Transparent, 3D plastic shapes get an update - bold, bright colors! This selection of common geometric shapes offers a concrete way to explore geometry, volume and other measurement concepts. Allows students to relate 2D shapes to 3D solids by examining and comparing the removable bases. Set includes large triangular pyramid, square pyramid, hemisphere, sphere, cone, pentagonal prism, small and large cube, rectangular prism, triangular prism and cylinder. Colorful shapes measure 3 cm or 6 cm. Includes Activity Guide with formulas and interventions. Intended for ages 8 years and up.