Teach symmetry, perimeter, area, surface area and volume with this innovative set of eight Folding Geometric Shapes™ and 10 Large Geometric Shapes. Each folding shape can lie flat, allowing for illustration of a three-dimensional shape's two-dimensional properties using Large Geometric Shapes as models. Features a cylinder, square pyramid, cube, rectangular prism, cone, hexagonal prism, triangular pyramid, triangular prism, sphere and hemisphere. Folding shapes come with clear plastics castings. Shapes in both formats measure 3". Set includes Teaching Notes.