Open Educational Resources (OER) are teaching and learning materials that are freely available to students, educators, and the general public. They are openly licensed so that others can adopt or reuse this material for their own purposes.
To be more specific, when we say that OER are openly licensed, we mean that they can be retained, reused, revised, remixed, and redistributed. In practice this means:
(See OpenContent.org, UNESCO and OER Commons for the above definitions).
Anderson, T. & O'English, L. (2018). Open educational resources: Tools for affordable learning. Washington State University Libraries. Licensed. Retrieved from http://libguides.libraries.wsu.edu/affordablelearning
Not all, but many creators of OER choose to apply licenses indicating how others can use their work. Most commonly used are Creative Commons licenses, or a set of statements that indicate the author's wishes when it comes to citing their work, using it for commercial purposes, adapting it, and redistributing it.
Six Creative Commons licenses are frequently used by creators of OER. These licenses indicate whether authors want to allow their material to be used for commercial purposes, modified, or redistributed.
There are six different license types, listed from most to least permissive here:
CC BY: This license allows reusers to distribute, remix, adapt, and build upon the material in any
medium or format, so long as attribution is given to the creator. The license allows for commercial use.
CC BY includes the following elements:
CC BY-SA: This license allows reusers to distribute, remix, adapt, and build upon the material in any
medium or format, so long as attribution is given to the creator. The license allows for commercial use. If you remix, adapt, or build upon the material, you must license the modified material under identical terms.
CC BY-SA includes the following elements:
CC BY-NC: This license allows reusers to distribute, remix, adapt, and build upon the material in any
medium or format for noncommercial purposes only, and only so long as attribution is given to the creator.
It includes the following elements:
CC BY-NC-SA: This license allows reusers to distribute, remix, adapt, and build upon the material in any
medium or format for noncommercial purposes only, and only so long as attribution is given to the creator. If you remix, adapt, or build upon the material, you must license the modified material under identical terms.
CC BY-NC-SA includes the following elements:
CC BY-ND: This license allows reusers to copy and distribute the material in any medium or format in
unadapted form only, and only so long as attribution is given to the creator. The license allows for commercial use.
CC BY-ND includes the following elements:
CC BY-NC-ND: This license allows reusers to copy and distribute the material in any medium or format in
unadapted form only, for noncommercial purposes only, and only so long as attribution is given to the creator.
CC BY-NC-ND includes the following elements:
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