Open Educational Resources (OER) are teaching, learning, and research resources that have been released under an intellectual property license or reside in the public domain that permits their free use and reuse by others.
OERs are different than other educational resources because they are created and distributed with the 5Rs framework in the mind.
They are openly available for use by educators and students, without the need to pay royalties or license fees.
OER include learning materials such as:
A wide spectrum of legal frameworks is emerging to control how OER are licensed for use. The best known one is the Creative Commons (CC) licensing framework. Within this framework, the CC licenses allow authors to authorize other people the right to make copies of their work and make changes to their work without the need to seek the creator's permission. The CC licenses also allow creators to apply some restrictions on the permissions, for example, requiring attribution of the original work, or restricting reuse of the resource for commercial purpose. See "Copyrights" tag for more information about CC licenses.
Guide for OER
Because OER takes away restrictions around copying resources, it can reduce the cost of accessing educational materials.