OERs are resources that individuals (students, teachers, etc) can use freely to revise, remix, redistribute, reuse, and retain. These resources cover a broad area of educational content including textbooks, platforms for learning (like MyMathLab), and other key learning materials.

There are many sites that have collected the works of a variety of OER efforts globally.

BC Open Campus

OER Commons

Rebus Community

MERLOT

LumenLearning

OPEN ALG

Below, separated by subject, are places you might start browsing to get an idea of what's available for you to use. Need to go further? Try using the George Mason Metafinder. The video on the left will walk you through using this resource, with a sample search.