Open Educational Resources (OER), are online repositories of classes and textbooks. These learning tools can be used free of charge for learning new subjects and skills. Consult the OER resources below.
Open Educational Resources including online courses and textbooks. Provided by a consortium of colleges and universities, including California State University.
Search, browse, and evaluate Open Educational Resources (OER). This collection includes university courses, mini-lessons and simulations, adaptations of existing open works, open textbooks, and K-12 lesson plans, worksheets, and activities.
A collection of free, peer-reviewed, and openly-licensed textbooks from the University of Minnesota. Find textbooks by searching or browsing by subject.