From OER Commons [External link], Open Educational Resources (OER) are teaching and learning materials that are freely available online for everyone to use, whether you are an instructor, student or self-learner. Examples of OER include: full courses, course modules, syllabi, lectures, homework assignments, quizzes, lab and classroom activities, pedagogical materials, games, simulations, and many more resources contained in digital media collections from around the world.

The following definition of OER has been proposed by the William and Flora Hewlett Foundation: [External link]

OER are teaching, learning, and research resources that reside in the public domain or have been released under an intellectual property license that permits their free use or re-purposing by others. Open educational resources include full courses, course materials, modules, textbooks, streaming videos, tests, software, and any other tools, materials, or techniques used to support access to knowledge.

Creative Commons [External site] licenses provide an easy way to manage the copyright terms that attach automatically to all creative  works under copyright . Our licenses allow those works to be shared and re-used under terms that are flexible and legally sound.