Open Educational Resources (OER) are digital materials that can be re-used or re-purpose for teaching, learning, and research. They are made available free through open licenses. OER include full courses, course materials, modules, textbooks, streaming videos, tests, software, and any other tools, materials, or techniques used to support access to knowledge. is one of the growing movements in education. The below infographic, created by Course Hero, shows the recent history of Open Educational Resources.