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

In this activity, learners use their feet to estimate distances. Learners calculate the distance of one step in centimeters by measuring 10 steps at a time to reduce measurement error.

In this activity, learners use a hand-made protractor to measure angles they find in playground equipment.

In this activity, learners build a tool called an inclinometer that can find the height of any distant object, from a tree to the North Star.

Yes, you can weigh your car by figuring out your wheel's tire pressure combined with the "tire's footprint." You'll need someone with a car, driver's license, and safety in mind.

In this math activity, learners observe and sketch cracking patterns in pavement.

In this activity, learners discover that our hands are not reliable thermometers.