In response to the massive disruption of education due to the Covid-19 pandemic affecting 1.57 billion learners in 191 countries, UNESCO has issued a Call to support learning and knowledge sharing through Open Educational Resources (OER) worldwide. OER are learning, teaching and research materials in any format and medium that reside in the public domain or are under copyright released under an open license[1], permitting no-cost access, re-use, re-purpose, adaptation and redistribution by others.

The following resources are related to this publication by citation.