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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 three/four-day lesson, learners calculate perimeters and areas and draw the castle plan to scale.

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 four-day lesson, learners identify three-dimensional forms in castle design, research different parts of the castle with a focus on their uses, and design and enlarge a banner for the great ha

In this activity, learners investigate the relative growth of lengths, areas, and volumes as cylinders are scaled up.

This is an activity (located on page 3 of PDF under Gecko Feet Activity) about modeling a nanoscale phenomenon (gravity-defying gecko feet) with macroscale objects (shoes).

This is an activity (on page 2 of the PDF under Surface Area Activity) about surface area to volume ratio.