Lesson Plan

Finding Area: What Information Do I Need?

You need the length and the width to find the area of a rectangle or square, but what if one piece of information is missing? Use this lesson alongside *What's My Area?* or on its own.
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This lesson can be used as a pre-lesson for the What's My Area? lesson plan.
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This lesson can be used as a pre-lesson for the What's My Area? lesson plan.

Objectives

Academic

Students will be able to solve for the area of a rectangle or square.

Language

Students will be able to explain how to find the area of rectangles and squares using transition words and sentence starters.

Introduction

(3 minutes)
Find the Area of a Rectangle: Level 1Area Information Gap CardsTeach Background Knowledge TemplateWrite Student-Facing Language Objectives ReferenceVocabulary Cards: Finding AreaGlossary: Finding Area
  • Pose a real-world problem with information gaps and have students Think-Pair-Share about what other information they need in order to solve it. (e.g., I have a birthday party to plan, and I want to make sure each kid gets two treats. The party starts at 4 p.m. How many treats do I need to make?)
  • Instruct students to think about their plan for how to solve it or what additional information they need to solve the problem. Then, have them turn and talk to a partner about their thoughts. Invite the group to share out.
  • Inform learners that you provided a problem, but you did not share all of the information. If you shared how many kids were coming to the party, you'd be able to find the answer.