There is an excellent College Algerva I and College Algebra II open source textbook. It’s very high quality. There is a passable Calculus I and Calculus II op

There is an excellent College Algerva I and College Algebra II open source textbook. It’s very high quality. There is a passable Calculus I and Calculus II open source textbook. I haven’t found any other high quality opens source textbooks for the math courses I teach. Hence I create my own lectures and problem sets. http://www.stitz-zeager.com http://www.stitz-zeager.com open source pre-calculus