Open Educational Resources (OER) are publicly accessible digital learning materials that can be used freely and redistributed at no cost. OER textbooks are openly licensed resources that are used for teaching, learning, assessment and research purposes. These resources live in the public domain or have been released under an intellectual property license that allows free use and re-use.
OER refer to videos, tests, software, course materials, modules and textbooks that can be freely accessed online. The “5 Rs” of OER are: retain, reuse, revise, remix and redistribute. Retain refers to the right to make, own and control copies of the content while reuse permits users to repurpose the content in various ways. Revise refers to users adapting or modifying the content whereas remix means users can combine various bits of content to create something new. With redistribute, users have the right to share copies of the original material with others.