The targeted content for this page is to open up the idea that there are many different kinds of different shapes, for example there are 6 different kinds of Triangles.
http://www.corestandards.org/Math/Content/K/G/A/2/
1. How many different types of triangles do you see?
2. Can you try and make each triangle bigger and smaller?
3. When you make the triangles bigger and smaller, what changes do you see? What stays the same?