Open Educational Resources (OER) are teaching, learning and research materials in any medium – digital or otherwise – that reside in the public domain or have been released under an open license that permits no-cost access, use, adaptation and redistribution by others with no or limited restrictions. UNESCO

Most open licensed materials use a Creative Commons license. For more information about Creative Commons licensing select the Copyright and Creative Commons tab on the left.

Open Educational Resources or OER allows adopters of OER materials to "Revise, Remix, Reuse, Re-distribute, and Retain" educational materials. These are known as the "5 R's of OER."

• Retain – Make, own, and control copies of the content (e.g., download, duplicate, store, and manage)
• Reuse – Use the content in a wide range of ways (e.g., in a class, in a study group, on a website, in a video)
• Revise – Adapt, adjust, modify, or alter the content itself (e.g., translate the content into another language)
• Remix – Combine the original or revised content with other material to create something new (e.g., incorporate the content into a mashup)
• Redistribute – Share copies of the original content, your revisions, or your remixes with others (e.g., give a copy of the content to a friend)

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