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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 math lesson, learners rotate through various centers while comparing and ordering objects according to length.

In this math lesson, learners participate in several activities where they apply measurement skills.

In this activity, young learners use different-sized paper 'caterpillars' and various household items to predict and measure their height.