The Skeletal Starter Geo Set doubles as an introductory math manipulative for hands-on discovery of 2-D and 3-D geometry principles. This construction set will improve children’s fine motor skills, as well as develop their creative and problem solving skills. Build two-and-three dimensional structures. Introduces children to basic geometric shapes. Model 2-D shapes, 3-D structures, and inspire imaginative design with 20 double-sided activity cards.