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Open Educational Resources

Open Educational Resources (OERs) are any type of educational materials that are in the public domain or introduced with an open license. The nature of these open materials means that anyone can legally and freely copy, use, adapt and re-share them. OERs range from textbooks to curricula, syllabi, lecture notes, assignments, tests, projects, audio, video and animation. (Source: What are Open Educational Resources?)

Using OER in your classroom can save you time and your students money. Take a look and see what is available in your discipline!

The 5 Rs of Open Educational Resources

  • Retain – the right to make, own, and control copies of the content
  • Reuse – the right to use the content in a wide range of ways (e.g., in a class, in a study group, on a website, in a video)
  • Revise – the right to adapt, adjust, modify, or alter the content itself (e.g., translate the content into another language)
  • Remix – the right to combine the original or revised content with other open content to create something new (e.g., incorporate the content into a mashup)
  • Redistribute – the right to share copies of the original content, your revisions, or your remixes with others (e.g., give a copy of the content to a friend)

Source: Wiley, D. (2014, March 4). The access compromise and the 5th r. [Web log post]. Retrieved from

Videos about OER

OER Author Guides

OASIS - the OER Search Engine

Milne Library at SUNY Geneseo gathered more than 155,000+ records from 52 different sources with the goal of making the discovery of Open Educational Resources content easier.  Some of the features of OASIS include the ability to limit search results by license, type, subject, source, and reviews available.


Give OASIS a try!

Find Open Textbooks

The following resources can be used to locate high quality, peer-reviewed open textbooks in a variety of subject areas. Most of these resources also provide evaluative information about the textbooks they contain, such as faculty reviews, accessibility reviews, and usage statistics.

The Open Textbook Library provides an easy-to-use interface for locating and evaluating OER. Along with peer-reviewed textbooks, the OTL provides reviews from faculty who have adopted their texts for courses.

OpenStax is one of the most popular OER repositories in use today, and provides textbooks for college as well as high school AP courses.

OpenStax CNX expands upon the introductory textbooks available in OpenStax with more specialized topic coverage, including Applied Probability, Programming Fundamentals, and even Music Theory textbooks available. Use its Search feature to find alternate and updated editions of the base OpenStax books and more!

The British Columbia Campus Consortium's OER repository, BCCampus OpenEd collects textbooks from a variety of resources, including the books housed in OpenStax and others.

Containing openly-licensed, peer-reviewed textbooks from the State University of New York, SUNY Open Textbooks provides open textbooks as well as consultation services for faculty interested in adopting or creating OER.

All our textbooks for students – and there are over a thousand – are completely free and can easily be downloaded in PDF format. They are all written exclusively for Bookboon by professors from the world’s top universities.

Provides over 100 free or low-cost books and other course resources.

Find Other OER

Other open educational resources (syllabi, course handouts, lesson plans, etc) can be found in the following OER repositories. Some, like OER Commons, contain open textbooks as well as other course materials. Others, like Open Learn, host live course content and provide users with "badges" to indicate if they have completed a course. 

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