajnezhad

    Head of Mathematics / Senior International Examinations Instructor & Lead Question Bank Author

    Teaching areas

    GMAT Quantitative Reasoning · GMAT Data Insights · GRE Quantitative Reasoning · Digital SAT Math · ACT Math · SSAT Math

    Teaching since 2014

    View full profile: Arsalan Farajnezhad

    Education

    • M.Sc. (Master’s degree): Sahand University of Technology — Mathematics
    • B.Sc. (Bachelor’s degree): Urmia University of Technology — Mathematics

    About

    Arsalan Farajnezhad is a senior mathematician who has specialized in the quantitative areas of national and international admissions examinations since 2014. As Head of Mathematics at TestPrep, he develops students’ analytical thinking and efficient problem-solving skills across a broad range of programs, from secondary school to postgraduate admission.

    Teaching areas and specialisms

    • GMAT and GRE Quant: quantitative reasoning for MBA and postgraduate applicants in the current GMAT and shorter GRE formats, with data interpretation mentoring for GMAT Data Insights.
    • Digital SAT Math: adaptive test strategies and use of the integrated Desmos graphing calculator.
    • ACT and SSAT Math: quantitative problem solving and pacing, including preparation for the current ACT format.

    Publications and digital question banks

    Arsalan Farajnezhad brings his theoretical mathematics background and examination experience to TestPrep as lead author of the mathematics content in the TestPrep QBank series. These original resources follow the examinations’ official content frameworks and are updated annually to support students working towards high scores.

    TestPrep question banks authored

  • Ersen Akıncı

    Head of AP Mathematics / Senior AP Calculus & Statistics Instructor

    Teaching areas

    AP Calculus AB and BC · AP Statistics

    Teaching since 2013

    View full profile: Ersen Akıncı

    Education

    • B.Sc. (Bachelor’s degree): Hacettepe Üniversitesi — Mathematics
    • M.Sc. (Master’s degree): Orta Doğu Teknik Üniversitesi (ODTÜ) — Mathematics

    About

    Ersen Akıncı has served as head of AP Mathematics since 2013. He teaches AP Calculus AB/BC and AP Statistics, focusing on free-response question (FRQ) methods, graphing calculator use and a thorough conceptual understanding of the Advanced Placement curriculum.

    Teaching areas and specialisms

    • AP Calculus AB and BC
    • AP Statistics
    • Free-response question methods
    • Graphing calculator use

    TestPrep question banks authored

    • AP Calculus AB
    • AP Calculus BC
    • AP Statistics
  • Kamran Shoorangiz

    Head of English / Senior Verbal Instructor & Question Bank Author

    Teaching areas

    GMAT Verbal Reasoning · GRE Verbal Reasoning · GRE Analytical Writing · SAT Reading and Writing · ACT English · ACT Reading

    Teaching since 2013

    View full profile: Kamran Shoorangiz

    Education

    • B.A. (Bachelor’s degree): University of Tehran — English Language and Literature
    • M.A. (Master’s degree): University of Toronto — Applied Linguistics

    About

    Kamran Shoorangiz is a senior linguist who has specialized in the verbal areas of leading international academic and postgraduate admissions examinations since 2013. As Head of the English Department at TestPrep, he brings extensive expertise in critical reading, advanced text analysis, rhetorical synthesis and analytical writing strategies.

    Teaching areas and specialisms

    • Critical reading
    • Advanced text analysis
    • Rhetorical synthesis
    • GRE Analytical Writing strategies

    TestPrep question banks authored

  • Nasim Hosseinzadeh

    Head of English Proficiency / Senior IELTS, PTE & TOEFL Instructor

    Teaching areas

    IELTS · PTE · TOEFL iBT

    Teaching since 2012

    View full profile: Nasim Hosseinzadeh

    Education

    • B.A. (Bachelor’s degree): Allameh Tabataba'i University — English Translation
    • M.A. (Master’s degree): University of Nottingham — TESOL

    About

    Nasim Hosseinzadeh has developed extensive expertise in international English proficiency examinations since 2012. As Head of English Proficiency at TestPrep, Hosseinzadeh designs preparation programs that follow international standards, focusing on academic writing conventions, advanced listening, reading analysis and the assessment criteria for fluent speaking.

    Teaching areas and specialisms

    • Academic writing conventions
    • Advanced listening and reading analysis
    • Assessment criteria for fluent speaking

    TestPrep question banks authored

  • Ravi Narsinghani

    Head of IB, IGCSE & A Level Mathematics / Senior Instructor

    Teaching areas

    IB Mathematics · A Level Mathematics · IGCSE Mathematics

    Teaching since 2012

    View full profile: Ravi Narsinghani

    Education

    • B.Sc. (Bachelor’s degree): University of Manchester — Mathematics
    • M.Sc. (Master’s degree): University of Edinburgh — Mathematics

    About

    Ravi Narsinghani has specialized in IB, IGCSE and A Level mathematics since 2012. As head of these mathematics programs at TestPrep, he focuses on IB Internal Assessment (IA) processes, analytical problem solving and advanced examination techniques.

    Teaching areas and specialisms

    • IB Internal Assessment (IA) processes
    • Analytical problem solving
    • IB, IGCSE and A Level examination techniques

    TestPrep question banks authored

    • IB Mathematics
    • A-Level Mathematics
    • IGCSE Mathematics
  • Sezai Pekdemir

    Head of Biology / Senior IB, AP, IMAT, A-Level & IGCSE Biology Instructor

    Teaching areas

    IB Biology · AP Biology · IMAT Biology · A-Level Biology · IGCSE Biology

    Teaching since 2018

    View full profile: Sezai Pekdemir

    Education

    • B.Sc. (Bachelor’s degree): Eskişehir Osmangazi Üniversitesi — Biology
    • M.Sc. (Master’s degree): Marmara Üniversitesi — Educational Administration and Supervision

    About

    Sezai Pekdemir has taught biology and science and led departments at international schools since 2018. He previously served as Head of Biology at International School Frankfurt in Germany and currently teaches IBDP Biology and Environmental Systems and Societies (ESS) at GEMS World Academy in Dubai. As Head of Biology at TestPrep, he draws on the IB, AP, IMAT, A-Level and IGCSE curricula to help students develop analytical thinking, experimental data interpretation and academic reporting skills.

    Teaching areas and specialisms

    • IB Biology (IBDP curriculum, Internal Assessment [IA] reports and data analysis); AP Biology (cell biology, genetics, evolution and free-response [FRQ] strategies); IMAT Biology (preparation for medicine and health sciences applicants); A-Level and IGCSE Biology (Cambridge/Edexcel curriculum alignment and exam techniques)

    TestPrep question banks authored

    • IB Biology
    • AP Biology
    • IMAT Biology
    • A-Level Biology
    • IGCSE Biology
  • Somayeh Borji

    Head of English Proficiency / Senior IELTS, PTE & TOEFL Instructor

    Teaching areas

    IELTS · PTE · TOEFL iBT

    Teaching since 2013

    View full profile: Somayeh Borji

    Education

    • B.A. (Bachelor’s degree): University of Tehran — English Language and Literature
    • M.A. (Master’s degree): University of Auckland — Applied Linguistics

    About

    Somayeh Borji has worked as a senior instructor for IELTS, PTE and TOEFL since 2013, including both Academic and General Training preparation for IELTS. Combining applied linguistics theory with practical test-taking techniques, Borji helps candidates bring their language skills together as they work towards their target scores.

    Teaching areas and specialisms

    • IELTS Academic and General Training preparation
    • Applied linguistics and practical test-taking techniques
    • Developing language skills together

    TestPrep question banks authored

  • Adam Wilson

    Senior IB English B Instructor / TestPrep QBank Author

    Teaching areas

    IB English B · Academic Language Acquisition and Textual Analysis

    Teaching since 2015

    View full profile: Adam Wilson

    Education

    • B.A. (Bachelor’s degree): University of Otago — English
    • M.A. (Master’s degree): University of Auckland — TESOL

    About

    Adam Wilson has worked as a senior instructor in IB English B, the International Baccalaureate’s language acquisition course, since 2015. Wilson helps students develop their academic English while providing focused preparation for the IB’s internal assessment and external examination criteria.

    Teaching areas and specialisms

    • Language acquisition in IB English B
    • Academic English and textual analysis
    • IB internal assessment and external examination criteria

    TestPrep question banks authored

    • IB English B
  • Ahmet Çelik

    IB Economics Tutor

    Teaching areas

    IB

  • Ahmet Yılmaz

    Senior SAT & ACT Mathematics Instructor / TestPrep QBank Author

    Teaching areas

    Digital SAT Math · ACT Math

    Teaching since 2015

    View full profile: Ahmet Yılmaz

    Education

    • B.Sc. (Bachelor’s degree): Yıldız Teknik Üniversitesi — Mathematics
    • M.Sc. (Master’s degree): Boğaziçi Üniversitesi — Mathematics

    About

    Ahmet Yılmaz has specialized in SAT and ACT mathematics preparation since 2015. He focuses on helping students understand the Digital SAT’s adaptive format and use its integrated Desmos graphing calculator effectively, alongside strategic pacing and time management for both exams.

    Teaching areas and specialisms

    • Digital SAT adaptive test strategies
    • Desmos use in the Digital SAT
    • SAT and ACT pacing and time management

    TestPrep question banks authored

  • Akira Tanaka

    Senior AP Biology Instructor / TestPrep QBank Author

    Teaching areas

    AP Biology

    Teaching since 2014

    View full profile: Akira Tanaka

    Education

    • B.Sc. (Bachelor’s degree): University of Tsukuba — Biology
    • M.Sc. (Master’s degree): University of Tokyo — Biology

    About

    Akira Tanaka has coached students for AP Biology since 2014. His analytical lessons cover the laboratory-based experimental questions emphasized in the College Board exam, interpretation of data in complex graphs and free-response questions (FRQs).

    Teaching areas and specialisms

    • AP FRQ approaches, graph analysis and experimental modeling

    TestPrep question banks authored

    • AP Biology
  • Ali Demirci

    Senior GMAT & GRE Verbal Instructor / TestPrep QBank Author

    Teaching areas

    GMAT Verbal Reasoning · GRE Verbal Reasoning · GRE Analytical Writing

    Teaching since 2014

    View full profile: Ali Demirci

    Education

    • B.A. (Bachelor’s degree): Hacettepe Üniversitesi — English Language Teaching
    • M.A. (Master’s degree): Orta Doğu Teknik Üniversitesi (ODTÜ) — Applied Linguistics

    About

    Ali Demirci has mentored candidates in the verbal reasoning sections of the GMAT and GRE since 2014. He uses original methods to help students analyze academic texts, structure complex arguments and meet advanced standards in GRE Analytical Writing.

    Teaching areas and specialisms

    • Academic text analysis
    • Structuring complex arguments
    • GRE Analytical Writing

    TestPrep question banks authored

  • Ali Ertan

    AP Physics Tutor

    Teaching areas

    AP Physics

    Teaching since 2015

    View full profile: Ali Ertan

    About

    Teaches AP Physics 1, AP Physics 2 and AP Physics C one-to-one.

  • Amara Okafor

    English Teacher / Senior UCAT Verbal Reasoning & Situational Judgement Instructor

    Teaching areas

    UCAT Verbal Reasoning · UCAT Situational Judgement Strategies

    Teaching since 2015

    View full profile: Amara Okafor

    Education

    • B.A. (Bachelor’s degree): University of Lagos — English
    • M.A. (Master’s degree): University of Toronto — English Language Teaching

    About

    Amara Okafor has taught UCAT verbal reasoning and situational judgement since 2015. Okafor’s teaching focuses on scanning passages efficiently under time pressure, identifying main ideas and the author’s purpose, and selecting responses that align with professional standards of medical conduct.

