What if sharing knowledge was the default, not the exception? Open Educational Resources (OER) put the principle of sharing knowledge into action. In this UNESCO explainer, discover what OER are, how open licensing works, and how it enables learning, teaching and research materials to be accessed at no cost, reused, repurposed and redistributed by others. Unlike content that may be free to access but cannot be modified, OER can give users permission to update, translate and adapt resources for different languages, classrooms and learners. From a student accessing an openly licensed textbook to a lecturer legally transforming an article into a video, the film explores what becomes possible when knowledge can be shared and built upon. Open knowledge. Shared opportunity. This is OER. Learn more about UNESCO’s work on Open Educational Resources and the 2019 UNESCO Recommendation on OER. #OpenEducationalResources #thisisoer #OER #OpenKnowledge #UNESCO