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Curriculum Math 3rd Grade Unit 4: Area Lesson 10

Area

Lesson 10

Math

Unit 4

3rd Grade

Lesson 10 of 14

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In this Lesson

Objective
Standards
Criteria for Success
Tips for Teachers
Anchor Tasks (25–35 min)
Problem Set (15–20 min)
Target Task (5–10 min)
Additional Practice

Objective

Lesson Notes

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Compose and decompose a rectangle, seeing and making use of the idea that the sum of the areas of the decomposed rectangle is equal to the area of the composed rectangle.

Lesson Map

Topic A: Understanding Concepts of Area

Lesson

Understand that area is an attribute of plane figures that is a measure of how much flat space an object takes up. Find the area of a figure using pattern blocks, which can be used as concrete non-standard units.

Standards

3.MD.C.53.MD.C.6

Lesson

Understand that area is measured using square units. Find the area of a figure using square tiles.

Standards

3.MD.C.53.MD.C.6

Lesson

Find the area of a rectangle by counting unit squares on grids.

Standards

3.MD.C.53.MD.C.6

Lesson

Find the area of a rectangle with incomplete information about its rows and columns of square units.

Standards

3.MD.C.63.MD.C.7.A

Lesson

Find the area of a rectangle that has been superimposed over a grid.

Standards

3.MD.C.63.MD.C.7.A

Lesson

Find the area of a rectangle through multiplication of the side lengths.

Standards

3.MD.C.7.A3.MD.C.7.B

Lesson

Understand standard units for measuring area, including square inches, square centimeters, square feet, and square meters, and choose an appropriate unit to measure the area of various rectangles.

Standards

3.MD.C.6

Lesson

Measure the side lengths of a rectangle to find its area.

Standards

3.MD.C.7.B

Lesson

Solve word problems involving area.

Standards

3.MD.C.7.B

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Topic B: The Distributive Property and Composite Area

Lesson

Compose and decompose a rectangle, seeing and making use of the idea that the sum of the areas of the decomposed rectangle is equal to the area of the composed rectangle.

Standards

3.MD.C.7.C

Lesson

Apply the distributive property as a strategy to find the total area of a large rectangle.

Standards

3.MD.C.7.C

Lesson

Recognize area as additive. Find the area of a composite figure as shown on a grid or with all side lengths labeled.

Standards

3.MD.C.7.D

Lesson

Recognize area as additive. Find the area of a composite figure when not all dimensions are given.