9, Lesson 21, Unit 6, Grade 7, EngageNY icon
Problem Set

Problem Set

Lesson 21. Unit 6. Grade 7 EngageNY

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This Problem Set is a part of the Lesson 21, Unit 6, Grade 7. In this lesson, students use area models to make an explicit connection between area and algebraic expressions. The lesson opens with a numeric example of a rectangle (a garden) expanding in both dimensions. Students calculate the area of the garden as if it expands in a single dimension, once just in length and then in width, and observe how the areas change with each change in dimension.

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