4, Lesson 1, Unit 3, Grade 4, EngageNY icon
Fluency Activity

Find the Unknown Factor

Lesson 1. Unit 3. Grade 4 EngageNY

EngageNY4 min(s)

This Fluency Activity is a part of the Lesson 1, Unit 3, Grade 4. In this lesson, students compare the perimeter and area of a rectangle and use formulas to solve for perimeter and area when there is an unknown side length of a rectangle. Finding the unknown factor in isolation prepares students to solve unknown side problems when given the area.

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