Support first grade math vocabulary with a reference page divided into three sections—the vocabulary word, its definition, and a picture representation. Terms include number bonds, arrow notation, commutative property and more! 

The instructional activity says it is intended for 4th grade but it is suitable for grades 1-3 as well. The class discusses what it means to add, the commutative property of addition, and mathematical reasoning. This is an exercise in...

In this addition learning exercise, students solve 26 addition problems with 4 addends each. Students use the commutative property of addition to change the order of the addends and to find the sum. The problems are in horizontal format.

In this nice math lesson plan, 1st graders use toy cars, and jelly beans to show the commutative property of addition where a+b=b+a. In this problem solving lesson plan, student groups record equations and arrange their manipulatives. A...