Mathematics

Math is a Superpower

Not formulas to memorize — ideas to discover. Each topic starts with a story and gives you something to actually do.

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Number Theory

Prime Numbers

Every number is either prime — or built from primes. Discover the secret structure of arithmetic with a 2,000-year-old trick.

Start learning →
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Graph Theory

Königsberg Bridges

Can you walk through a city and cross every bridge exactly once? Euler tried — and invented a whole new branch of math in the process.

Try the puzzle →
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Geometry

Shapes & Area

Why does a circle’s area involve π? Why do triangles always add up to 180°? The answers are weirder than you think.

Coming soon
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Probability

Chance & Luck

If you flip a coin 10 times and get heads every time, what are the odds of heads on flip 11? Most people get this wrong.

Coming soon