Lesson plan

# 2. Find the area and perimeter of a plane (FP)

teaches Common Core State Standards CCSS.Math.Content.3.MD.D.8 http://corestandards.org/Math/Content/3/MD/D/8
teaches Common Core State Standards CCSS.Math.Practice.MP1 http://corestandards.org/Math/Practice/MP1
teaches Common Core State Standards CCSS.Math.Practice.MP4 http://corestandards.org/Math/Practice/MP4

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Lesson objective: Find the area and perimeter of a plane.

This lesson helps to build  procedural skill with caluclating the perimeter and area of a plane figure. A rectangle is used here because it provides a predictible process. This work develops students' understanding that perimeter is a linear measure of a shape and can be distinguished from area.

Students engage in Mathematical Practice 4 (model with mathematics) as they demonstrate the area and perimeter of rectangles.

Key vocabulary:

• perimeter
• area
• length
• width
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• 2. Find the area and perimeter of a plane (FP)