    Teaching areas and specialisms

    • Efficient passage scanning under time pressure
    • Identifying main ideas and the author’s purpose
    • Analysing responses against professional standards of medical conduct

    TestPrep question banks authored

    • UCAT Verbal Reasoning
    • UCAT Situational Judgement
  • Anders Bergström

    Senior AP Calculus AB & BC Instructor / TestPrep QBank Author

    Teaching areas

    AP Calculus AB and BC

    Teaching since 2014

    View full profile: Anders Bergström

    Education

    • B.Sc. (Bachelor’s degree): Uppsala University — Mathematics
    • M.Sc. (Master’s degree): Lund University — Mathematics

    About

    Anders Bergström has taught AP Calculus AB and BC since 2014. He specializes in limits, derivatives, integrals and the infinite series covered in BC. His teaching focuses on the analytical steps in free-response questions where students often lose marks, as well as interpreting graph-based problems.

    Teaching areas and specialisms

    • Limits, derivatives and integrals
    • Series, polar and parametric equations in AP Calculus BC
    • Free-response questions and graph interpretation

    TestPrep question banks authored

    • AP Calculus AB
    • AP Calculus BC
  • Andrei Popescu

    Senior AP Calculus AB & BC Instructor / TestPrep QBank Author

    Teaching areas

    AP Calculus AB and BC

    Teaching since 2016

    View full profile: Andrei Popescu

    Education

    • B.Sc. (Bachelor’s degree): University of Bucharest — Mathematics
    • M.Sc. (Master’s degree): University of Warwick — Mathematics

    About

    Andrei Popescu has led AP Calculus AB and BC preparation since 2016. Focusing on the relationship between limits and continuity, differentiation rules and applications of definite integrals, he helps students translate analytical understanding into examination practice.

    Teaching areas and specialisms

    • Limits and continuity
    • Differentiation and integration
    • Series in AP Calculus BC

    TestPrep question banks authored

    • AP Calculus AB
    • AP Calculus BC
  • Anna Thompson

    Senior IGCSE & A-Level English Instructor / TestPrep QBank Author

    Teaching areas

    IGCSE English Language · IGCSE English Literature · A-Level English Literature · A-Level English Language

    Teaching since 2013

    View full profile: Anna Thompson

    Education

    • B.A. (Bachelor’s degree): University of Leeds — English Literature
    • M.A. (Master’s degree): University of York — English Literature

    About

    Anna Thompson has worked as a senior instructor in IGCSE English Language and Literature and A-Level English Literature and Language since 2013, within British and international school curricula. Thompson has extensive expertise in literary criticism, essay analysis and Cambridge and Edexcel assessment standards.

    Teaching areas and specialisms

    • Literary criticism
    • Essay analysis
    • Cambridge and Edexcel assessment standards

    TestPrep question banks authored

    • IGCSE English
    • A-Level English
  • Aoife Brennan

    Senior A-Level Biology & IGCSE Biology Instructor / TestPrep QBank Author

    Teaching areas

    A-Level Biology · IGCSE Biology

    Teaching since 2015

    View full profile: Aoife Brennan

    Education

    • B.Sc. (Bachelor’s degree): University College Cork — Biology
    • M.Sc. (Master’s degree): University of Edinburgh — Biology

    About

    Aoife Brennan has worked in A-Level and IGCSE Biology preparation since 2015. She focuses on cell structure, population genetics, global ecological balances and approaches to questions that reflect the expectations of UK examination boards, including Cambridge, Edexcel and Oxford AQA.

    Teaching areas and specialisms

    • A-Level Biology and IGCSE Biology test structure

    TestPrep question banks authored

    • A-Level Biology
    • IGCSE Biology
  • Arda Karagöz

    IB Computer Science Tutor

    Teaching areas

    IB

  • Arjun Mehta

    Senior GMAT & GRE Quant / Data Insights Instructor & Question Bank Author

    Teaching areas

    GMAT Quantitative Reasoning · GMAT Data Insights · GRE Quantitative Reasoning

    Teaching since 2017

    View full profile: Arjun Mehta

    Education

    • B.Sc. (Bachelor’s degree): University of Delhi — Mathematics
    • M.Sc. (Master’s degree): University of Warwick — Mathematics

    About

    Arjun Mehta has taught quantitative exam preparation since 2017. His current subjects are GMAT Quant, GRE Quant and GMAT Data Insights. Working with candidates aiming for competitive scores, he focuses on error analysis and analytical reasoning in GMAT Data Sufficiency and GRE Quantitative Comparison questions.

    Teaching areas and specialisms

    • GMAT Quant: Problem Solving
    • GRE Quant: Quantitative Comparison and Problem Solving
    • GMAT Data Insights: Data Sufficiency, Multi-Source Reasoning and Table Analysis

    TestPrep question banks authored

  • Aslı Bingöl

    IB Business Management Tutor

    Teaching areas

    IB

  • Ayça Polat

    IB Chemistry Tutor

    Teaching areas

    IB

  • Aylin Şimşek

    IB Psychology Tutor

    Teaching areas

    IB

  • Ayşe Erdem

    Senior IMAT Biology Instructor / TestPrep QBank Author

    Teaching areas

    IMAT Biology

    Teaching since 2016

    View full profile: Ayşe Erdem

    Education

    • B.Sc. (Bachelor’s degree): Ege Üniversitesi — Biology
    • M.Sc. (Master’s degree): İstanbul Üniversitesi — Biology

    About

    Ayşe Erdem has specialized in IMAT Biology since 2016. In programs for prospective medical students, she develops test approaches that help students manage their time when working on classical and molecular genetic variation, laws of inheritance, organ-system mechanisms and human physiology.

    Teaching areas and specialisms

    • IMAT Biology, molecular foundations and human physiology

    TestPrep question banks authored

    • IMAT Biology
  • Ayşe Kaya

    IB Mathematics Tutor

    Teaching areas

    IB

  • Ayşegül Kaya

    IB Turkish A Tutor

    Teaching areas

    IB

  • Aysun Gül

    IB Revision Tutor

    Teaching areas

    IB

  • Banu Aksoy

    IB Theory of Knowledge (TOK) Tutor

    Teaching areas

    IB

  • Banu Tekin

    IGCSE Chemistry Tutor

    Teaching areas

    IGCSE Chemistry

    Teaching since 2016

    View full profile: Banu Tekin

    About

    IGCSE Chemistry specialist — experienced in Alternative to Practical preparation.

  • Beatriz Almeida

    Senior GMAT & GRE Quant / Data Insights Instructor & Question Bank Author

    Teaching areas

    GMAT Quantitative Reasoning · GMAT Data Insights · GRE Quantitative Reasoning

    Teaching since 2016

    View full profile: Beatriz Almeida

    Education

    • B.Sc. (Bachelor’s degree): University of São Paulo — Statistics
    • M.Sc. (Master’s degree): University of British Columbia — Statistics

    About

    Beatriz Almeida has taught quantitative exam preparation since 2016. Her current teaching covers GMAT Quant, GRE Quant and GMAT Data Insights. Drawing on her academic background in statistical data analysis and probability, she develops clear conceptual explanations and efficient methods for challenging quantitative reasoning problems.

    Teaching areas and specialisms

    • GMAT Quant: Problem Solving
    • GRE Quant: Quantitative Comparison, statistics and probability
    • GMAT Data Insights: Data Sufficiency, Two-Part Analysis, Table Analysis and Multi-Source Reasoning

    TestPrep question banks authored

  • Begüm Yiğit

    IB Chemistry Tutor

    Teaching areas

    IB

  • Berat Korkut

    IB Philosophy Tutor

    Teaching areas

    IB

  • Berk Sağlam

    Senior GMAT & GRE Quant Instructor / TestPrep QBank Author

    Teaching areas

    GMAT Quantitative Reasoning · GRE Quantitative Reasoning · GMAT Data Insights: Data Sufficiency

    Teaching since 2014

    View full profile: Berk Sağlam

    Education

    • B.Sc. (Bachelor’s degree): TOBB Ekonomi ve Teknoloji Üniversitesi — Mathematics
    • M.Sc. (Master’s degree): Boğaziçi Üniversitesi — Mathematics

    About

    Berk Sağlam has mentored GMAT and GRE quantitative candidates applying to MBA and postgraduate programs since 2014. His teaching develops advanced reasoning, speed and accuracy in Quantitative Reasoning, as well as Data Sufficiency within the GMAT Data Insights section.

    Teaching areas and specialisms

    • GMAT and GRE quantitative reasoning
    • Data Sufficiency within GMAT Data Insights
    • Speed, accuracy and logical reasoning

    TestPrep question banks authored

  • Berk Şahin

    IB Mathematics Tutor

    Teaching areas

    IB

  • Berk Yavuz

    IB Psychology Tutor

    Teaching areas

    IB

  • Berkay Tunç

    IB Internal Assessment Tutor

    Teaching areas

    IB

  • Beyza Çağlar

    IB History Tutor

    Teaching areas

    IB

  • Bora Çiftçi

    IB Global Politics Tutor

    Teaching areas

    IB

  • Burak Kara

    Senior AP Calculus Instructor / TestPrep QBank Author

    Teaching areas

    AP Calculus AB and BC

    Teaching since 2017

    View full profile: Burak Kara

    Education

    • B.Sc. (Bachelor’s degree): Yıldız Teknik Üniversitesi — Mathematics
    • M.Sc. (Master’s degree): İstanbul Teknik Üniversitesi (İTÜ) — Mathematics

    About

    Burak Kara has prepared students for AP Calculus AB and BC since 2017. His teaching develops analytical thinking through limits, derivatives, integrals and differential equations, together with the infinite series covered in AP Calculus BC.

    Teaching areas and specialisms

    • Limits, derivatives and integrals
    • Differential equations
    • Infinite series in AP Calculus BC

    TestPrep question banks authored

    • AP Calculus AB
    • AP Calculus BC
  • Burak Şen

    IB Economics Tutor

    Teaching areas

    IB

  • Burcu Kılıç

    Senior GMAT & GRE Verbal Instructor / TestPrep QBank Author

    Teaching areas

    GMAT Verbal Reasoning · GRE Verbal Reasoning · GRE Analytical Writing

    Teaching since 2015

    View full profile: Burcu Kılıç

    Education

    • B.A. (Bachelor’s degree): İstanbul Üniversitesi — English Language and Literature
    • M.A. (Master’s degree): Boğaziçi Üniversitesi — English Language and Literature

    About

    Burcu Kılıç has guided candidates with ambitious academic goals through GMAT Verbal, GRE Verbal and GRE Analytical Writing preparation since 2015. She specializes in efficient skimming techniques for literary and socioeconomic texts, identifying misleading answer choices and mapping logical arguments.

    Teaching areas and specialisms

    • Efficient skimming of literary and socioeconomic texts
    • Analysing misleading answer choices
    • Mapping logical arguments

    TestPrep question banks authored

  • Buse Yörük

    IB Geography Tutor

    Teaching areas

    IB

  • Çağrı Yenilmez

    IB Exam Camp Tutor

    Teaching areas

    IB

  • Callum Fraser

    Senior A-Level Biology & IGCSE Biology Instructor / TestPrep QBank Author

    Teaching areas

    A-Level Biology · IGCSE Biology

    Teaching since 2015

    View full profile: Callum Fraser

    Education

    • B.Sc. (Bachelor’s degree): University of Aberdeen — Biology
    • M.Sc. (Master’s degree): University of Edinburgh — Biology

    About

    Callum Fraser has mentored students preparing for international Biology examinations since 2015. His approach focuses on technical marking criteria, structuring extended responses and interpreting laboratory-based material.

