A great way to teach preschoolers about shapes, is to include shapes in a craft.
This gives preschoolers the opportunity to get hands on with the shapes.
I love this Thanksgiving Craft. Students make turkey's out of Circles and Triangles.
For preschoolers, you would want to have the shapes already cut out, but Kindergartners or 1st graders could cut out their own shapes before assembling them.
Be sure to add googly eyes for extra fun!
This is a great Thanksgiving craft and working hands on with shapes is great for this age group!