Integers

Absolute Values and Opposites: http://www.youtube.com/watch?v=-AQFWV0AdLE

Adding Integers: http://www.youtube.com/watch?v=9YhPNXwY510

Adding Integers 2: http://www.youtube.com/watch?v=MoMJsFJYD8Y

Exponents: http://www.youtube.com/watch?v=983HSvnIsTU&feature=plcp

Modeling Integer Addition: https://youtu.be/g98_oH4ooqE

Modeling Integer Subtraction with Algebra Chips: https://youtu.be/8LNbcqtYp28

Modeling Integer Subtraction with Number Lines: https://youtu.be/CtkBpIkNPgM

Multiplying and Dividing Integers: https://www.youtube.com/watch?v=K_tPbVPfHgk

Exponents with Negative Bases: https://www.youtube.com/watch?v=qB5PZzmjenI

Order of Operations (OOOps):

https://docs.google.com/a/kcsd96.org/file/d/0B06LXLDzUEpQdlVSWGFzVkJMdU0/edit

Order of Operations 2:

https://www.youtube.com/watch?v=WHTBgwBWlF4

Order of Operations With Tricky Parentheses:

https://youtu.be/karkM5mw0AY

Subtraction: https://www.youtube.com/watch?v=wXVlw3N3hX4