Open Educational Resources (OER) are teaching, learning, and research materials that reside in the public domain or have been released under an open license that permits their free use and re-purposing by others.
Examples of OER include:
- Textbooks
- Streaming media
- Lecture slides
- Quizzes & assignments
- Games
Opencontent.org states that true OER are free to access and allow for the 5Rs of open content:
- Reuse: use the content in a wide range of ways
- Remix: combine original or revised content with other material to create something new
- Redistribute: share copies of the original content, revisions, or remixes with others
- Revise: adapt, adjust, modify, or alter the content itself
- Retain: make, own, and control copies of the content
