A, Bee, C, Preschool: Building Shapes. Kindergarten readiness: Colored craft sticks are labeled with the number of sides each shape has, ie: 3 purple sticks - triangle. The children will choose a color and build the matching colored shape from the sticks.
A Place Called Kindergarten: math.love this as a center for sorting shapes! (Could also make shape mats all white or black so the children are only using the shape without the color cues after they master it with colors)