4, Lesson 8, Unit 1, Grade 6, OpenUp icon
Instructional Activity

Decomposing a Parallelogram

Lesson 8. Unit 1. Grade 6 Open Up Resources

Open Up Resources25 min(s)

This Instructional Activity is a part of the Lesson 8, Unit 1, Grade 6. By now students have more than one path for finding the area of a triangle. This optional activity offers one more lens for thinking about the relationship between triangles and parallelograms. Previously, students duplicated triangles to compose parallelograms. Here they see that a different set of parallelograms can be created from a triangle, not by duplicating it, but by decomposing it.

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