    Teaching areas and specialisms

    • A-Level and IGCSE Biology exam techniques and extended-response strategies

    TestPrep question banks authored

    • A-Level Biology
    • IGCSE Biology
  • Can Öztürk

    Senior IELTS, TOEFL & PTE Instructor / TestPrep QBank Author

    Teaching areas

    IELTS · TOEFL · PTE

    Teaching since 2014

    View full profile: Can Öztürk

    Education

    • B.A. (Bachelor’s degree): Hacettepe Üniversitesi — English Language Teaching
    • M.A. (Master’s degree): Boğaziçi Üniversitesi — English Language Teaching

    About

    Can Öztürk has prepared students for IELTS, TOEFL and PTE since 2014, supporting their applications to schools abroad and their preparation for English proficiency exemptions. Öztürk guides students in comparing examination formats and identifying the test that best matches their goals.

    Teaching areas and specialisms

    • IELTS, TOEFL and PTE preparation
    • Comparing examination formats
    • Selecting an examination to match the student’s goals

    TestPrep question banks authored

  • Can Tuncer

    A-Level Physics Tutor

    Teaching areas

    A-Level Physics

    Teaching since 2015

    View full profile: Can Tuncer

    About

    A-Level Physics tutor, teaching since 2015.

  • Caner Tunç

    Senior IB Biology & AP Biology Instructor / TestPrep QBank Author

    Teaching areas

    IB Biology · AP Biology

    Teaching since 2015

    View full profile: Caner Tunç

    Education

    • B.Sc. (Bachelor’s degree): Orta Doğu Teknik Üniversitesi (ODTÜ) — Biology
    • M.Sc. (Master’s degree): Sabancı Üniversitesi — Biology

    About

    Caner Tunç has taught IB Biology and AP Biology since 2015 to secondary school students pursuing international university study. He structures his lessons around experimental methodology questions, statistical interpretation of laboratory data sets and analysis of complex graphs.

    Teaching areas and specialisms

    • Laboratory analysis question types and AP/IB Biology data interpretation

    TestPrep question banks authored

    • IB Biology
    • AP Biology
  • Cansu Yavuz

    IB Global Politics Tutor

    Teaching areas

    IB

  • Cem Aksoy

    IB Physics Tutor

    Teaching areas

    IB

  • Cem Yıldırım

    A-Level Economics Tutor

    Teaching areas

    A-Level Economics

    Teaching since 2016

    View full profile: Cem Yıldırım

    About

    A-Level Economics specialist — experienced in essay technique and data-response analysis.

  • Cenk Avcı

    IB Visual Arts Tutor

    Teaching areas

    IB

  • Ceren Çoban

    IB Business Management Tutor

    Teaching areas

    IB

  • Ceren Yalçın

    Senior SAT & ACT Verbal Instructor / TestPrep QBank Author

    Teaching areas

    SAT Reading and Writing · ACT English · ACT Reading

    Teaching since 2015

    View full profile: Ceren Yalçın

    Education

    • B.A. (Bachelor’s degree): Hacettepe Üniversitesi — English Language Teaching
    • M.A. (Master’s degree): Boğaziçi Üniversitesi — English Language Teaching

    About

    Ceren Yalçın has taught the verbal areas of the SAT and ACT since 2015, with her current SAT teaching focused on Digital SAT Reading and Writing. Her dynamic approach centers on verbal reasoning, analysis of transitions within texts and targeted question-solving techniques for grammatical structures.

    Teaching areas and specialisms

    • Verbal reasoning
    • Transitions within texts
    • Question-solving techniques for grammatical structures

    TestPrep question banks authored

  • Damla Görmez

    IB Visual Arts Tutor

    Teaching areas

    IB

  • Daniel Cohen

    Senior SAT & ACT Mathematics Instructor

    Teaching areas

    Digital SAT Math · ACT Math

    Teaching since 2015

    View full profile: Daniel Cohen

    Education

    • B.Sc. (Bachelor’s degree): University of Toronto — Mathematics
    • M.Sc. (Master’s degree): University of British Columbia — Mathematics

    About

    Daniel Cohen has guided international students through SAT and ACT mathematics preparation for undergraduate admission since 2015. He specializes in strategies for the Digital SAT’s adaptive format, integrated Desmos practice and detailed analysis of mathematical question types.

    Teaching areas and specialisms

    • Digital SAT adaptive test strategies
    • Desmos practice in the Digital SAT
    • SAT and ACT mathematics question analysis

    TestPrep question banks authored

  • David Kim

    Senior TOEFL Instructor / TestPrep QBank Author

    Teaching areas

    TOEFL iBT · Academic English Integration

    Teaching since 2015

    View full profile: David Kim

    Education

    • B.A. (Bachelor’s degree): University of Washington — English
    • M.A. (Master’s degree): University of British Columbia — TESOL

    About

    David Kim has focused his examination coaching on TOEFL iBT since 2015. Teaching academic English in line with ETS standards, Kim helps candidates strengthen their academic reading and writing, listening and note-taking strategies, and approaches to speaking into a microphone.

    Teaching areas and specialisms

    • TOEFL iBT and academic English
    • Academic reading and writing skills
    • Listening, note-taking and speaking into a microphone

    TestPrep question banks authored

    • TOEFL
  • Defne Aksu

    Senior SAT & ACT Verbal Instructor / TestPrep QBank Author

    Teaching areas

    SAT Reading and Writing · ACT English · ACT Reading

    Teaching since 2016

    View full profile: Defne Aksu

    Education

    • B.A. (Bachelor’s degree): Hacettepe Üniversitesi — English Language and Literature
    • M.A. (Master’s degree): Bilkent Üniversitesi — English Language and Literature

    About

    Defne Aksu has taught SAT and ACT verbal preparation since 2016, drawing on her extensive background in English language and literature. Her current courses cover Digital SAT Reading and Writing and ACT English and Reading. She helps students work towards their target scores through vocabulary development, contextual inference and a firm understanding of standard English conventions.

    Teaching areas and specialisms

    • Vocabulary development
    • Contextual inference
    • Standard English conventions

    TestPrep question banks authored

  • Defne Yalçın

    Senior SAT, ACT & SSAT Mathematics Instructor

    Teaching areas

    Digital SAT Math · ACT Math · SSAT Math

    Teaching since 2016

    View full profile: Defne Yalçın

    Education

    • B.Sc. (Bachelor’s degree): Yıldız Teknik Üniversitesi — Mathematics
    • M.Sc. (Master’s degree): Bilkent Üniversitesi — Mathematics

    About

    Defne Yalçın has taught mathematics for secondary school admission through the SSAT and university admission through the SAT and ACT since 2016. She helps students in the later years of middle school and throughout high school adapt to international examinations, build mathematical confidence and manage their time effectively.

    Teaching areas and specialisms

    • SSAT, SAT and ACT quantitative preparation
    • Mathematical confidence
    • Examination time management

    TestPrep question banks authored

  • Deniz Arslan

    Senior AP Calculus Instructor

    Teaching areas

    AP Calculus AB and BC

    Teaching since 2018

    View full profile: Deniz Arslan

    Education

    • B.Sc. (Bachelor’s degree): Yıldız Teknik Üniversitesi — Mathematics
    • M.Sc. (Master’s degree): Boğaziçi Üniversitesi — Mathematics

    About

    Deniz Arslan has focused on Advanced Placement mathematics since 2018. Her AP Calculus AB and BC preparation builds conceptual clarity in differentiation, applications of integration and volume calculations, as well as the Taylor and Maclaurin series covered in BC.

    Teaching areas and specialisms

    • Applications of differentiation and integration
    • Volume calculations
    • Taylor and Maclaurin series in AP Calculus BC

    TestPrep question banks authored

    • AP Calculus AB
    • AP Calculus BC
  • Deniz Erol

    IB Economics Tutor

    Teaching areas

    IB

  • Dilara Sungur

    IB Extended Essay Tutor

    Teaching areas

    IB

  • Doruk Sezgin

    IB History Tutor

    Teaching areas

    IB

  • Ece Yıldırım

    Senior SAT, ACT & SSAT Mathematics Instructor

    Teaching areas

    Digital SAT Math · ACT Math · SSAT Math

    Teaching since 2014

    View full profile: Ece Yıldırım

    Education

    • B.Sc. (Bachelor’s degree): Hacettepe Üniversitesi — Mathematics
    • M.Sc. (Master’s degree): Sabancı Üniversitesi — Mathematics

    About

    Ece Yıldırım has taught quantitative preparation for the SSAT, SAT and ACT since 2014. Her approach centers on a secure understanding of fundamental mathematics, careful interpretation of questions and reducing errors under time pressure.

    Teaching areas and specialisms

    • Fundamental mathematical concepts
    • Interpreting question wording
    • Accuracy under time pressure

    TestPrep question banks authored

  • Eda Karataş

    Senior AP Statistics Instructor / TestPrep QBank Author

    Teaching areas

    AP Statistics

    Teaching since 2015

    View full profile: Eda Karataş

    Education

    • B.Sc. (Bachelor’s degree): Hacettepe Üniversitesi — Statistics
    • M.Sc. (Master’s degree): Orta Doğu Teknik Üniversitesi (ODTÜ) — Statistics

    About

    Eda Karataş has taught AP Statistics since 2015. She helps students work towards a score of 5 through exploratory data analysis, sampling and experimental design, probability, statistical inference and regression analysis.

    Teaching areas and specialisms

    • Exploratory data analysis
    • Sampling and experimental design
    • Probability
    • Statistical inference and regression

    TestPrep question banks authored

    • AP Statistics
  • Elena Rossi

    Senior LNAT Instructor / TestPrep QBank Author

    Teaching areas

    LNAT Reasoning Strategies and Essay Writing Techniques

    Teaching since 2016

    View full profile: Elena Rossi

    Education

    • B.A. (Bachelor’s degree): University of Milan — Law
    • M.A. (Master’s degree): University of Bristol — Law

    About

    Elena Rossi has worked as a senior LNAT preparation instructor since 2016. Rossi’s programs support applicants pursuing legal education internationally, with a focus on critical reading, data analysis and techniques for constructing strong arguments in the LNAT essay.

    Teaching areas and specialisms

    • Critical reading and data analysis for the LNAT
    • Reasoning strategies
    • LNAT essay writing and argumentation

    TestPrep question banks authored

    • LNAT
  • Elif Çakır

    IB Psychology Tutor

    Teaching areas

    IB

  • Elif Korkmaz

    Senior SAT & ACT Verbal Instructor / TestPrep QBank Author

    Teaching areas

    SAT Reading and Writing · ACT English · ACT Reading

    Teaching since 2015

    View full profile: Elif Korkmaz

    Education

    • B.A. (Bachelor’s degree): Hacettepe Üniversitesi — English Language Teaching
    • M.A. (Master’s degree): Boğaziçi Üniversitesi — English Language Teaching

    About

    Elif Korkmaz has worked as a senior instructor in the verbal sections of the SAT and ACT since 2015, supporting students through international admissions preparation. Drawing on her academic background in English language teaching, she combines language education with examination practice to develop methods for reading comprehension, grammar and time management in digital test formats.

