OER or Open Educational Resources are free and openly licensed educational materials (i.e. textbooks, assignments, lesson plans, etc.) used for teaching, learning, and research.
In order to be an Open Educational Resource, a material must be licensed so as to allow one to:
Open Educational Resources (OER) are either in the public domain or licensed for maximum use and reuse by the copyright holder. This allows others to use, re-use, edit, and even 're-mix' these openly-licensed materials.
The standard licenses for OER are Creative Commons licenses.
Creative Commons licenses are modifications of the traditional copyright license. These modification grant some rights to the public.
"Creative Commons licenses give everyone from individual creators to large institutions a standardized way to grant the public permission to use their creative work under copyright law. From the reuser’s perspective, the presence of a Creative Commons license on a copyrighted work answers the question, “What can I do with this work?” "
From: About CC Licenses
Information in this section is licensed under a Creative Commons Attribution 4.0 International License, derived from University Libraries of the University of Oklahoma.