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Overview

In this lesson, Robin Everage works with her 3rd-grade students, deepening their understanding of area and perimeter. The students build on prior work with area, exploring and noticing the relationship between area and perimeter. Robin works with the students to “get into it, manipulate it, and get into some good conversation with each other.” After creating visual representations, the students derive precise equations for area and perimeter. They incorporate some strategies, such as tick marks, that were not explicitly required but had been used in prior lessons.

By watching this lesson, teachers will learn how to challenge students to achieve the following goals:

- Use precise academic language to describe the relationship between area and perimeter (e.g. square units)
- Strategically use tools (tiles, anchor posters) to build arrays as visual representations of both concepts
- Differentiate and justify particular operations, such as multiplication for area and addition for perimeter

Robin has taught elementary school for over twenty years in Polk County, Florida.

See another lesson engaging students in deepening their understanding of area and perimeter: 7th Grade Area and Perimeter.

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