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In this activity, learners use their hands as tools for indirect measurement.

This activity is designed to let learners measure their reaction time or response time to something they see.

In this activity, learners investigate whether more people are squares or rectangles. People with similarly sized heights and arm spans are classified as squares.

This activity introduces the idea that computer scientists measure information by how "surprising" a message is.

In this activity, learners use basic measurements of the Earth and pieces of rock and iron to estimate the mass of the Earth.

Create a “Find Someone” list, with about 10 items, each containing a shape, number, or measurement. Can you find someone in the group with hair about 4 inches long? Someone wearing parallel lines?

In this activity, learners get hands-on experience with ratios and scaling while making their own jewelry out of recycled plastic containers.

In this activity, learners work in groups to design a parachute out of household items that keeps an egg secure when dropped from a certain height.