Making 10

This week during math we focused quite a bit on making the number 10. We created different visual representations paired with our number sentences to show the different facts to 10. As you will see in some of the photos below, some number sentences are arranged with either the missing number or the sum in different positions. It is important for students to see that, with addition, the order of numbers in a number sentence can be rearranged without changing the sum. It is also helpful for students to work with number sentences both beginning and ending with the sum to reinforce the idea that the sum can come on either side of the equation (for example, 10=4+6, 4+6=10). We also spent time discussing what we call "turn around facts" this week and practiced identifying the turn around facts for each number sentence we created. (turn around facts may also be known as the commutative property of addition, an example being 4+6 and 6+4). Tomorrow we will discuss how we have created balanced equations, balancing the numbers across the equals sign (6+4=10 is balanced because it has 10 on each side of the = sign).

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