Unit 7, Lesson 21, Grade 3 icon
Unit 7, Lesson 21

Construct rectangles with a given perimeter using unit squares and determine their areas (Continued)

EngageNY 60 min(s)

In this lesson, students continue finding the possible areas of rectangles with a given perimeter. They use the same strategy as in the previous lesson, dividing the perimeter by 2 to find the sum of the length and width, which leads to possible dimensions and possible areas. Then they discuss the relationship between area and perimeter of a rectangle, reinforcing many of the understandings from the previous two lessons.

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