Take a look at a sample of the many OER mathematics textbooks available. Search for others in the list of repositories linked here. Or contact a WilmU librarian to help you find what you want.
A list of open textbooks that meet the evaluation criteria set by the AIM editorial board.
MathIsPower4U: 5000+ free mini-lessons and videos covering arithmetic through calculus, differential equations, nursing applications, and statistics.
CK-12: Free online textbooks for K-12, useful in college algebra classes.
StatsPL: Introduction to Statistics text, video, simulations, practice problems, and interactive learning modules use Cerego’s learning platform. NYU's CREATE lab.
Virtual Math Lab: Created by West Texas A&M University, the Virtual Math Lab provides tutorials for College Algebra, Intermediate Algebra, Beginning Algebra, and Math for the Sciences.