Recommended Open Educational Resources for an Undergraduate Course in College Algebra I (PreCalculus I)
These free and open educational resources are designed to meet the needs of students taking College Algebra I. Two OERs are presented here:
1. College Algebra by Jay Abramson, licensed under CC BY.
2. College Algebra by Stitz and Zeager, licensed under CC BY-NC-SA.
Abramson’s textbook is adequate and does satisfy all the requirements of a book of outstanding quality, but College Algebra by Stitz and Zeager contains a wide variety of worked examples and many exercises with solutions, so this second resource can be used as a supplemental textbook.