FANTASTIC book for teaching the inverse relationships between the numbers in a number sentence. Math Common Core, fact families, inverse relationships, commutative property of addition and subtraction Awesome educational website! http://www.helps4teachers.com
FREE This PowerPoint slide will allow your students to match up the number properties and an example. For instance: They will have one square that says COMMUTATIVE PROPERTY OF ADDITION which they would have to match with the numerical example: 3 + (-5) = -5 + 3. This game includes the Associative Properties, Commutative Properties, Identity Property, Zero Properties, and Additive Inverse Property. I used this game as an entry in my students' interactive math journal.
Summarize: Commutative: the ORDER in which you add or multiply numbers doesn't matter. Associative: how you GROUP the numbers when you add or multiply doesn't matter. Same kid friendly meanings for identity (how the number still sees itself in the mirror), inverse (opposite and upside down), and distributive (break a number apart).
Positive and Negative numbers are added using both the vertical and horizontal number lines; the rules of addition in algebra are introduced, as well, and students apply these rules to calculations. Properties (Closure for addition, commutative, associative, Identity, and inverse) are presented with a discussion as to how these properties relate to operations of addition.