Help sort shapes in a shape factory. Look at examples of shapes to see if they belong in a polygon group, or set. Examine examples of shapes that do not belong in the set. What features do you think ...

Two-dimensional (2D) shapes are completely flat. They cannot be picked up. A polygon is a 2D shape with straight sides that meet at vertices. Polygons have names that show the number of sides they ...

Damaris Rosado-James shows students how to sort shapes by their attributes. Damaris Rosado-James shows students how to sort shapes by their attributes.