This is the coolest idea from my colleague, Patty. She calls them rock puzzles. It is very simple. You find nice sized, flat rocks. Wrap the rock in a towel and bam! Break a piece or two off with a hammer or another rock!

 

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How to use the rock puzzles:

  • Put four to five “rock puzzles” together in a bag:
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    The children have to find the rock pairs – the pieces that fit together.

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So simple.  So cool!