A material which is available for users to use, alter, and redistribute, and are useful for teaching and learning. This may, for example, include textbooks, lesson plans, videos, audio recordings, or entire modules.
The category includes not just resources in the public domain, but also those under open licenses, which may place some restrictions on their use or modification.
Open educational resources are most commonly shared online, and used in e-learning, but they can also be used for classroom teaching and used in printed materials.
While open educational resources promise accessibility to all learners and the flexibility to adapt them for different learning needs, it may be difficult to assess their reliability.