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Walking Polygons
Source Institutions
In this activity, learners walk the sides and interior angles of various polygons drawn on the playground. As they do so, learners practice rotating clockwise 180° and 360°.
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Solidly Platonic
Source Institutions
In this activity, learners follow simple directions to explore and create platonic solids.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-707.jpg?itok=AZbdx-Ur)
Spinning Cylinder: Make a triangle appear on a spinning wheel
Source Institutions
Spin a short piece of PVC pipe that's been marked up, and watch a triangle appear. Enjoy this optical illusion from the Exploratorium's Science Snack series.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-550.png?itok=d-udyYKX)
Pocket Protractor
Source Institutions
In this activity, learners create angle-measuring devices--protractors--out of paper. Learners follow a series of steps to fold a square sheet of paper into a triangular Pocket Protractor.