    Teaching areas and specialisms

    • Reading comprehension
    • Grammatical structures
    • Time management in digital examinations

    TestPrep question banks authored

  • Emily Foster

    Senior SAT & ACT Verbal Instructor / TestPrep QBank Author

    Teaching areas

    SAT Reading and Writing · ACT English · ACT Reading

    Teaching since 2015

    View full profile: Emily Foster

    Education

    • B.A. (Bachelor’s degree): University of Sydney — English
    • M.A. (Master’s degree): University of Melbourne — English Education

    About

    Emily Foster has mentored international high school students in SAT and ACT preparation since 2015. Working with the official College Board and ACT content frameworks, she teaches practical approaches to text-based reasoning and strategies for the adaptive modules used in the Digital SAT.

    Teaching areas and specialisms

    • Text-based reasoning
    • Digital SAT adaptive module strategies
    • College Board and ACT content frameworks

    TestPrep question banks authored

  • Emir Yıldırım

    IB Geography Tutor

    Teaching areas

    IB

  • Emre Çetin

    IB Physics Tutor

    Teaching areas

    IB

  • Emre Öztürk

    Senior LSAT Instructor / TestPrep QBank Author

    Teaching areas

    LSAT Logical Reasoning · LSAT Reading Comprehension

    Teaching since 2016

    View full profile: Emre Öztürk

    Education

    • B.A. (Bachelor’s degree): Ankara Üniversitesi — Law
    • M.A. (Master’s degree): Koç Üniversitesi — Law

    About

    Emre Öztürk has drawn on a legal background and analytical training to mentor LSAT candidates since 2016. The Law School Admission Test is used for admission to law schools in the United States and Canada. Öztürk’s specialisms include analyzing complex arguments and developing rigorous reasoning techniques for Logical Reasoning and Reading Comprehension.

    Teaching areas and specialisms

    • LSAT Logical Reasoning
    • LSAT Reading Comprehension
    • Analysis of complex logical arguments

    TestPrep question banks authored

    • LSAT Logical Reasoning
    • LSAT Reading Comprehension
  • Eren Aksoy

    IB Business Management Tutor

    Teaching areas

    IB

  • Eylem Sarı

    IB Exam Camp Tutor

    Teaching areas

    IB

  • Eylül Şahin

    IB Computer Science Tutor

    Teaching areas

    IB

  • Ezgi Kurt

    IB Environmental Systems and Societies (ESS) Tutor

    Teaching areas

    IB

  • Ezgi Tunç

    Senior SSAT Verbal & Reading Instructor / TestPrep QBank Author

    Teaching areas

    SSAT Verbal · SSAT Reading

    Teaching since 2016

    View full profile: Ezgi Tunç

    Education

    • B.A. (Bachelor’s degree): Hacettepe Üniversitesi — English Language Teaching
    • M.A. (Master’s degree): Bilkent Üniversitesi — English Language Teaching

    About

    Ezgi Tunç has taught verbal reasoning and reading techniques to middle school students preparing for the SSAT since 2016. Her explanations make the technical aspects of the examination accessible to younger learners, while her question-analysis methods are designed to reduce avoidable errors.

    Teaching areas and specialisms

    • Verbal reasoning
    • Reading techniques
    • Accessible examination instruction for younger learners
    • Question analysis to reduce errors

    TestPrep question banks authored

    • SSAT
  • Fergal Brennan

    Senior AP Calculus AB & BC Instructor / TestPrep QBank Author

    Teaching areas

    AP Calculus AB and BC

    Teaching since 2017

    View full profile: Fergal Brennan

    Education

    • B.Sc. (Bachelor’s degree): University College Cork — Mathematics
    • M.Sc. (Master’s degree): University of Edinburgh — Mathematics

    About

    Fergal Brennan has supported high school students in AP Calculus since 2017. His courses focus on analytical thinking, the fundamental connection between differentiation and integration, and free-response question strategies aligned with College Board assessment criteria.

    Teaching areas and specialisms

    • Limits, derivatives and integrals
    • Series in AP Calculus BC
    • Solution strategies aligned with AP FRQ marking criteria

    TestPrep question banks authored

    • AP Calculus AB
    • AP Calculus BC
  • Furkan Aslan

    IB Chemistry Tutor

    Teaching areas

    IB

  • Gamze Akın

    IB Chemistry Tutor

    Teaching areas

    IB

  • Gizem Yılmaz

    IB Theory of Knowledge (TOK) Tutor

    Teaching areas

    IB

  • Gökhan İnce

    Senior AP Calculus Instructor

    Teaching areas

    AP Calculus AB and BC

    Teaching since 2016

    View full profile: Gökhan İnce

    Education

    • B.Sc. (Bachelor’s degree): Yıldız Teknik Üniversitesi — Mathematics
    • M.Sc. (Master’s degree): İstanbul Teknik Üniversitesi (İTÜ) — Mathematics

    About

    Gökhan İnce has worked as a senior AP Calculus AB and BC instructor since 2016. His teaching emphasizes understanding the reasoning behind theorems rather than memorizing them, preparing students to tackle demanding analytical questions in international examinations.

    Teaching areas and specialisms

    • AP Calculus AB and BC
    • Conceptual foundations of theorems
    • Advanced analytical problem solving

    TestPrep question banks authored

    • AP Calculus AB
    • AP Calculus BC
  • Hakan Erden

    IB Physics Tutor

    Teaching areas

    IB

  • Hakan Polat

    A-Level Business Tutor

    Teaching areas

    A-Level Business

    Teaching since 2012

    View full profile: Hakan Polat

    About

    A-Level Business specialist — experienced in case-study analysis and strategic decision making.

  • Hana Suzuki

    Senior GMAT & GRE Quant / Data Insights Instructor & Question Bank Author

    Teaching areas

    GMAT Quantitative Reasoning · GMAT Data Insights · GRE Quantitative Reasoning

    Teaching since 2014

    View full profile: Hana Suzuki

    Education

    • B.Sc. (Bachelor’s degree): University of Tsukuba — Mathematics
    • M.Sc. (Master’s degree): University of Melbourne — Mathematics

    About

    Hana Suzuki has mentored GMAT and GRE quantitative candidates since 2014. Working within the examinations’ assessment frameworks, she develops students’ inductive reasoning and data-processing skills through question types such as GMAT Problem Solving, GRE Numeric Entry and GMAT Data Insights Two-Part Analysis.

    Teaching areas and specialisms

    • GMAT Quant: algebra, arithmetic and Problem Solving
    • GRE Quant: geometry, Problem Solving, Numeric Entry and Quantitative Comparison
    • GMAT Data Insights: data interpretation, Two-Part Analysis, Graphics Interpretation and Data Sufficiency

    TestPrep question banks authored

  • Hande Engin

    IB History Tutor

    Teaching areas

    IB

  • Hazal Kurt

    IB Philosophy Tutor

    Teaching areas

    IB

  • Hilal Öztürk

    IB Turkish A Tutor

    Teaching areas

    IB

  • İlker Başaran

    IB Economics Tutor

    Teaching areas

    IB Economics

    Teaching since 2014

    View full profile: İlker Başaran

    About

    Specialist in Internal Assessment and Extended Essay mentoring.

  • Ingrid Halvorsen

    Senior AP Statistics Instructor / TestPrep QBank Author

    Teaching areas

    AP Statistics

    Teaching since 2016

    View full profile: Ingrid Halvorsen

    Education

    • B.Sc. (Bachelor’s degree): University of Bergen — Mathematics
    • M.Sc. (Master’s degree): University of Oslo — Statistics

    About

    Ingrid Halvorsen has specialized in AP Statistics since 2016. Her teaching focuses on data visualization, normal distribution models and regression analysis. She develops strategies to help students answer AP multiple-choice questions efficiently and accurately.

    Teaching areas and specialisms

    • Descriptive statistics
    • Normal distribution
    • Regression
    • Statistical inference

    TestPrep question banks authored

    • AP Statistics
  • Ingrid Larsen

    Senior IB Biology Instructor / TestPrep QBank Author

    Teaching areas

    IB Biology

    Teaching since 2015

    View full profile: Ingrid Larsen

    Education

    • B.Sc. (Bachelor’s degree): University of Oslo — Biology
    • M.Sc. (Master’s degree): University of Copenhagen — Biology

    About

    Ingrid Larsen has supported students through IB Biology examinations since 2015. She develops their experimental inquiry skills and works with them on analyzing and interpreting data for the IB Internal Assessment (IA), as well as Paper 1 and Paper 2 question formats.

    Teaching areas and specialisms

    • IB Biology SL/HL curriculum and IA report design

    TestPrep question banks authored

    • IB Biology
  • İpek Gürel

    Senior GMAT & GRE Verbal Instructor / TestPrep QBank Author

    Teaching areas

    GMAT Verbal Reasoning · GRE Verbal Reasoning · GRE Analytical Writing

    Teaching since 2015

    View full profile: İpek Gürel

    Education

    • B.A. (Bachelor’s degree): Hacettepe Üniversitesi — English Language Teaching
    • M.A. (Master’s degree): Boğaziçi Üniversitesi — Applied Linguistics

    About

    İpek Gürel has developed advanced academic language strategies for GMAT Verbal, GRE Verbal and GRE Analytical Writing since 2015. Through an applied linguistics approach, she helps candidates recognize semantic relationships between words and improve the accuracy of each step in their logical reasoning.

    Teaching areas and specialisms

    • Academic language strategies
    • Semantic relationships between words
    • Logical reasoning
    • Applied linguistics

    TestPrep question banks authored

  • İrem Yılmaz

    Senior IB Biology & AP Biology Instructor / TestPrep QBank Author

    Teaching areas

    IB Biology · AP Biology

    Teaching since 2017

    View full profile: İrem Yılmaz

    Education

    • B.Sc. (Bachelor’s degree): Hacettepe Üniversitesi — Biology
    • M.Sc. (Master’s degree): Bilkent Üniversitesi — Molecular Biology and Genetics

    About

    İrem Yılmaz has taught IB Biology and AP Biology exam preparation side by side since 2017. Bringing her background in molecular biology and genetics to the classroom, she specializes in solving AP free-response questions (FRQs) against their scoring criteria and writing scientific experimental reports to IB standards.

    Teaching areas and specialisms

    • IB Biology and cellular and molecular modeling in AP Biology

    TestPrep question banks authored

    • IB Biology
    • AP Biology
  • Jakub Wróbel

    Senior GMAT & GRE Quant / Data Insights Instructor & Question Bank Author

    Teaching areas

    GMAT Quantitative Reasoning · GMAT Data Insights · GRE Quantitative Reasoning

    Teaching since 2015

    View full profile: Jakub Wróbel

    Education

    • B.Sc. (Bachelor’s degree): University of Warsaw — Mathematics
    • M.Sc. (Master’s degree): University of Edinburgh — Mathematics

    About

    Jakub Wróbel has worked on GMAT and GRE quantitative test strategies, advanced data interpretation and time management under examination pressure since 2015. He has particular expertise in Table Analysis and Graphics Interpretation within GMAT Data Insights.

    Teaching areas and specialisms

    • GMAT Quant: arithmetic, algebra and Problem Solving
    • GRE Quant: geometry, Quantitative Comparison, Problem Solving and Numeric Entry
    • GMAT Data Insights: Multi-Source Reasoning, Table Analysis and Graphics Interpretation

    TestPrep question banks authored

  • James Reid

    Senior IB English B Instructor / TestPrep QBank Author

    Teaching areas

    IB English B · Integration of the Four Core Language Skills

    Teaching since 2014

    View full profile: James Reid

    Education

    • B.A. (Bachelor’s degree): University of Glasgow — English
    • M.A. (Master’s degree): University of Edinburgh — Applied Linguistics

    About

    James Reid has provided comprehensive instruction in reading, writing, listening and speaking for IB English B since 2014. Drawing on a background in applied linguistics, Reid helps IB students who learn English as an additional language strengthen their argumentation skills and prepare for international examinations.

