VID: Early Mathematics (Pre-K – 2nd)

Modeling Standard Algorithm of Subtraction (within 20) using Decomposition, base ten, and other strategies:

Make a simpler problem: Base ten and decomposing the subtrahend

2 Comments on “VID: Early Mathematics (Pre-K – 2nd)”

  1. April 8, 2013 at 12:35 pm #

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    • April 8, 2013 at 5:07 pm #

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