Mathematics

What geometric shapes can you find on the playground?

What happens to a cylinder when you scale it up?

This card game is a little like a puzzle. You and your opponents all try to find solutions to the puzzle���and the one who finds the most solutions wins!

Make a tool that lets you measure how tall a building is or how high a rocket flies.

Launch a rocket with a plastic pop bottle and use Height Site to figure out how high it flies.

Use the numbers on four cards to make up equations that equal the number on a fifth card.

Do a card trick that's guaranteed to make you look like a mind reader.

It's easy to fold a sheet of paper in half. But can you fold a sheet of paper in half ten times?

Explore the strangest of strange attractors, the Lorenz butterfly.

Learn to count like the Maya by studying one of their ancient stone documents.

Did you know the Maya used two calendars? How did they know when to plan their big New Year's parties?