Translating Expressions: http://www.youtube.com/watch?v=g6jeSuHYhyY
Evaluating Expressions: http://www.youtube.com/watch?v=KUW8vNTHPYU
Combining Like Terms: http://www.youtube.com/watch?v=Ks_if4Rw29s
Vocabulary for Expressions: http://www.youtube.com/watch?v=-Z6ANpa10lQ
Distributive Property: http://www.youtube.com/watch?v=u3dexXyyb3c
Evaluating Expressions: http://www.youtube.com/watch?v=KUW8vNTHPYU
Combining Like Terms: http://www.youtube.com/watch?v=Ks_if4Rw29s
Vocabulary for Expressions: http://www.youtube.com/watch?v=-Z6ANpa10lQ
Distributive Property: http://www.youtube.com/watch?v=u3dexXyyb3c