Sophia Learning
Sophia: Rewriting Linear Equations in Slope Intercept Form
This tutorial explores how to rewrite an equation in standard form to slope-intercept form. It includes a detailed example and a short quiz follows to test students' understanding of the skill.
Loyola University Chicago
Math Flix: Variables: Properties
This QuickTime movie provides excellent explanations of the Distributive, Commutative, and Associative Properties using variables with examples. As you watch and listen to the teacher and student interact it helps clarify the thinking...
Mucho Math
Algebra2go: The Associative and Commutative Properties of Addition
Associative and Commutative properties of addition are demonstrated. Adding a negative number is briefly mentioned in this video.
Khan Academy
Khan Academy: Arithmetic Properties: Commutative Law of Addition
This video explains the commutative law of addition. Practice problems are available. [1:40]