Polygraph: Pick My Prism or Pyramid

Suspects include 3D renderings of various prisms and pyramids, along with nets for many of the same figures. Use snapshots to share student responses to interstitial questions. Focus on vocabulary such as: prism, pyramid, net, 3D, vertex, face, edge, triangular, square, rectangular, pentagonal, hexagonal... Images courtesy of Illustrative Math Grade 6 Materials.

By Cindy Whitehead