CPM Teacher Tutorials

CC3 3.1.1: 3-1a & 3-1b Answer eTool (CPM)

Updated Jun 30, 2015

Click on the link below for the “3-1a & 3-1b Answer eTool (CPM)."

1. CC3 3-1a:

This is one possible way to show how one figure is built from the preceding figure.

CC3 3-1a:

2. CC3 3-1b:

  • This is one possible way to show how one figure is built from the preceding figure.
  • Figure 1 looks like it is missing a green tile.  Since the blue tiles are the figure# minus 2, that meant there was a -1 blue tile.  Thus one of the green tiles was discarded.
CC3 3-1b:
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