∫ f(x) dxe + 1 = 0∑ anP(A|B)limx→0 sin x / x = 1d2y / dx2det(A − λI) = 0∇ · F = 0

PERSONALISED MATHEMATICS PREPARATION

Understand more.
Score higher.

Expert one-to-one tuition and intelligent diagnostics for ambitious students preparing for TMUA, ESAT, A Levels, IB and SAT.

SCROLL TO EXPLORE
01
Christopher Fistouris at Oxford
“The goal is not to memorise more. It is to see the structure sooner.”

YOUR TUTOR

Mathematics taught with
clarity and purpose.

First Class Honours in Mathematics with Statistics from Imperial College London, followed by an MSc in Statistical Science at the University of Oxford.

I have delivered 1,500+ hours of tuition across IB Mathematics, A Levels and competitive admissions preparation, including TMUA, ESAT, SAT and interview work for applicants targeting Oxford, Cambridge and Imperial.

My teaching is diagnostic and problem-led: find the bottleneck, make the idea clean, then train it through increasingly unfamiliar questions until the structure becomes visible quickly under time pressure. I use my own exam-style material, targeted homework and direct feedback rather than repetitive memorisation.

Lessons are supportive but demanding. The aim is faster recognition, cleaner reasoning and stronger mathematical decisions when a question does not look familiar.

5+Years of experience
1,500+Hours taught
5Major programmes

PROGRAMMES

Preparation for every
mathematical ambition.

Choose your programme to explore its diagnostic areas and personalised support.

01T
Admissions test preparation

TMUA

Build speed, precision and mathematical reasoning across both TMUA papers.

02E
Engineering & science admissions

ESAT

Develop the mathematical fluency and scientific problem-solving needed for the ESAT.

03A
Pure, statistics & mechanics

A LEVELS

Find the exact chapters limiting your grade across the full A-level course.

04IB
AA & AI · SL & HL

IB

Syllabus-mapped diagnostics for IB Mathematics, followed by precise revision.

05S
Digital SAT mathematics

SAT

Diagnose content gaps and test strategy across every Digital SAT domain.

DIAGNOSTIC CENTRE

Don’t guess what
to revise next.

TMUA Paper 1, Paper 2 and the combined two-paper diagnostic are live. ESAT, IB, A Levels and SAT diagnostics are currently in development.

T
Admissions test preparation

TMUA diagnostics

TMUA diagnostic live Paper 1 is live at €30 from a 120-question bank, Paper 2 is live at €30 from a 150-question bank, and both papers can be purchased together for €50.

PRICING

Choose the level of
support you need.

Begin with a diagnostic, study individually, or bring your friends and learn together in a focused small group.

Start with clarity

Diagnostic

From €30/ assessment
  • TMUA Paper 1: €30
  • TMUA Paper 2: €30
  • Combined Paper 1 + Paper 2: €50
  • Topic-by-topic analytical report
IB & A Levels

School 1-to-1

€85/ hour
  • 60-minute private online lesson
  • Teaching adapted to your syllabus
  • Original exam-style materials
  • Structured homework after each lesson
Bring your friends. Learn together.

Group tuition

€50–€60/ student / hour
  • Build your own small group with friends
  • IB & A Levels: €50 per student
  • TMUA, ESAT & SAT: €60 per student
  • Solve challenging problems together
  • Shared materials + individual feedback

Diagnostic fee is credited towards your first tutoring booking when booked within seven days.

OXFORD · CAMBRIDGE · IMPERIAL

Mathematics interview
preparation.

One-to-one preparation for highly mathematical university interviews, focused on communicating ideas clearly, responding to unfamiliar problems and developing solutions under questioning.

OxfordCambridgeImperial
PRIVATE INTERVIEW PREPARATION€120/ hour · online
01

Mock interviews

Realistic one-to-one mock interviews with follow-up questions, hints and pressure-testing of your reasoning.

02

~200 specialist questions

Access to an original bank of around 200 mathematics interview-style questions spanning algebra, calculus, geometry, probability, proof and problem solving.

03

Think aloud clearly

Learn how to explain partial ideas, recover from dead ends and turn an interviewer’s prompt into mathematical progress.

04

Targeted feedback

After each mock, receive precise feedback on mathematical reasoning, communication, flexibility and areas to practise next.

Built for mathematics applicants.Interview-style preparation is independent and is not affiliated with, endorsed by, or based on confidential interview material from any university.

BOOK A SESSION

Let’s build your
next step.

Choose an available time for a private online session. If you have completed a diagnostic, your report will shape the lesson from the first minute.

September 2026
MONTUEWEDTHUFRISATSUN
AVAILABLE TIMES · Wed 2 September · ATHENS TIME

Sessions are 60 minutes. Availability is 09:00–23:00 daily, so the final start time is 22:00.

Once confirmed, that time is stored as unavailable so another student cannot book it.

IA REVIEW & FEEDBACK

Submit your Mathematics IA.
Get precise next steps.

