1.GM.1
Understand the difference between defining attributes (e.g., triangles are closed and three-sided shapes) and non-defining attributes (e.g., color, orientation, overall size), using that understanding to build and draw shapes that exhibit defining attributes.
Example Problems
Are both trapezoids and parallelograms quadrilaterals?
Do polygons have more than 2 sides?
Are circles and octagons both polygons?

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