- Quick Guide to O.E.R. for Teaching & Learning
Starting with a definition of the term, and moving beyond. - Browse O.E.R. by Subject
A curated list of O.E.R. specific to City Tech areas of study and organized by discipline / department and school: - Search for O.E.R.
Search a variety of resources to locate O.E.R. in your discipline. - O.E.R. from CUNY
Browse a curated list of O.E.R. created by CUNY faculty.