"Open Educational Resources" by Ron Mader is licensed under CC BY 2.0
OER are teaching, learning, and research resources that reside in the public domain or have been released under an intellectual property license that permits their free use and re-purposing by others. ~ William & Flora Hewlett Foundation
For a more comprehensive overview on OER, see:
Go to the video playlist on YouTube to view each video individually or watch all 10 videos continuously below.
These are examples of several Heating, Air Conditioning, and Refrigeration Technology-related OER. Additional OER in this subject may be found by searching the resources listed on the ACC Libraries primary Open Educational Resources Guide.