At 'Number School' the climbing frame is asked to make itself into various shapes - a cube, a triangular prism, a square-based pyramid and a regular tetrahedron. The properties of the shapes are described.

This clip could be used at the start of a lesson on the properties of 3D shapes, as a plenary at the end of a lesson or to aid the revision of vocabulary associated with the properties of shapes. Children could use construction kits or art straws to construct 3D shapes. They could be given challenges, eg make a shape with six edges. The challenges could specify more properties as the children become more confident, for example, make a shape with eight edges and eight vertices. Children could be asked to name the shapes