Grades 2 & up. Perfect for hands-on learning and illustrative teaching of area, volume, surface area-nets, symmetry and perimeter. This 16 piece set includes 8 transparent shapes and 8 folding shapes. These 2-in-1 geometric shapes show both 2-dimensional and 3-dimensional solids. Each shape is in both fold-out net form (shows 2 dimensions and a clear plastic casing shows 3 dimensions). Includes cylinder, square pyramid, cube, rectangular prism, cone, hexagonal prism, triangular pyramid and triangular prism. Shapes are 3" in height.