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Lesson Plan

Illustrative Mathematics: 8.g Circle Sandwich

Curated by ACT

Eighth graders are presented with a drawing of a large square inscribed by a circle which is itself inscribed by a second square. They are asked to find the area of the circle outside the smaller square and compare it to the area of the larger square that is also outside the smaller square. Aligns with 8.G.B.7 and 8.G.A.2.

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CCSS: Designed
Concepts
area
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Additional Tags
inscribed shapes, 8.g.a.2, 8.g.b.7, cc by-nc-sa 4.0, circle sandwich, creative commons attribution-noncommercial-sharealike 4.0, illustrative mathematics, area of 2d shapes, circle, square, triangle, perimeter and area of squares, perimeter and area of triangles
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Classroom Considerations
  • Knovation Readability Score: 4 (1 low difficulty, 5 high difficulty)
  • The intended use for this resource is Instructional|practice
Common Core
8.G.A.2 8.G.B.7