3, Lesson 9, Unit 3, Grade 7, OpenUp icon
Instructional Activity

Comparing Areas Made of Circles

Lesson 9. Unit 3. Grade 7 Open Up Resources

Open Up Resources20 min(s)

This Instructional Activity is a part of the Lesson 9, Unit 3, Grade 7. The purpose of this activity is for students to find the areas of regions involving different-sized circles and compare the strategies used. The first question introduces subtraction as a strategy to find the area around the outside of a circle. The second question introduces division to find the area of fractions of a circle.

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