For students from grade 6

Math isn't hard! Let's explore together.

Every lesson explains step by step with pictures, clear examples, and a Try It section so you can practice on your own.

$$e^{i\pi} + 1 = 0$$

Euler's identity, often named one of the most beautiful formulas in mathematics.

Topics

Equations, structures, and how symbols work together.

Rates of change, accumulation, and limits, seen through pictures.

Proofs by picture, from familiar theorems to surprising results.

Intuition about chance and the paradoxes that fool us.

Primes, congruences, and Euclid's short proofs.