- In this activity, learners use a hand-made protractor to measure angles they find in playground equipment. Learners will observe that angle measurements do not change with distance, because they are distance invariant, or constant. Note: The "Pocket Protractor" activity should be done ahead as a separate activity (see related resource), but a standard protractor can be used as a substitute.
- Upper Primary, High School
- Grade 4
- Material Type:
- Exploratorium, Gordon and Betty Moore Foundation, National Science Foundation, The Exploratorium
- Date Added:
- Creative Commons Attribution Non-Commercial Share Alike
- Media Format:
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