Summary
Learn about adding and subtracting within 20 using counting strategies, and solve word problems involving addition & subtraction.
Viewer safety
All ages
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Teaching resources
Discussion questions
A few questions to talk through after watching Add & Subtract Within 20:
- Where in the video did the idea of add & subtract within 20 first "click" for you?
- Can you walk a partner through one of the examples in your own words?
- Where might you use add & subtract within 20 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 add & subtract within 20 means.
- Draw or write one example of your own, then check it against the video.