This includes a 2 page document. The first page has the definition of a polygon and encourages kids to draw example. The next page has various shapes and asks students to circle the polygons. Afterwards, lead a discussion talking about what makes a polygon a polygon. Fits standard: CCSS.MATH.CONTENT.1.G.A.1
Distinguish between defining attributes (e.g., triangles are closed and three-sided) versus non-defining attributes (e.g., color, orientation, overall size); build and draw shapes to possess defining attributes.