OERs are the most useful and most effective when they grant users the permission to:
These 5 Rs allow instructors and students to use, customize, and build upon the original OER, to keep a copy as long as they want, and to share their adaptations with the world.
Here are a few steps to consider in the evaluation process. If this process seems lengthy, think about the process you follow to review textbooks and other materials for your course. You can use a similar or modified evaluation process to that.
Note: This is from the Open Educational Resources guide from the University of Illinois at Urbana-Champaign Libraries.