186-191
2-U.3 Count vertices, edges, and faces
2-U.4 Compare vertices, edges, and faces
2-U.5 Identify faces of three-dimensional shapes
2-U.6 Identify shapes traced from solids
2-W.1 Equal parts
2-W.2 Halves
2-W.3 Thirds
2-W.4 Fourths
Khan Academy: Mappers
Khan Academy: Recognizing Parts of 3D Shapes
Khan Academy: Equal Parts of Shapes