    Teaching areas and specialisms

    • IB English B reading, writing, listening and speaking
    • Applied linguistics
    • Argumentation skills in an additional language

    TestPrep question banks authored

    • IB English B
  • James Whitfield

    UCAT Tutor

    Teaching areas

    UCAT

    Teaching since 2015

    View full profile: James Whitfield

    About

    Specialist in UCAT Quantitative Reasoning and Decision Making.

  • Jordan Carter

    Senior IB, A Level & IGCSE Mathematics Instructor

    Teaching areas

    IB Mathematics · A Level Mathematics · IGCSE Mathematics

    Teaching since 2013

    View full profile: Jordan Carter

    Education

    • B.Sc. (Bachelor’s degree): University of Melbourne — Mathematics
    • M.Sc. (Master’s degree): University of Sydney — Mathematics

    About

    Jordan Carter has taught IB, A Level and IGCSE mathematics since 2013. His student-centred, analytical approach helps learners meet the academic requirements of their international school programs and work towards strong results in their final examinations.

    Teaching areas and specialisms

    • IB, A Level and IGCSE mathematics curricula
    • Student-centred analytical teaching
    • Final examination preparation

    TestPrep question banks authored

    • IB Mathematics
    • A-Level Mathematics
    • IGCSE Mathematics
  • Kaan Erdem

    IB Psychology Tutor

    Teaching areas

    IB

  • Kaan Karahan

    IB Global Politics Tutor

    Teaching areas

    IB

  • Kemal Soylu

    IB Geography Tutor

    Teaching areas

    IB

  • Kenan Arı

    Senior SSAT & SAT Mathematics Instructor

    Teaching areas

    Digital SAT Math · SSAT Math

    Teaching since 2018

    View full profile: Kenan Arı

    Education

    • B.Sc. (Bachelor’s degree): Yıldız Teknik Üniversitesi — Mathematics
    • M.Sc. (Master’s degree): Boğaziçi Üniversitesi — Mathematics

    About

    Kenan Arı has supported students preparing for secondary school admission through the SSAT and university admission through the SAT since 2018. He focuses on helping younger candidates adjust to international examinations, develop productive test-taking habits and meet Digital SAT Math requirements.

    Teaching areas and specialisms

    • SSAT quantitative preparation
    • Digital SAT Math
    • Adjustment to international examinations and test-taking habits

    TestPrep question banks authored

  • Kerem Atalay

    Senior AP Calculus Instructor

    Teaching areas

    AP Calculus AB and BC

    Teaching since 2017

    View full profile: Kerem Atalay

    Education

    • B.Sc. (Bachelor’s degree): TOBB Ekonomi ve Teknoloji Üniversitesi — Mathematics
    • M.Sc. (Master’s degree): Bilkent Üniversitesi — Mathematics

    About

    Kerem Atalay has taught AP Calculus AB and BC as a senior instructor since 2017. His courses combine teaching aligned with College Board assessment criteria, analytical discussion of past examination questions and original question-bank practice to help students improve their scores.

    Teaching areas and specialisms

    • AP Calculus AB and BC
    • College Board assessment criteria
    • Past examination question analysis
    • Original question-bank practice

    TestPrep question banks authored

    • AP Calculus AB
    • AP Calculus BC
  • Kerem Demir

    Senior LNAT Instructor / TestPrep QBank Author

    Teaching areas

    LNAT Verbal Reasoning and Critical Thinking

    Teaching since 2017

    View full profile: Kerem Demir

    Education

    • B.A. (Bachelor’s degree): Ankara Üniversitesi — Law
    • M.A. (Master’s degree): Koç Üniversitesi — Law

    About

    Kerem Demir has taught critical text analysis and advanced logical reasoning for the LNAT since 2017. Demir’s approach helps candidates interpret complex philosophical, legal and social texts efficiently and identify gaps in the reasoning of an argument.

    Teaching areas and specialisms

    • LNAT verbal reasoning and critical thinking
    • Analysis of philosophical, legal and social texts
    • Identifying gaps in an argument’s reasoning

    TestPrep question banks authored

    • LNAT
  • Kerem Eroğlu

    IB Extended Essay Tutor

    Teaching areas

    IB

  • Kevin Nguyen

    Senior IB, A Level & IGCSE Mathematics Instructor

    Teaching areas

    IB Mathematics · A Level Mathematics · IGCSE Mathematics

    Teaching since 2014

    View full profile: Kevin Nguyen

    Education

    • B.Sc. (Bachelor’s degree): University of Waterloo — Mathematics
    • M.Sc. (Master’s degree): University of Toronto — Mathematics

    About

    Kevin Nguyen has taught IB, A Level and IGCSE mathematics since 2014. Drawing on his understanding of different examination structures and marking rubrics, he helps students develop the quantitative skills required by international school programs.

    Teaching areas and specialisms

    • IB, A Level and IGCSE mathematics
    • International examination structures
    • Marking rubrics

    TestPrep question banks authored

    • IB Mathematics
    • A-Level Mathematics
    • IGCSE Mathematics
  • Korkut Erbil

    IB Revision Tutor

    Teaching areas

    IB

  • Lara Tunç

    IB Geography Tutor

    Teaching areas

    IB

  • Laura Bennett

    A-Level Chemistry Tutor

    Teaching areas

    A-Level Chemistry

    Teaching since 2013

    View full profile: Laura Bennett

    About

    A-Level Chemistry specialist with experience in practical endorsement preparation.

  • Lauren Walsh

    Senior GMAT & GRE Verbal Instructor / TestPrep QBank Author

    Teaching areas

    GMAT Verbal Reasoning · GRE Verbal Reasoning · GRE Analytical Writing

    Teaching since 2015

    View full profile: Lauren Walsh

    Education

    • B.A. (Bachelor’s degree): University of Sydney — English
    • M.A. (Master’s degree): University of Melbourne — Applied Linguistics

    About

    Lauren Walsh has worked as a specialist instructor in GMAT and GRE verbal preparation for MBA and postgraduate admission since 2015. She develops comprehensive programs in advanced argument analysis, the identification of logical flaws and critical thinking, with teaching across GMAT Verbal Reasoning, GRE Verbal Reasoning and GRE Analytical Writing.

    Teaching areas and specialisms

    • Advanced argument analysis
    • Identifying logical flaws
    • Critical thinking

    TestPrep question banks authored

  • Lena Hoffmann

    Senior AP Biology Instructor / TestPrep QBank Author

    Teaching areas

    AP Biology

    Teaching since 2015

    View full profile: Lena Hoffmann

    Education

    • B.Sc. (Bachelor’s degree): University of Heidelberg — Biology
    • M.Sc. (Master’s degree): University of Zurich — Biology

    About

    Lena Hoffmann has taught students preparing for AP Biology since 2015. She develops practice frameworks for building speed on multiple-choice questions covering cell organization, enzyme kinetics, molecular inheritance and evolutionary mechanisms in the AP Biology format.

    Teaching areas and specialisms

    • AP Biology cell structure, enzymes and evolutionary processes

    TestPrep question banks authored

    • AP Biology
  • Levent Çankaya

    IB Theory of Knowledge (TOK) Tutor

    Teaching areas

    IB

  • Lotte van den Berg

    Senior AP Calculus AB & BC Instructor / TestPrep QBank Author

    Teaching areas

    AP Calculus AB and BC

    Teaching since 2014

    View full profile: Lotte van den Berg

    Education

    • B.Sc. (Bachelor’s degree): Utrecht University — Mathematics
    • M.Sc. (Master’s degree): University of Groningen — Mathematics

    About

    Lotte van den Berg has taught AP Calculus AB and BC internationally since 2014. Her teaching emphasizes conceptual depth and mathematical reasoning rather than memorizing formulas, preparing students for advanced question types and effective time management during examinations.

    Teaching areas and specialisms

    • Applications of differentiation
    • Advanced integration techniques
    • Series and polar equations in AP Calculus BC

    TestPrep question banks authored

    • AP Calculus AB
    • AP Calculus BC
  • Lukas Bergmann

    English Teacher / Senior UCAT Verbal Reasoning & Situational Judgement Instructor

    Teaching areas

    UCAT Verbal Reasoning · UCAT Situational Judgement Analysis

    Teaching since 2016

    View full profile: Lukas Bergmann

    Education

    • B.A. (Bachelor’s degree): University of Vienna — English and American Studies
    • M.A. (Master’s degree): University of Edinburgh — Applied Linguistics

    About

    Lukas Bergmann has worked as a senior UCAT Verbal Reasoning and Situational Judgement coach since 2016. Drawing on an English teaching perspective, Bergmann applies structured approaches to critical reading, rational argument analysis and ethical reasoning questions involving professional duties in medicine.

    Teaching areas and specialisms

    • Critical reading for the UCAT
    • Rational argument analysis
    • Ethical reasoning in the context of professional duties in medicine

    TestPrep question banks authored

    • UCAT Verbal Reasoning
    • UCAT Situational Judgement
  • Marcus Johnson

    Senior IB, A Level & IGCSE Mathematics Instructor

    Teaching areas

    IB Mathematics · A Level Mathematics · IGCSE Mathematics

    Teaching since 2015

    View full profile: Marcus Johnson

    Education

    • B.Sc. (Bachelor’s degree): University of Manchester — Mathematics
    • M.Sc. (Master’s degree): University of Edinburgh — Mathematics

    About

    Marcus Johnson has taught IB, A Level and IGCSE mathematics since 2015. He develops students’ analytical thinking, independent problem-solving skills and examination pacing, using the connections between international curricula to make complex mathematical ideas easier to understand.

    Teaching areas and specialisms

    • Analytical thinking
    • Independent problem solving
    • Examination time management
    • International mathematics curricula

    TestPrep question banks authored

    • IB Mathematics
    • A-Level Mathematics
    • IGCSE Mathematics
  • Marek Dvořák

    Senior A-Level Biology & IGCSE Biology Instructor / TestPrep QBank Author

    Teaching areas

    A-Level Biology · IGCSE Biology

    Teaching since 2014

    View full profile: Marek Dvořák

    Education

    • B.Sc. (Bachelor’s degree): Charles University — Biology
    • M.Sc. (Master’s degree): University of Zurich — Biology

    About

    Marek Dvořák has taught A-Level and IGCSE Biology to students at international schools since 2014. His methods help students work towards strong results in advanced systems physiology, biochemical reactions and the analytical reporting of experimental laboratory findings.

    Teaching areas and specialisms

    • A-Level Biology and interpretation of IGCSE experimental data

    TestPrep question banks authored

    • A-Level Biology
    • IGCSE Biology
  • Marek Novotný

    Senior AP Statistics Instructor / TestPrep QBank Author

    Teaching areas

    AP Statistics

    Teaching since 2014

    View full profile: Marek Novotný

    Education

    • B.Sc. (Bachelor’s degree): Charles University — Mathematics
    • M.Sc. (Master’s degree): University of Edinburgh — Statistics

    About

    Marek Novotný has taught AP Statistics internationally since 2014. Combining his background in theoretical mathematics with statistical modeling, he helps students understand experimental design, data collection methods and the interpretation of complex statistical inferences.

