I wrote numbers on the center circle of the snowmen and had the pom poms ready to go for counting when Big Sister came home from school one afternoon. I showed her how the snowmen look like the circles that come home on her math worksheets. Together, we counted out pom poms to make the numbers on each snowman.
Composing Numbers: Kindergarten Math
Decomposing Numbers: Kindergarten Math
Decomposing numbers is just the opposite. We worked on taking apart the numbers and exploring how many ways we could take apart the 13 pom poms. We started with the 13 pom poms in a pile on the table. Big Sister grabbed a handful and put them in one of the circles. She then counted how many were left over. She put the remainder into the other circle of the Styrofoam snowman.
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