Seeing Solids and Silhouettes (3-D Geometry) (Investigations in Number, Data, and Space)

Students develop spatial visualization skills. They use interlocking cubes to construct buildings from drawings; investigate the shapes of silhouettes projected by geometric solids; and draw silhouettes of cube buildings from different perspectives. Students also create their own toys out of 5,060 interlocking cubes and write instruction booklets for younger children. Suggested pacing: 14 sessions.