Open educational resources (OER) are teaching and learning materials in any medium that are released under an open license that allow free access, use, reuse, and adaptation by others. OER can include individual lessons or modules; supplemental course materials such as presentations, test banks, and handouts; or full-length textbooks.
Library resources (e.g., ebooks, journal articles, videos, etc.) and Digital Rights Management (DRM) free textbooks are other affordable options for course materials.
Here are just some of the benefits of using OER and other affordable materials for your courses: