1.G.A.1

Distinguish between defining attributes (triangles are closed and 3 sided) versus non-defining attributes (color, orientation, overall size) for two-dimensional shapes; build and draw shapes that possess defining attributes.

Example Problems
Are both trapezoids and parallelograms quadrilaterals?
Do polygons have more than 2 sides?
Are circles and octagons both polygons?
Goblins

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