Open Educational Resources (OER) are teaching, learning and research resources that are made freely available to anyone with access to the internet. They may include, but are not limited to, textbooks, readings, multimedia, software, assessment tools and even entire courses. Most are covered by licenses that allow using, remixing and sharing.
Image: Open Access by Duke Innovation Co-Lab is licensed under CC0 at Noun Project.
Open Educational Resources make education more affordable for students and allows instructors to create more effective educational materials. Some things to consider:
OER provides users with free and perpetual permission to engage in the 5R activities:
From "Defining the 'Open' in Open Content and Open Educational Resources" by David Wiley
This guide, "Open Educational Resources", is a derivative of Open Educational Resources (OER) - A Primer, Open Textbooks, and Open Educational Resources (OER) by Material Type, all of which are licensed under a Creative Commons Attribution license.