This is a selective list of major repositories learning objects and open courseware, and open textbooks that can be used in multimedia teaching and online learning environments.
Learning objects take many forms, including animations, tutorials, videos, journal articles, and quizzes. Educators may include learning objects in their lessons and students may use them to complement and enhance classroom learning.
Open courseware is an entire course, often at the college or university level, that can be accessed without charge over the Internet. Some courses require only a browser to access: others, like those available through iTunesU, require the iTunesU app or the iTunes software.
Open textbooks are mostly peer-reviewed textbooks, at the college or university level, that can be accessed entirely free of charge over the Internet. Often, open textbooks are available to download in modifiable formats that allow instructors to make modifications. The goal behind adapting open textbooks is to significantly reduced student costs.