The document discusses Open Educational Resources (OER). It defines OER as educational materials that are in the public domain or have an open license, allowing anyone to legally and freely copy, use, adapt and re-share them. Some examples of OER include presentations, podcasts, syllabi, images, lesson plans, lecture videos, and textbooks. OER offer benefits such as reducing production and distribution costs for education and increasing access to learning resources globally. The document provides information about OER over several slides as part of a course on foundations of open education and OER repositories.