CPM Student Tutorials

MC2 2.2.1: 2-45 Key-Lock Puzzle (CPM & Videos)

Updated Jul 09, 2015

1. Key-Lock eTool:

  • Choose between triangle and key.
  • Click the Gear to create puzzles and save.

2. The left tray records all rigid transformation steps!

3. Intro Problems:

  • Drag to translate (or)
  • Click on the translate button in the tray.  Choose the desired translation.
  • Click the "?" for complete instructions.

4. When the key is placed in the key hole correctly, the student is congratulated!

5. Wall problems: Each of these have at least one wall which cannot be bumped or crossed.

6. Star Problems: These are the most challenging.

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