Teaching Models

Solid Shapes

Plane geometry differs from solid geometry in that the latter concerns itself with the study of shapes of three dimensions. Solid shapes are a subset of space. In this chapter, children will study the faces, edges, and vertices of common solid shapes. A face is a flat surface of a solid shape. An edge is the line segment at which two faces of a solid shape meet. Vertices are the corner points at which edges meet.

Teaching Model 8.4: Classify and Compare Solid Shapes

Houghton Mifflin Math Grade 2