    Teaching areas and specialisms

    • Sampling
    • Experimental design
    • Probability distributions
    • Hypothesis testing

    TestPrep question banks authored

    • AP Statistics
  • Mariana Ospina

    Senior AP Statistics Instructor / TestPrep QBank Author

    Teaching areas

    AP Statistics

    Teaching since 2015

    View full profile: Mariana Ospina

    Education

    • B.Sc. (Bachelor’s degree): University of Antioquia — Statistics
    • M.Sc. (Master’s degree): University of British Columbia — Statistics

    About

    Mariana Ospina has mentored international high school students in AP preparation since 2015. Her approach moves beyond memorization to develop statistical thinking and sound data interpretation, alongside current examination strategies aligned with College Board requirements.

    Teaching areas and specialisms

    • Probability theory
    • Sampling distributions
    • Confidence intervals
    • Hypothesis testing

    TestPrep question banks authored

    • AP Statistics
  • Mark Stevens

    Senior IGCSE & A-Level English Instructor / TestPrep QBank Author

    Teaching areas

    IGCSE English Language & Literature · A-Level English Literature · A-Level English Language

    Teaching since 2013

    View full profile: Mark Stevens

    Education

    • B.A. (Bachelor’s degree): University of Manchester — English Literature
    • M.A. (Master’s degree): University of Leeds — English Literature

    About

    Mark Stevens has specialized in IGCSE and A-Level English Language and Literature since 2013. Stevens’s teaching focuses on textual analysis, essay structure and academic writing approaches aligned with the expectations of international examination boards.

    Teaching areas and specialisms

    • Textual analysis for IGCSE and A-Level
    • Essay structure
    • Academic writing aligned with examination board expectations

    TestPrep question banks authored

    • IGCSE English
    • A-Level English
  • Megan O'Brien

    Senior ACT English & Reading Instructor / TestPrep QBank Author

    Teaching areas

    ACT English · ACT Reading

    Teaching since 2014

    View full profile: Megan O'Brien

    Education

    • B.A. (Bachelor’s degree): University College Dublin — English
    • M.A. (Master’s degree): University of Edinburgh — English Literature

    About

    Megan O'Brien has guided high school students through ACT preparation for university study abroad since 2014. She develops practical question-solving strategies and conceptual reading approaches for the examination’s grammar and punctuation requirements, as well as the detailed text analysis required in ACT Reading.

    Teaching areas and specialisms

    • ACT grammar and punctuation
    • Reading passage analysis
    • Practical question-solving strategies
    • Conceptual reading approaches

    TestPrep question banks authored

    • ACT English & Reading
  • Mehmet Doğan

    Senior IB Biology Instructor / TestPrep QBank Author

    Teaching areas

    IB Biology

    Teaching since 2015

    View full profile: Mehmet Doğan

    Education

    • B.Sc. (Bachelor’s degree): Ege Üniversitesi — Biology
    • M.Sc. (Master’s degree): İstanbul Üniversitesi — Biology

    About

    Mehmet Doğan has taught IB Biology in line with international school curricula since 2015. His teaching approach aims to clarify challenging concepts in cellular processes, molecular genetics, population ecology and human physiology while building students' analytical problem-solving habits.

    Teaching areas and specialisms

    • IB Biology curriculum integration and examination strategies

    TestPrep question banks authored

    • IB Biology
  • Mehtap Yenal

    IB Turkish (Translation) Tutor

    Teaching areas

    IB

  • Melis Acar

    IB Turkish A: Literature Tutor

    Teaching areas

    IB Turkish A: Literature

    Teaching since 2014

    View full profile: Melis Acar

    About

    Teaches IB Turkish A: Literature.

  • Melis Önal

    IB Economics Tutor

    Teaching areas

    IB

  • Mert Yılmaz

    Senior GMAT & GRE Quant Instructor / Data Insights Specialist

    Teaching areas

    GMAT Quantitative Reasoning · GMAT Data Insights · GRE Quantitative Reasoning

    Teaching since 2015

    View full profile: Mert Yılmaz

    Education

    • B.Sc. (Bachelor’s degree): Yıldız Teknik Üniversitesi — Industrial Engineering
    • M.Sc. (Master’s degree): Boğaziçi Üniversitesi — Mathematics

    About

    Mert Yılmaz draws on his background in industrial engineering and his master’s studies in mathematics in quantitative exam preparation, which he has taught since 2015. His current teaching covers GMAT Quant, GRE Quant and GMAT Data Insights, helping candidates work efficiently with data interpretation, graphs, tables and quantitative reasoning.

    Teaching areas and specialisms

    • GMAT and GRE Quant
    • GMAT Data Insights
    • Data interpretation, graph analysis and table reading
    • Quantitative reasoning

    TestPrep question banks authored

  • Mete Akın

    IB Philosophy Tutor

    Teaching areas

    IB

  • Murat Köse

    IB Turkish A Tutor

    Teaching areas

    IB

  • Murat Özdemir

    Senior GMAT & GRE Quant Instructor / Data Insights Specialist

    Teaching areas

    GMAT Quantitative Reasoning · GMAT Data Insights · GRE Quantitative Reasoning

    Teaching since 2014

    View full profile: Murat Özdemir

    Education

    • B.Sc. (Bachelor’s degree): Hacettepe Üniversitesi — Mathematics
    • M.Sc. (Master’s degree): Orta Doğu Teknik Üniversitesi (ODTÜ) — Mathematics

    About

    Murat Özdemir has mentored candidates in the quantitative sections of the GMAT and GRE for MBA and postgraduate admission since 2014. He designs programs around challenging algebra and arithmetic problems, reasoning strategies and effective time management under examination pressure. He also teaches GMAT Data Insights.

    Teaching areas and specialisms

    • Algebra and arithmetic
    • Quantitative reasoning strategies
    • GMAT Data Insights
    • Time management under examination pressure

    TestPrep question banks authored

  • Nadia El-Sayed

    Senior AP Biology Instructor / TestPrep QBank Author

    Teaching areas

    AP Biology

    Teaching since 2016

    View full profile: Nadia El-Sayed

    Education

    • B.Sc. (Bachelor’s degree): American University in Cairo — Biology
    • M.Sc. (Master’s degree): University of Toronto — Biology

    About

    Nadia El-Sayed has mentored international secondary school students in AP Biology since 2016. Her areas of expertise include cellular energy transformations through respiration and photosynthesis, molecular inheritance, population ecology and advanced quantitative data analysis questions in the AP exam.

    Teaching areas and specialisms

    • Cellular energy systems, data analysis and population ecology

    TestPrep question banks authored

    • AP Biology
  • Naz Korkmaz

    Senior IB Biology Instructor / TestPrep QBank Author

    Teaching areas

    IB Biology

    Teaching since 2016

    View full profile: Naz Korkmaz

    Education

    • B.Sc. (Bachelor’s degree): Hacettepe Üniversitesi — Biology
    • M.Sc. (Master’s degree): Orta Doğu Teknik Üniversitesi (ODTÜ) — Biology

    About

    Naz Korkmaz has taught International Baccalaureate (IB) Biology since 2016. Drawing on her academic background at Middle East Technical University, she teaches inquiry-based approaches to questions and focuses on the IB Internal Assessment process, laboratory data analysis and methods for reviewing scientific papers.

    Teaching areas and specialisms

    • IB Biology Standard Level (SL) and Higher Level (HL) preparation

    TestPrep question banks authored

    • IB Biology
  • Naz Yıldız

    IB Psychology Tutor

    Teaching areas

    IB

  • Nazlı Bayrak

    Senior SSAT Verbal & Reading Instructor / TestPrep QBank Author

    Teaching areas

    SSAT Verbal · SSAT Reading

    Teaching since 2016

    View full profile: Nazlı Bayrak

    Education

    • B.A. (Bachelor’s degree): İstanbul Üniversitesi — English Language and Literature
    • M.A. (Master’s degree): Boğaziçi Üniversitesi — English Language and Literature

    About

    Nazlı Bayrak has prepared middle school students for the SSAT Verbal and Reading sections since 2016. Her pedagogical approach supports early vocabulary development, disciplined reading habits and effective examination time management for students seeking admission to international secondary schools.

    Teaching areas and specialisms

    • Early vocabulary development
    • Disciplined reading habits
    • Effective examination time management

    TestPrep question banks authored

    • SSAT
  • Neha Kulkarni

    Senior GMAT & GRE Quant / Data Insights Instructor & Question Bank Author

    Teaching areas

    GMAT Quantitative Reasoning · GMAT Data Insights · GRE Quantitative Reasoning

    Teaching since 2014

    View full profile: Neha Kulkarni

    Education

    • B.Sc. (Bachelor’s degree): University of Pune — Mathematics
    • M.Sc. (Master’s degree): University of Toronto — Applied Mathematics

    About

    Neha Kulkarni has taught quantitative preparation for MBA and postgraduate admission since 2014. Her current areas include GMAT Quant, GRE Quant and GMAT Data Insights. She develops strategies to improve speed and accuracy in GMAT Data Sufficiency and Multi-Source Reasoning questions, as well as GRE Quantitative Comparison.

    Teaching areas and specialisms

    • GMAT Quant: arithmetic, algebra and Problem Solving
    • GRE Quant: Quantitative Comparison, Problem Solving and Numeric Entry
    • GMAT Data Insights: Data Sufficiency, Multi-Source Reasoning, Table Analysis, Graphics Interpretation and Two-Part Analysis

    TestPrep question banks authored

  • Nehir Acar

    Pre-IB Tutor

    Teaching areas

    IB

  • Niamh O'Connell

    English Teacher / Senior UCAT Verbal Reasoning & Situational Judgement Instructor

    Teaching areas

    UCAT Verbal Reasoning · UCAT Situational Judgement (Medical Ethics and Behavioural Decision-Making)

    Teaching since 2015

    View full profile: Niamh O'Connell

    Education

    • B.A. (Bachelor’s degree): University of Galway — English
    • M.A. (Master’s degree): University College Dublin — Applied Linguistics

    About

    Niamh O'Connell has specialized in the verbal reasoning and situational judgement sections of the UCAT since 2015, supporting candidates seeking medical education in the United Kingdom, Australia and New Zealand. Drawing on a background in English teaching and applied linguistics, O’Connell focuses on efficient text analysis in Verbal Reasoning and the analysis of medical ethics scenarios in Situational Judgement.

    Teaching areas and specialisms

    • Efficient text analysis for UCAT Verbal Reasoning
    • UCAT Situational Judgement
    • Medical ethics scenarios and behavioral decision-making

    TestPrep question banks authored

    • UCAT Verbal Reasoning
    • UCAT Situational Judgement
  • Nihan Çelik

    Senior IMAT Biology Instructor / TestPrep QBank Author

    Teaching areas

    IMAT Biology

    Teaching since 2017

    View full profile: Nihan Çelik

    Education

    • B.Sc. (Bachelor’s degree): Ankara Üniversitesi — Biology
    • M.Sc. (Master’s degree): Hacettepe Üniversitesi — Biology

    About

    Nihan Çelik has prepared candidates seeking English-language medical study in Italy for the Biology section of the International Medical Admissions Test (IMAT) since 2017. She teaches question-solving strategies for cell biology, human anatomy, organ-system physiology and cellular energy transformations at the level required for medical admissions.

    Teaching areas and specialisms

    • IMAT Biology and preparation for medical admissions biology questions

    TestPrep question banks authored

    • IMAT Biology
  • Nurseli Tan

    IB Physics Tutor

    Teaching areas

    IB

  • Olivia Davies

    Senior IB & A-Level English Instructor / TestPrep QBank Author

    Teaching areas

    IB English A · IGCSE English Language & Literature · A-Level English Literature · A-Level English Language

    Teaching since 2013

    View full profile: Olivia Davies

    Education

    • B.A. (Bachelor’s degree): University of Manchester — English Literature
    • M.A. (Master’s degree): University of Edinburgh — English Literature

    About

    Olivia Davies has mentored students through demanding literary analysis in IB English A and A-Level and IGCSE courses since 2013. Davies’s lessons develop students’ ability to make connections between texts and analyze literary devices, while supporting their preparation for the highest grade bands in their final examinations.

