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Angle Hunting
Source Institutions
In this activity, learners use a hand-made protractor to measure angles they find in playground equipment.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-636.gif?itok=nNdYFj4l)
Simple Pop-Up Mechanisms
Source Institutions
In this activity, learners construct three quick and simple mechanisms to start building a pop-up book. Learners fold, cut, and glue paper to make a bird beak, parallelogram, and V-fold.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-533.jpg?itok=fsu_f4be)
Playground Patterns of Cracks
Source Institutions
In this math activity, learners observe and sketch cracking patterns in pavement.
![](/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.