Compose two-dimensional shapes (rectangles, squares, trapezoids, triangles, half-circles, and quarter-circles) or three-dimensional shapes (cubes, right rectangular prisms, right circular cones, and right circular cylinders) to create a composite shape, and compose new shapes

Lesson Planning and Activity Resources

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1.G--Interactive games for Geometry

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Lesson from Illustrative Mathematics that creates puzzles to compose and decompose shapes.

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Grade 1 Unit: Understanding Shapes and Fractions
(from Georgia Department of Education)
This unit addresses KCAS 1.G.1-3.
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http://www.commoncoresheets.com/SortedByGrade.php?Sorted=1g2
Worksheet containing problems determining which basic shapes could have created a more complex shape.