These number sentence components are designed to be used with the commutative property of addition lesson as a hands on and interactive way for students to model and act out how changing the order of the addends does not change the sum. Have a student stand up front and hold each number sentence component.
These flip flops are designed to be used with the commutative property of addition lesson as a hands on, visual, and interactive way for students to model and act out how changing the order of the addends does not change the sum. See lesson plan for details on how to use.