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Discussion for College Algebra
Corrie Bergeron (Content Developer/Author)
An outstanding gift to Algebra, Trig, and Precalculus students. This high-quality, rigorous text has been adopted nationwide and even overseas. The authors were honored by the Ohio State legislature for their contribution. The forms the centerpiece of the Ohio's Scaffold to the Stars, an EDUCAUSE Next Generation Learning Challenges Wave I grant.
The complete text and its source code (including all LaTeX code for all the equations and graphs) is freely available under a Creative Commons BY-NC-SA license.
The book is now in its 3rd edition (Fall 2011). There is also a YouTube channel with over 100 videos: http://www.youtube.com/playlist?list=PL953A3729B0E03AAA