Unit 1

 Absolute Value

Order of Operations

Angles Unit 5
Complementary Angles
http://math123xyz.com/Nav/Geometry/Angle_Puzzle.php
Supplementary Angles
http://www.mathwarehouse.com/geometry/angle/supplementary-angles.php

Verticle Angles
http://www.mathwarehouse.com/geometry/angle/vertical-angles.php

Equations and Inequalities Unit 4
Video on solving equations with variables on both sides
http://www.brightstorm.com/math/algebra/solving-equations/solving-equations-with-a-variable-on-both-sides

Game- solving equations with variables on both sides

http://www.mathsnet.net/algebra/l4_equation.html