Today I’m going to teach you that when you split or separate a larger amount like 10 pieces of gum into equal smaller amounts, we call this division. For example, if I start out with 4 pieces of gum, but have to split it with my sister, how many pieces would we each get? Think aloud, “Well, I know my sister and I are not getting 4 pieces because there are only 4 pieces. It has to be a smaller amount because I can’t have all of them. The amount we each get also has to be equal because we are sharing.” Draw three circles (one on top representing mom with all the gum) two on bottom representing two kids and deal pieces of gum accordingly.
Mathematicians call this division and we use this symbol to show that a larger amount is being separated into smaller equal amounts. Show mathematicians represent this situation as a division equation with symbol.
10 divided by 2 = 5: (Link to multiplication.) I wonder what would happen if my sister changed her mind and gave the 5 pieces of gum back. How many would I have now? What happened to my amount? Hopefully your student will say it was doubled!!! How can we show that as a number sentence?
10 divided by 2 = 5: (Link to multiplication.) I wonder what would happen if my sister changed her mind and gave the 5 pieces of gum back. How many would I have now? What happened to my amount? Hopefully your student will say it was doubled!!! How can we show that as a number sentence?
Consider keeping a math notebook at home to save all the wonderful thinking you and your child do as you explore math together! Enjoy!
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