OERs (open educational resources) are freely available, openly licensed educational materials that can be used to support teaching. Read more at https://creativecommons.org/about/program-areas/education-oer/
Open Educational Resources (OERs)
UC guide on how to find OER textbooks: https://canterbury.libguides.com/OERs.
Open/public domain resources
Creative Commons search - https://search.creativecommons.org/
Resources with permission from copyright owner
For third-party created material, you can seek permission from the copyright owner to use the material - see Seeking permission
For third-party created resources openly available on the internet, provide citations and links to the material from your course material - students can access the resource at the publisher source instead. You can also provide citations/links to material e.g. textbooks, e-books, journal articles etc. that are not free and encourage students to purchase the item for their own study.
Not sure about a resource you want to use?
Email us for advice.