Describe 3-D objects according to the shape of the faces and the number of edges and vertices...

by identifying the faces, edges and vertices of given 3-D objects, including cubes, spheres, cones, cylinders, pyramids and prisms.

by identifying the shape of the faces of a given 3-D object.

by finding the number of faces, edges and vertices of a given 3-D object.

by making a skeleton of a given 3-D object, and describe how the skeleton is like the 3-D object.

by sorting a given set of 3-D objects by the number of faces, edges or vertices.