George Ionitsa

Data Scientist and Olympiad Teacher

Free Trial Lesson

Olympiad Mathematics has shaped my life from the start: I was admitted to the Faculty of Mathematics at Moscow State University without sitting a single entrance exam, thanks to top finishes in competitions such as the Russian Sharygin Geometry Olympiad, the Moscow Mathematical Olympiad and the All-Siberian Open School Olympiad. After seven years teaching Olympiad Maths and Programming - both independently and at various London Schools of Mathematics & Programming - I’ve guided students to everything from Gold in the Primary Maths Challenge to the highest STEP scores and admission to their dream universities.

Alongside teaching, I have worked professionally as a Data Scientist and Quantitative Developer, building models that power real-world decisions in finance and tech. That industry experience lets me weave practical examples into every lesson, showing how the abstract beauty of mathematics and the logic of code drive algorithms, trading systems and everyday apps. My goal is to inspire students not just to solve problems on paper, but to see how those ideas come alive beyond the classroom.

Teacher's Courses

Introduction to Python with Turtle

9+

Introduction to Python with Turtle

This course guides you through the fundamentals of Python programming using an interactive Python library known as Turtle.

Coding in Python

8+

Coding in Python

Python is a versatile and widely-used programming language that is particularly well-suited for beginners. It is known for its simplicity and readability, making it a great choice for students who are new to coding.

Olympiad Mathematics

8+

Olympiad Mathematics

Olympiad Mathematics is a comprehensive course designed to help students win UKMT competitions. It is suitable for high-achieving mathematics students who are looking to take their skills to the next level.

Curriculum Mathematics

8+

Curriculum Mathematics

Our goal at this course is to enhance our students’ mathematical intuition by focusing on a deep understanding of mathematical concepts and to enable them to link different concepts and apply their knowledge to solve mathematical problems to help them to improve their performance at Maths exams.

Introduction to Financial Mathematics

16+

Introduction to Financial Mathematics

Financial Mathematics is a course that teaches students the mathematical principles and techniques needed to understand and analyze financial data. It is an essential subject for anyone interested in pursuing a career in finance or economics, as it helps students develop skills in problem-solving, critical thinking, and data analysis.

Geometry

12+

Geometry

This course encompasses a range of Geometry topics such as coordinate and spatial geometry, introductory trigonometry, angles, parallel lines, congruent and similar triangles, polygons, circles, the Pythagorean Theorem, and more. Emphasis will be placed on reinforcing Algebra skills and enhancing critical thinking through problem-solving in both mathematical and real-world contexts.

Where do you hold your classes?

We hold our classes online or on-site on Saturdays at our branch in Pimlico Academy, London.
You can find our timetable here.

What do you need to start learning online?

For lessons you only need a computer or phone with a microphone, camera and Internet access. Wherever you are - in London, Nottingham, New York or Bali - online lessons will be at hand.

When can I take the trial lesson?

You can get acquainted with the school at any time convenient for you. To do this, just leave a request and sign up for a lesson.

What should I expect from the trial lesson?

The trial lesson is a 30-minute online session designed to get a sense of how your child approaches mathematical thinking and problem solving. (In practice, it often runs a bit longer if the student is engaged!)

We typically explore a range of fun and challenging problems drawn from competitions. We adapt the difficulty based on how the student responds, aiming to make it both accessible and stimulating.

After the session, we’ll have a quick conversation with the parent to share observations and suggest a personalised path forward.

I can't attend class, what should I do?

It is OK, it happens! Students have the opportunity to cancel a lesson up to 8 hours before the scheduled time without loss of payment. So you can reschedule it for a convenient time, and the teacher will have the opportunity to

I don't have much free time, will I have time to study?

Learning can take place at your own pace. We will select a convenient schedule and at any time we will help you change the schedule, take a break or adjust the program.

How long is one lesson?

All classes last 1 hour.

Hear from some of our amazing students who already achieved incredible results with us!

"Olympiad Maths Lessons helped me a lot to get the Gold medal in Junior Maths Challenge"

St. Paul's Student

"Thanks to the 'Data Science' and 'Coding in Python' lessons I got accepted to my dream university."

Data Science Student
Warwick University

"Great courses, which thoroughly explained topics beyond the capability of the GCSE answer sheet. Thanks so much."

Ivan

GCSE Student in Dubai

"Financial Mathematics! Best course to understand Python and Mathematics behind Finance!"

Gleb

VC Investor

"We got silver in PMC! Thanks George!"

Mum of St. Paul's Student

Prepare for the Primary Maths Challenge

"My daughter took a batch of 10 classes with George to understand Python with Turtle. I found George extremely knowledgeable and accessible."

Dad of Latymer School Student

Python with Turtle

Contact us

Email

george@exactscience.co
‍

Phone

Mon-Sun from 8am to 9pm

+44 77 07 547 144

Location

36 Lupus St, Pimlico, London SW1V 3AT

...or ask us anything

Ask about our courses and offerings, and we will help you choose what works best for you.

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