Choose personal review or the purpose-built CF Maths AI IA Evaluator. AI feedback is released only after secure €28 payment has been confirmed.

PDF / DOCX uploadAA & AISL & HL rubricEstimated score /20
Rubric usedA · Presentation /4B · Mathematical Communication /4C · Personal Engagement /3D · Reflection /3E · Use of Mathematics /6
PERSONAL REVIEW
€75

Reviewed personally by Christopher

Detailed criterion-by-criterion comments, mathematical communication feedback, structure improvements and practical priorities for the next draft.

  • ✓ Individual written review
  • ✓ Estimated rubric score /20
  • ✓ Criterion-by-criterion feedback
  • ✓ Sent directly to your email
CF MATHS · PURPOSE-BUILT AI TOOL
€28

CF Maths AI IA Evaluator

This is a purpose-built CF Maths tool created specifically for Mathematics IAs—not a generic chatbot. It uses the selected AA/AI and SL/HL context to evaluate the draft against Criteria A–E and produce structured, criterion-specific feedback.

  • ✓ Estimated score /20
  • ✓ Criterion A–E breakdown
  • ✓ Detailed criterion-by-criterion feedback
  • ✓ Mathematical checks + deeper analysis
  • ✓ Top 5 changes + 7-day action plan
  • ✓ Full feedback PDF sent by email
€28 secure paymentPayment unlocks one AI-assisted IA review and the detailed PDF report.

Secure payment is required before the IA is analysed. The evaluator provides formative guidance and an estimated score; it is not an official IB grade.

FREQUENTLY ASKED QUESTIONS

Questions before
you get started.

Everything you need to know about lessons, diagnostics, interview preparation and IA feedback.

Who do you teach?+

I work with students preparing for IB Mathematics, A Levels, TMUA, ESAT and SAT, as well as mathematics applicants preparing for Oxford, Cambridge and Imperial interviews.

How do the TMUA and ESAT diagnostics work?+

You complete a timed assessment drawn from the diagnostic question bank. Your responses are analysed by topic so that future practice can focus on the areas that need the most attention.

What happens in university interview preparation?+

Sessions use unfamiliar mathematics problems, follow-up prompts and mock-interview questioning. The emphasis is on mathematical reasoning, thinking aloud and responding productively to hints.

How does the IA review work?+

Upload a PDF or DOCX, select AA or AI and SL or HL, and provide the email for the report. The AI option uses the purpose-built CF Maths IA Evaluator rather than a generic chatbot; feedback is structured around Criteria A–E and the score remains an estimate, not an official IB mark.

How often should lessons take place?+

The ideal frequency depends on the student, their goals and their progress. Some students benefit from weekly lessons, while others may need more frequent sessions during intensive preparation periods. The schedule can be adjusted as progress is reviewed.

Is homework provided after lessons?+

Definitely. Homework is provided after every session and is selected to reinforce the material covered, address weaknesses identified during the lesson and prepare the student for the next stage of their work.

Is CF Maths affiliated with IB, Oxford, Cambridge, Imperial or the examination boards?+

No. CF Maths is an independent tutoring and preparation service and is not affiliated with or endorsed by these organisations.

STUDENT VOICES

Progress that
students can feel.

The lessons made difficult questions feel structured instead of intimidating. I became much more confident under time pressure.

Illustrative student voice · TMUA

I stopped memorising methods and started understanding why they worked. That completely changed how I approached unfamiliar problems.

Illustrative student voice · IB Mathematics HL

The diagnostic showed exactly where I was losing marks, and the revision plan made every session feel purposeful.

Illustrative student voice · A-Level Mathematics

The problem sets were harder than my school work, but that made the real exam feel far more manageable.

Illustrative student voice · Admissions

I always knew what to improve next. The combination of explanations, homework and feedback kept me progressing every week.

Illustrative student voice · SAT Mathematics

The lessons made difficult questions feel structured instead of intimidating. I became much more confident under time pressure.

Illustrative student voice · TMUA

I stopped memorising methods and started understanding why they worked. That completely changed how I approached unfamiliar problems.

Illustrative student voice · IB Mathematics HL

The diagnostic showed exactly where I was losing marks, and the revision plan made every session feel purposeful.

Illustrative student voice · A-Level Mathematics

The problem sets were harder than my school work, but that made the real exam feel far more manageable.

Illustrative student voice · Admissions

I always knew what to improve next. The combination of explanations, homework and feedback kept me progressing every week.

Illustrative student voice · SAT Mathematics
UNIVERSITIES IN THE ADMISSIONS LANDSCAPE

Preparation for ambitious applicants targeting leading UK and US universities.

Oxford logoOxford
Cambridge logoCambridge
Imperial logoImperial
LSE logoLSE
UCL logoUCL
Harvard logoHarvard
Princeton logoPrinceton
MIT logoMIT
Yale logoYale
UC Berkeley logoUC Berkeley
University names are shown for context only. CF Maths is independent and is not affiliated with or endorsed by these institutions.