    Teaching areas and specialisms

    • Connections between texts
    • Analysis of literary devices
    • Literary analysis for IB English A, IGCSE and A-Level

    TestPrep question banks authored

    • IB English A
    • IGCSE English
    • A-Level English
  • Onur Demir

    Senior SSAT Mathematics Instructor

    Teaching areas

    SSAT Math

    Teaching since 2018

    View full profile: Onur Demir

    Education

    • B.Sc. (Bachelor’s degree): Hacettepe Üniversitesi — Mathematics
    • M.Sc. (Master’s degree): İstanbul Teknik Üniversitesi (İTÜ) — Mathematics

    About

    Onur Demir has specialized in SSAT mathematics for international secondary school admission since 2018. He uses age-appropriate teaching methods to help middle school students develop fundamental mathematical skills, logical reasoning and test-taking techniques.

    Teaching areas and specialisms

    • SSAT mathematics
    • Fundamental mathematical skills
    • Logical reasoning
    • Age-appropriate test-taking techniques

    TestPrep question banks authored

    • SSAT Math
  • Onur Kayhan

    IB Visual Arts Tutor

    Teaching areas

    IB

  • Onur Şahin

    UCAT Tutor

    Teaching areas

    UCAT

    Teaching since 2015

    View full profile: Onur Şahin

    About

    Specialist in Decision Making and Situational Judgement.

  • Ozan Kaya

    IMAT Chemistry Tutor

    Teaching areas

    IMAT Chemistry

    Teaching since 2012

    View full profile: Ozan Kaya

    About

    IMAT Chemistry specialist (15 questions) — teaches general chemistry, organic chemistry and biochemistry.

  • Ozan Kıvanç

    IB Business Management Tutor

    Teaching areas

    IB

  • Ozan Tekin

    IB Chemistry Tutor

    Teaching areas

    IB

  • Pelin Doğan

    IB Physics Tutor

    Teaching areas

    IB

  • Pınar Yener

    IB Global Politics Tutor

    Teaching areas

    IB

  • Priya Nair

    English Teacher / Senior UCAT Verbal Reasoning & Situational Judgement Instructor

    Teaching areas

    UCAT Verbal Reasoning · UCAT Situational Judgement

    Teaching since 2014

    View full profile: Priya Nair

    Education

    • B.A. (Bachelor’s degree): University of Delhi — English
    • M.A. (Master’s degree): University of Melbourne — TESOL

    About

    Priya Nair has provided senior-level mentoring in UCAT Verbal Reasoning and Situational Judgement since 2014. Nair helps medical school applicants develop reading comprehension and inference skills, practice professional clinical communication scenarios and explore strategies for resolving professional dilemmas.

    Teaching areas and specialisms

    • Reading comprehension and inference for the UCAT
    • Professional clinical communication scenarios
    • Strategies for resolving professional dilemmas

    TestPrep question banks authored

    • UCAT Verbal Reasoning
    • UCAT Situational Judgement
  • Priya Raghunathan

    Senior AP Statistics Instructor / TestPrep QBank Author

    Teaching areas

    AP Statistics

    Teaching since 2015

    View full profile: Priya Raghunathan

    Education

    • B.Sc. (Bachelor’s degree): University of Mumbai — Statistics
    • M.Sc. (Master’s degree): University of Toronto — Statistics

    About

    Priya Raghunathan has worked as a senior AP Statistics instructor since 2015. Her curriculum expertise covers exploratory data analysis, sampling methods, probability, confidence intervals and hypothesis testing. Her lessons place particular emphasis on statistical interpretation in free-response questions (FRQs) and advanced graph-reading skills.

    Teaching areas and specialisms

    • Data collection
    • Descriptive statistics
    • Probability
    • Inferential statistics
    • Regression analysis

    TestPrep question banks authored

    • AP Statistics
  • Priyanka Desai

    Senior A-Level Biology & IGCSE Biology Instructor / TestPrep QBank Author

    Teaching areas

    A-Level Biology · IGCSE Biology

    Teaching since 2016

    View full profile: Priyanka Desai

    Education

    • B.Sc. (Bachelor’s degree): University of Mumbai — Biology
    • M.Sc. (Master’s degree): University of Toronto — Biology

    About

    Priyanka Desai has used conceptual and visual teaching models in A-Level and IGCSE Biology since 2016. By explaining complex processes such as cellular respiration, photosynthesis in plants and Mendelian inheritance in accessible terms, she helps students strengthen their practical test-taking skills.

    Teaching areas and specialisms

    • Cellular energy transformations, inheritance and practical test-taking

    TestPrep question banks authored

    • A-Level Biology
    • IGCSE Biology
  • Rachel Brown

    Senior IELTS, PTE & TOEFL Instructor / TestPrep QBank Author

    Teaching areas

    IELTS · PTE · TOEFL iBT

    Teaching since 2014

    View full profile: Rachel Brown

    Education

    • B.A. (Bachelor’s degree): University of Leeds — English
    • M.A. (Master’s degree): University of Bristol — TESOL

    About

    Rachel Brown has worked as a senior instructor in the four core language skills assessed by IELTS, PTE and TOEFL—speaking, writing, reading and listening—since 2014. Brown’s teaching focuses on computer-based test formats and automated scoring systems, particularly those used in PTE.

    Teaching areas and specialisms

    • Speaking, writing, reading and listening skills
    • Computer-based examination formats
    • PTE automated scoring systems

    TestPrep question banks authored

  • Rachel Goldberg

    Senior ACT English & Reading Instructor / TestPrep QBank Author

    Teaching areas

    ACT English · ACT Reading

    Teaching since 2016

    View full profile: Rachel Goldberg

    Education

    • B.A. (Bachelor’s degree): University of Toronto — English
    • M.A. (Master’s degree): McGill University — English Language and Literature

    About

    Rachel Goldberg has provided advanced ACT English and Reading coaching since 2016. Her teaching focuses on the analytical interpretation of literary and scientific texts, efficient reading techniques and answer-elimination strategies, with a structured approach designed to help students minimize errors during the examination.

    Teaching areas and specialisms

    • Analysis of literary and scientific texts
    • Efficient reading techniques
    • Answer-elimination strategies
    • Reducing examination errors

    TestPrep question banks authored

    • ACT English & Reading
  • Rebecca Clarke

    Senior IB & A-Level English Instructor / TestPrep QBank Author

    Teaching areas

    IB English A · IGCSE English Language & Literature · A-Level English Literature · A-Level English Language

    Teaching since 2014

    View full profile: Rebecca Clarke

    Education

    • B.A. (Bachelor’s degree): University of Sydney — English Literature
    • M.A. (Master’s degree): University of Melbourne — English Literature

    About

    Rebecca Clarke has guided international school students in literary literacy and critical writing since 2014. Clarke develops analytical methods around the core requirements of IB English A Paper 1 and Paper 2 and the assessment criteria used in IGCSE and A-Level examinations.

    Teaching areas and specialisms

    • Literary literacy and critical writing
    • IB English A Paper 1 and Paper 2
    • IGCSE and A-Level assessment criteria

    TestPrep question banks authored

    • IB English A
    • IGCSE English
    • A-Level English
  • Rina Takahashi

    Senior AP Calculus AB & BC Instructor / TestPrep QBank Author

    Teaching areas

    AP Calculus AB and BC

    Teaching since 2015

    View full profile: Rina Takahashi

    Education

    • B.Sc. (Bachelor’s degree): University of Tsukuba — Mathematics
    • M.Sc. (Master’s degree): University of Sydney — Mathematics

    About

    Rina Takahashi has worked as a senior AP Calculus AB and BC instructor since 2015. Her expertise covers applications of differentiation, advanced integration techniques and differential equations. She also teaches efficient, strategic graphing calculator use in the calculator-permitted sections of AP examinations.

    Teaching areas and specialisms

    • Applications of differentiation and integration
    • Differential equations
    • Taylor and Maclaurin series in AP Calculus BC
    • Graphing calculator use in permitted sections

    TestPrep question banks authored

    • AP Calculus AB
    • AP Calculus BC
  • Rohan Kapoor

    Senior IB Biology Instructor / TestPrep QBank Author

    Teaching areas

    IB Biology

    Teaching since 2014

    View full profile: Rohan Kapoor

    Education

    • B.Sc. (Bachelor’s degree): University of Delhi — Biology
    • M.Sc. (Master’s degree): University of Melbourne — Biology

    About

    Rohan Kapoor has focused on the IB Biology curriculum since 2014. He helps students build conceptual depth in the fundamentals of cell biology, population genetics, ecosystem dynamics and evolutionary theory as they work towards strong IB results.

    Teaching areas and specialisms

    • Molecular evolution, ecology and conceptual depth for IB examinations

    TestPrep question banks authored

    • IB Biology
  • Selçuk Bayar

    IB History Tutor

    Teaching areas

    IB

  • Selin Aydın

    Senior AP Calculus Instructor

    Teaching areas

    AP Calculus AB and BC

    Teaching since 2016

    View full profile: Selin Aydın

    Education

    • B.Sc. (Bachelor’s degree): Hacettepe Üniversitesi — Mathematics
    • M.Sc. (Master’s degree): Orta Doğu Teknik Üniversitesi (ODTÜ) — Mathematics

    About

    Selin Aydın has taught AP Calculus AB and BC since 2016. Her analytical teaching methods build depth in rates of change, limits, differentiation and integration, together with sequence and series convergence in the BC curriculum.

    Teaching areas and specialisms

    • Rates of change and limits
    • Differentiation and integration methods
    • Sequence and series convergence in AP Calculus BC

    TestPrep question banks authored

    • AP Calculus AB
    • AP Calculus BC
  • Selin Çelik

    Senior GMAT & GRE Verbal Instructor / TestPrep QBank Author

    Teaching areas

    GMAT Verbal Reasoning · GRE Verbal Reasoning · GRE Analytical Writing

    Teaching since 2015

    View full profile: Selin Çelik

    Education

    • B.A. (Bachelor’s degree): Hacettepe Üniversitesi — English Language Teaching
    • M.A. (Master’s degree): Orta Doğu Teknik Üniversitesi (ODTÜ) — Applied Linguistics

    About

    Selin Çelik has taught GMAT Verbal Reasoning, GRE Verbal Reasoning and GRE Analytical Writing since 2015. Drawing on her background in applied linguistics, she focuses on interpreting the meaning of complex texts and developing reasoned strategies for Critical Reasoning and Reading Comprehension questions.

    Teaching areas and specialisms

    • Interpreting complex texts
    • Critical Reasoning
    • Reading Comprehension
    • Applied linguistics

    TestPrep question banks authored

  • Selin Uzun

    Senior SSAT Verbal & Reading Instructor / TestPrep QBank Author

    Teaching areas

    SSAT Verbal · SSAT Reading

    Teaching since 2017

    View full profile: Selin Uzun

    Education

    • B.A. (Bachelor’s degree): Yıldız Teknik Üniversitesi — English Language Teaching
    • M.A. (Master’s degree): Orta Doğu Teknik Üniversitesi (ODTÜ) — English Language Teaching

    About

    Selin Uzun has worked as a senior instructor in the verbal areas of the SSAT since 2017. Her approach develops students’ fundamental reading and language skills to meet international academic expectations, while helping them manage examination stress and use their time effectively.

