OER is the acronym for Open Educational Resources. OER can include textbooks, full courses, course materials, assignments, streaming videos, tests, software, music, images, and more.
According to UNESCO, "Open Educational Resources (OER) are learning, teaching and research materials in any format and medium that reside in the public domain or are under copyright that have been released under an open license, that permit no-cost access, re-use, re-purpose, adaptation and redistribution by others."
The terms "open content" and "open educational resources" describe any copyrightable work (traditionally excluding software, which is described by other terms like "open source") that is either (1) in the public domain or (2) licensed in a manner that provides users with free and perpetual permission to engage in the 5R activities.
Creators often use Creative Commons licenses to clearly define what is and is not allowed.
This explanation was created by David Wiley and adapted by Western Technical College under a Creative Commons Attribution 4.0 International license.
Openly licensed resources are always free, but free works are not always open. Free works may have all rights reserved or other license restrictions that prevent alterations, which means they are not considered open.
Except where otherwise noted, this work is licensed under a Creative Commons Attribution 4.0 International License.