Open Educational Resources (OER) are online teaching and learning resources that are available on the open web free of charge. These can be textbooks, course materials, learning modules, videos and more.
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 everyone with free and perpetual permission to engage in the 5R activities:
- Retain - make, own, and control a copy of the resource (e.g., download and keep your own copy)
- Revise - edit, adapt, and modify your copy of the resource (e.g., translate into another language)
- Remix - combine your original or revised copy of the resource with other existing material to create something new (e.g., make a mashup)
- Reuse - use your original, revised, or remixed copy of the resource publicly (e.g., on a website, in a presentation, in a class)
- Redistribute - share copies of your original, revised, or remixed copy of the resource with others (e.g., post a copy online or give one to a friend)