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In this activity, learners discover that they can modify a regular piece of paper so that it's large enough for them to walk through!

In this activity, learners build a 1:140 "scale model" of NASA's X-33 Reusable Launch Vehicle (RLV) Technology Demonstrator, and investigate how the model dimensions compare to the real vehicle.

In this activity, learners will predict the size of a giant scale model of a comb or other rectangular object, then make one. If you tripled the size of a dollar bill, could you sit on it?

In this activity, learners take a turn contributing a closed figure made of six squares to a large grid; each must be different from all the others on the grid so far.

Learners make a counting/estimating jar to exchange with friends or bring home.

In this activity, learners complete simple exercises to investigate the relationship between force, area and pressure and their effects on materials.

In this math activity, learners build Peppy the dog the best trail and park for running around.

Using a real-size sketch of a baby elephant's footprint, learners estimate, measure and record the width (diameter) and outside edge length (perimeter or circumference) of the footprint.

In this math lesson, learners practice estimation and measurement skills as they move from station to station calculating length, volume, weight, and area.

In this activity, learners slide shapes to create unusual tiled patterns.