Unit 7, Lesson 10# Decompose quadrilaterals to understand perimeter as the boundary of a shape

EngageNY 60 min(s)

This lesson introduces the concept of perimeter. Students create a wavy tessellation piece by cutting one side of a 2-inch square, and contrast the area and perimeters of the two figures. They determine that the area of the two figures remains the same, but the perimeters are different.