    Teaching areas and specialisms

    • Fundamental reading and language skills
    • SSAT verbal preparation
    • Examination stress and time management

    TestPrep question banks authored

    • SSAT
  • Selin Yıldız

    AP Microeconomics & Macroeconomics Tutor

    Teaching areas

    AP Microeconomics · AP Macroeconomics

    Teaching since 2012

    View full profile: Selin Yıldız

    About

    Specialist in AP Microeconomics and AP Macroeconomics.

  • Sena Karabulut

    IB Visual Arts Tutor

    Teaching areas

    IB

  • Sercan Bozkurt

    IB Physics Tutor

    Teaching areas

    IB

  • Sevcan Eroğlu

    IB Turkish (Translation) Tutor

    Teaching areas

    IB

  • Sevgi Karahasan

    IB Exam Camp Tutor

    Teaching areas

    IB

  • Sezen Aktaş

    IB Internal Assessment Tutor

    Teaching areas

    IB

  • Simon Clarke

    IGCSE Physics Tutor

    Teaching areas

    IGCSE Physics

    Teaching since 2015

    View full profile: Simon Clarke

    About

    IGCSE Physics specialist — experienced in problem solving and practical skills preparation.

  • Sinan Eren

    Senior SSAT Verbal & Reading Instructor / TestPrep QBank Author

    Teaching areas

    SSAT Verbal · SSAT Reading

    Teaching since 2015

    View full profile: Sinan Eren

    Education

    • B.A. (Bachelor’s degree): Ankara Üniversitesi — English Language and Literature
    • M.A. (Master’s degree): Boğaziçi Üniversitesi — English Language and Literature

    About

    Sinan Eren has worked as a senior SSAT Verbal and Reading instructor since 2015. His programs focus on analyzing literary texts, inferring meaning from context and using tailored memorization techniques and reasoning patterns to address the SSAT’s emphasis on vocabulary.

    Teaching areas and specialisms

    • Literary text analysis
    • Inferring meaning from context
    • SSAT vocabulary practice
    • Memorisation and reasoning methods

    TestPrep question banks authored

    • SSAT
  • Sofia Almeida

    Senior IB Biology Instructor / TestPrep QBank Author

    Teaching areas

    IB Biology

    Teaching since 2016

    View full profile: Sofia Almeida

    Education

    • B.Sc. (Bachelor’s degree): University of Lisbon — Biology
    • M.Sc. (Master’s degree): University of Barcelona — Biology

    About

    Sofia Almeida has mentored International Baccalaureate Biology students since 2016. Drawing on IB assessment criteria, she teaches approaches to forming experimental hypotheses and analytically matching and interpreting data sets.

    Teaching areas and specialisms

    • IB experimental report structure and strategic optional questions

    TestPrep question banks authored

    • IB Biology
  • Sofia Petrova

    Senior GMAT & GRE Quant / Data Insights Instructor & Question Bank Author

    Teaching areas

    GMAT Quantitative Reasoning · GMAT Data Insights · GRE Quantitative Reasoning

    Teaching since 2015

    View full profile: Sofia Petrova

    Education

    • B.Sc. (Bachelor’s degree): Sofia University — Mathematics
    • M.Sc. (Master’s degree): University of Groningen — Mathematics

    About

    Sofia Petrova has worked as a senior GMAT and GRE quantitative instructor since 2015. She also contributes to data analysis within the TestPrep ecosystem, developing original question formats and solution strategies for Multi-Source Reasoning and Table Analysis in GMAT Data Insights.

    Teaching areas and specialisms

    • GMAT Quant: arithmetic, algebra and Problem Solving
    • GRE Quant: geometry, Quantitative Comparison, Problem Solving and Numeric Entry
    • GMAT Data Insights: Multi-Source Reasoning, Table Analysis, Graphics Interpretation and Two-Part Analysis

    TestPrep question banks authored

  • Sophie Carter

    Senior LNAT Instructor / TestPrep QBank Author

    Teaching areas

    LNAT Multiple-Choice Analysis · LNAT Critical Essay Writing

    Teaching since 2015

    View full profile: Sophie Carter

    Education

    • B.A. (Bachelor’s degree): University of Manchester — Law
    • M.A. (Master’s degree): University of Edinburgh — Law

    About

    Sophie Carter has taught LNAT preparation since 2015, supporting applicants to leading law schools in the United Kingdom. Carter develops candidates’ critical thinking, argument analysis and inference skills, helping them prepare for the multiple-choice and essay sections of the National Admissions Test for Law.

    Teaching areas and specialisms

    • Analysis of LNAT multiple-choice questions
    • Critical thinking and logical inference
    • Critical essay writing for the LNAT

    TestPrep question banks authored

    • LNAT
  • Tarık Akar

    IB History Tutor

    Teaching areas

    IB

  • Tarkan Erol

    IB Computer Science Tutor

    Teaching areas

    IB

  • Tergel Gantulga

    Senior IELTS Instructor / TestPrep QBank Author

    Teaching areas

    IELTS Academic · IELTS General Training

    Teaching since 2016

    View full profile: Tergel Gantulga

    Education

    • B.A. (Bachelor’s degree): National University of Mongolia — English Language
    • M.A. (Master’s degree): Monash University — TESOL

    About

    Tergel Gantulga has specialized in IELTS Academic and General Training preparation since 2016. Drawing on a thorough understanding of the IELTS assessment criteria and band descriptors, Gantulga applies teaching methods designed to help students work towards higher bands in Writing and Speaking tasks.

    Teaching areas and specialisms

    • IELTS Academic and General Training
    • IELTS band descriptors and assessment criteria
    • IELTS Writing and Speaking tasks

    TestPrep question banks authored

    • IELTS
  • Tolga Akman

    Senior IMAT Mathematics Instructor

    Teaching areas

    IMAT Mathematics

    Teaching since 2017

    View full profile: Tolga Akman

    Education

    • B.Sc. (Bachelor’s degree): Yıldız Teknik Üniversitesi — Mathematics
    • M.Sc. (Master’s degree): Hacettepe Üniversitesi — Mathematics

    About

    Tolga Akman has led IMAT mathematics preparation for applicants to English-taught medical programs in Italy since 2017. He focuses on problem solving suited to the examination’s quantitative reasoning demands and on the mathematical foundations prospective medical students need.

    Teaching areas and specialisms

    • IMAT mathematics
    • Quantitative problem solving
    • Mathematical foundations for medical applicants

    TestPrep question banks authored

    • IMAT Mathematics
  • Tolga Aydoğan

    IB Turkish A Tutor

    Teaching areas

    IB

  • Tolga Şener

    Pre-IB Tutor

    Teaching areas

    IB

  • Tom Harrison

    IB Physics Tutor

    Teaching areas

    IB Physics

    Teaching since 2013

    View full profile: Tom Harrison

    About

    Teaches IB Physics HL/SL. Experienced in mentoring experimental-physics IAs.

  • Tuğçe Albayrak

    IB Philosophy Tutor

    Teaching areas

    IB

  • Tuğçe Şahin

    Senior IMAT Mathematics Instructor

    Teaching areas

    IMAT Mathematics · IMAT Logical Reasoning

    Teaching since 2018

    View full profile: Tuğçe Şahin

    Education

    • B.Sc. (Bachelor’s degree): Yıldız Teknik Üniversitesi — Mathematics
    • M.Sc. (Master’s degree): Boğaziçi Üniversitesi — Mathematics

    About

    Tuğçe Şahin has worked on IMAT mathematics and logical reasoning preparation since 2018. She specializes in efficient problem-solving techniques and tactical approaches that help medical school applicants answer complex mathematics and reasoning questions accurately under time pressure.

    Teaching areas and specialisms

    • IMAT mathematics
    • Logical reasoning
    • Efficient and accurate problem solving

    TestPrep question banks authored

    • IMAT Mathematics
  • Tuna Karaca

    IB Chemistry Tutor

    Teaching areas

    IB

  • Tunahan Demirci

    IB Exam Camp Tutor

    Teaching areas

    IB

  • Tunç Gürkan

    IB Business Management Tutor

    Teaching areas

    IB

  • Tyler Brooks

    Senior SAT & SSAT Verbal Instructor / TestPrep QBank Author

    Teaching areas

    SAT Reading and Writing · SSAT Verbal · SSAT Reading

    Teaching since 2014

    View full profile: Tyler Brooks

    Education

    • B.A. (Bachelor’s degree): University of Washington — English
    • M.A. (Master’s degree): University of British Columbia — English Education

    About

    Tyler Brooks has taught verbal preparation for university admission through the SAT and international secondary school admission through the SSAT since 2014. His courses help younger students adapt to test formats, understand SSAT analogies and synonyms, and build a thorough command of reading passages.

    Teaching areas and specialisms

    • SSAT verbal analogies
    • SSAT synonym questions
    • Reading passage analysis
    • Helping younger students adapt to examination formats

    TestPrep question banks authored

  • Volkan Demir

    IB Chemistry Tutor

    Teaching areas

    IB Chemistry

    Teaching since 2015

    View full profile: Volkan Demir

    About

    Teaches IB Chemistry HL/SL. Experienced in IA experimental-design mentoring.

  • Volkan Sezer

    IB Environmental Systems and Societies (ESS) Tutor

    Teaching areas

    IB

  • Yağmur Acar

    Senior IB Biology & AP Biology Instructor / TestPrep QBank Author

    Teaching areas

    IB Biology · AP Biology

    Teaching since 2016

    View full profile: Yağmur Acar

    Education

    • B.Sc. (Bachelor’s degree): Boğaziçi Üniversitesi — Molecular Biology and Genetics
    • M.Sc. (Master’s degree): Koç Üniversitesi — Molecular Biology and Genetics

    About

    Yağmur Acar has mentored students preparing for IB and AP Biology since 2016, drawing on her molecular biology studies at universities in Türkiye. She helps students analyze advanced inheritance, biochemical reactions and cellular signalling mechanisms covered in Advanced Placement and International Baccalaureate examinations.

    Teaching areas and specialisms

    • Advanced genetics, biochemistry and shared AP/IB exam strategies

    TestPrep question banks authored

    • IB Biology
    • AP Biology
  • Yasemin Polat

    AP Chemistry Tutor

    Teaching areas

    AP Chemistry

    Teaching since 2016

    View full profile: Yasemin Polat

    About

    Uses a laboratory-based teaching approach for AP Chemistry.

  • Yiğit Karaca

    IB Computer Science Tutor

    Teaching areas

    IB

  • Yusuf Aydın

    IB Economics Tutor

    Teaching areas

    IB

  • Zeynep Aksoy

    Senior SAT & ACT Mathematics and ACT Science Instructor

    Teaching areas

    SAT Mathematics · ACT Mathematics · ACT Science

    Teaching since 2016

    View full profile: Zeynep Aksoy

    Education

    • B.Sc. (Bachelor’s degree): Hacettepe Üniversitesi — Mathematics
    • M.Sc. (Master’s degree): Bilkent Üniversitesi — Mathematics

    About

    Zeynep Aksoy has helped SAT and ACT students develop analytical thinking and efficient problem-solving skills since 2016. Known for integrated data-interpretation strategies across ACT Science and mathematics, she works to strengthen candidates’ scientific literacy and graph-analysis skills.

    Teaching areas and specialisms

    • Analytical thinking
    • Efficient problem solving
    • Data interpretation in ACT Science and mathematics
    • Scientific literacy and graph analysis

    TestPrep question banks authored

  • Zeynep Karaca

    IB Economics Tutor

    Teaching areas

    IB

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