Unit 7, Lesson 22, Grade 3 icon
Unit 7, Lesson 22

Use a line plot to record the number of rectangles constructed in prior lessons

EngageNY 60 min(s)

In this lesson, students create a line plot showing the number of rectangles with a given perimeter they created during the previous two lessons. Then they make observations about the data in order to better understand the relationships between side lengths and perimeter. (For example, they notice that all of their rectangles have even perimeters, and determine that this is because they have whole-number side lengths.) Finally, they compare their perimeter line plot with the area line plot from Lesson 19 and draw conclusions about the relationship between area and perimeter of a rectangle.

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