From YouTube, produced by MuchoMath
This video discusses the properties of addition. The video startes with solving a simple addition problem using a number line, they then change the order of the problem. This shows the commutative property for addition. Then they show commutative using negative numbers. Then other examples are shown. Then they show problems with parenthesis, which tells the student to do this part first. This shows the associative property for addition. More examples are given. Video is good quality and good for all students as review or initial learning of the concept.