Montessori Geometry Solids Nomenclature Cards and Control Booklets are used to help familiarize the child with naming ten 3D geometric solids: sphere, ellipsoid, ovoid, cube, rectangular-based prism, triangular-based prism, cylinder, triangular-based pyramid, rectangular-based pyramid, and cone. This set contains 3 part cards, nomenclature cards, and control booklets with an option for children to print the terms themselves (faint dotted letters) for the following shapes: sphereovoidellipsoidco