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Learners set up books with rubber bands stretched between the books. When two identical books are stretched apart and released, they move back toward each other an equal distance.

Put the math of measurement, numbers, and everyday life into improvisational skits.

This activity introduces the idea of "divide and conquer" using a fictitious but serious problem--a pair of dirty socks has accidentally been wrapped in one of the presents that Santa is about to deli

Learners drop two different masses of play dough and observe how long it takes them to hit the ground.

These math posters have questions written on them, such as: How many colors can you name in a minute? or How many seconds can you balance on one foot?

This magic trick is based on how computers detect and correct data errors.