Summary
Learn about calculating the perimeter of a variety of 2-D shapes, and finding the measure of a missing side length of a figure.
Viewer safety
Ages 7+
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Teaching resources
Discussion questions
A few questions to talk through after watching Introduction to Perimeter:
- Where in the video did the idea of introduction to perimeter first "click" for you?
- Can you walk a partner through one of the examples in your own words?
- Where might you use introduction to perimeter outside of math class?
- What part would you want to see one more time, and why?
Quick work-a-long
Try it:
- In one sentence, tell a neighbor what introduction to perimeter means.
- Draw or write one example of your own, then check it against the video.


