Some OER platforms such as OpenStax have built-in faculty review processes to ensure the materials are high quality, while others do not. The following resources will help you judge resources for relevance, accuracy, production quality, accessibility, interactivity, and licensing.
Once you find textbooks and other content to use in your course, you may want to modify that content to fit your learning outcomes and the specific needs of your students. For example, you may wish to localize examples, add something new like a video, or adapt the content to match the learning styles of your class.
Each OER you modify, remix, or use portions of must be properly attributed. The Creative Commons license requires attribution as one of their terms. CC attribution states "You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in a any reasonable manner, but not in any way that suggests the licensor endorses you or your use." The Creative Commons Wiki has more on best practices for attribution. Try the Attribution Builder created by Open Washington.
The ideal attribution contains: Title, Author, License and modification. Each part should be hyperlinked when possible. For example:
"Title" by Author is licensed under CC BY 4.0 / Modification made.