Videos, examples, and solutions to help Grade 3 students learn how to use a line plot to record the number of rectangles constructed in Lessons 20 and 21.
Common Core Standards: 3.MD.4, 3.MD.8, 3.G.1
Plans and Worksheets for Grade 3
Plans and Worksheets for all Grades
Lessons for Grade 3
Common Core For Grade 3
New York State Common Core Math Grade 3, Module 7, Lesson 22
Download the Worksheets for Grade 3, Module 7, lesson 22 (pdf)
Lesson 22 Homework
1. The following line plot shows the number of rectangles a student made using square unit tiles. Use the
line plot to answer the questions below.
a. Why are all of the perimeter measurements even? Do all rectangles have even perimeters?
b. Explain the pattern in the line plot. What types of side lengths make this pattern possible?
c. How many X’s would you draw for a perimeter of 32? Explain your answer.
2. Luis uses unit square tiles to build a rectangle with a perimeter of 24 inches. Does knowing this help him
find the number of rectangles he can build with an area of 24 square inches? Why or why not?
3. Esperanza makes a rectangle with a piece of string. She says the perimeter of her rectangle is 33
centimeters. Explain how it’s possible for her rectangle to have an odd perimeter.
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