A complete secondary-school course in mathematics and physics.
Built on the ten-year science curriculum led by Andrey Kolmogorov and the rigour of twentieth-century education.
More than 1,500 teaching units and 16,000 exercises form an interconnected body of knowledge, adapted to your progress.
Complete the course to prepare for university entrance examinations and further study in mathematics, science and engineering.
Zoom, pan, and see how knowledge connects.
“School mathematics, and even the beginnings of calculus, can be mastered by ordinary ability — given good guidance or good books.”
— Andrey KolmogorovOne of the Greatest Mathematicians of the 20th Century
What sets it apart
- 01
Rigorous, systematic lessons and exercises written by experts — not generated by AI.
- 02
It locates the weakness itself, instead of patching one problem at a time.
- 03
Unlimited explanation and fresh practice at your own pace, until it is genuinely yours.
- 04
Fill a gap or run ahead — not bound to your school’s timetable.