Area of a composite figure (Math Activity) - Teacher Advisor With Watson

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Application Problem

Area of a composite figure

EngageNY5 min(s)

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Problem Set

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Find the Area

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1 Content Standard is aligned with this activity

3.MD.C.7.D

Major StandardsSupporting StandardsAdditional Standards

Standard 3.MD.C.7.D

Recognize area as additive. Find areas of rectilinear figures by decomposing them into non-overlapping rectangles and adding the areas of the non-overlapping parts, applying this technique to solve real world problems.

Part of Major Cluster 3.MD.C

Prerequisites for 3.MD.C.7.D

3rd Grade

Recognize area as an attribute of plane figures and understand concepts of area measurement.

A square with side length 1 unit, called "a unit square," is said to have "one square unit" of area, and can be used to measure area.

A plane figure which can be covered without gaps or overlaps by n unit squares is said to have an area of n square units.

Use tiling to show in a concrete case that the area of a rectangle with whole-number side lengths a and b + c is the sum of a x b and a x c. Use area models to represent the distributive property in mathematical reasoning.