Mathematics Grade Prototype Curriculum Guide

Initiating Activity: Discuss how many squares make up a 10-by-10-square grid. Present the 10-by-10 base-ten 100 flat and the 10-by-10-squares grid. Emphasize that the two are equal. For purposes of this activity, the students are going to use a representation of the base-ten 100 flat — i.e., a 10-by-10 … ................
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