Composed of 9 wooden shapes, 3 wooden bases and 18 double-sided cardboard squares. You have to match the corresponding wooden shape to the board. Then look for a cardboard square that matches the adjacent sides of the wooden piece to observe how the shadow is cast from a different angle. 3D Shapes & Shadows is designed to familiarize children with the relationship between concrete 3D geometric shapes and the 2D shadows that they project. This helps form the basis of mathematics and drawing.