In the Winter 2022 issue of the publication Liberal Education, the Association of American Colleges & Universities (AAC&U), published a very concise infographic / overview of the latest research into the impact of OER. They recommend that...
"All types of higher education institutions should consider OER as a quality, equity, and affordability strategy as they seek to bolster their student success efforts. Effective OER initiatives do not need to be massive, resource-intensive, or exhaustive."
The terms "open educational resources" or "OERs" describe any content published in tangible format that is licensed by the creator to provide all users with free and perpetual permission to use that content for engaging in the 5R activities (listed below), typically utilizing a Creative Commons license.
The 5 Rs:
Although you have the right to retain Open Access journal articles or eBooks, and in certain cases redistribute them, you cannot revise, remix, or reuse them, so they are not considered OERs.
Open Source software are also not typically considered OERs because they aren't pedagogical in nature, although they are released with the same type of 5R rights.
In this video, EKU Faculty members reflect on their experiences using OERs in the classroom.