Commutative Law of Addition

Sal explains the commutative law of addition. He adds the number 5+8+5 three different ways. Then he shows that when he adds 5+8+5 in any order the answer will be the same. Note: This video is great, but would be nicely accented with class discussion and class-worked examples.

4 Views 16 Downloads
Resource Details

Grade
2nd - 4th
Subjects
Math
1 more...
Resource Types
Videos
1 more...
Instructional Strategy
Flipped Classroom
Usage Permissions
Creative Commons
BY-NC-SA: 3.0
cc