An exercise in finding the area of polygons by decomposing into triangles and composing into rectangles is the focus of this resource. Make several copies of the worksheet for each participant. Ask learners to use colored pencils to highlight recognizable shapes within polygon. Share solutions given in commentary. This is the first resource in a series.

Concepts

area, polygons, 2-d shapes, 2-d, right triangles, triangles

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Additional Tags

area, polygon, right triangle, math

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Pros

• Teaches students to reason abstractly
• A good math visual

Cons

• None

Common Core

6.G.A.1