Math Adventures

A hotel with infinite rooms is full. Can it still fit one more guest? An infinite bus full?

A secret pattern of numbers hides inside flowers, pinecones, seashells — even galaxies.

A 2,500-year-old rule about triangles. Two little squares always fit inside the big one.

Eight light bulbs, on or off. That's the entire secret of how every computer works.

Six puzzles with apples, oranges and a scale. Plot twist — you're doing real algebra.

Watch the Sieve of Eratosthenes catch all the primes. Every other number is built from them.