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In this math activity, learners create their own units of measurement by making noodle rulers. Learners practice estimating and measuring objects using the noodle rulers .

In this activity, learners compare the ancient Egyptian system of measurement, which was based on body lengths, to the customary and metric systems used today.

In this math activity, learners pretend there is a special store that lets you pay for toys by their height in pennies.

In this activity, learners make an astrolabe, a device used for measuring altitude, including the height of objects in the sky.

In this math activity, learners trace their hands and estimate the number of beans that can fit into their hand tracings. Then, learners glue the beans to the tracing to test out their estimations.

In this activity, learners use recycled materials to build a bridge that holds as many potatoes as possible. They investigate weight, height, strength, and measurement as they seek design solutions.

In this math activity, learners pretend there is a special store that lets you pay for toys by their weight in pennies.

In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

In this activity, learners develop an understanding of cylinders and volume as they compare two sizes of popcorn buckets.

In this activity, learners will decide together on a question about how far, long or high the group could reach together.

In this activity, learners use their estimation skills to match the unmarked containers to their amounts.

In this math activity, learners estimate how many pennies are in a jar by predicting and counting handfuls of pennies.

In this activity, learners will build the highest tower they can out of recycled materials.

Choose a recipe to double (or triple, quadruple, or halve). Show everyone the recipe and engage them in figuring out: How much will we need to increase the recipe to feed everyone?

In this meteorology activity, learners construct simple devices to measure the direction and speed of wind.