Here are tutorial videos of the unit:
solving systems of linear equations: http://youtu.be/YMdpE8cAAis
solving systems of linear equations: http://youtu.be/K9EgHwDgW68
quadratic formula: https://www.youtube.com/watch?v=4yiwrQKqj9M&feature=youtu.be
completing the square: https://www.youtube.com/watch?v=cV-aYEJm8Hg&feature=youtu.be
properties of exponents: https://www.youtube.com/watch?v=s3O3lhnkq88
polynomial operations: https://www.youtube.com/watch?v=VuLTWYIGPa0
factoring: https://www.youtube.com/watch?v=1tL8CYi_mE8&feature=youtu.be
factoring bottoms up and grouping: https://www.youtube.com/watch?v=FeBYZ_N-QTI&feature=youtu.be
solving by factoring: https://www.youtube.com/watch?v=N6eFrMdIb0k&feature=youtu.be
solving polynomial equations by factoring: https://www.youtube.com/watch?v=Dj_51JSMdZk
solving polynomial equations by factoring: https://www.youtube.com/watch?v=azv8uRW7-ho&feature=youtu.be
simplifying nth root: http://www.youtube.com/watch?v=va7WUdLyq0I
simplifying radicals: http://www.youtube.com/watch?v=JUTFUNdD8rM
radical operations: http://www.youtube.com/watch?v=BbZdnZnjH7Q