This guide to reversioning open educational resources (OER) is intended to help teachers in the Pacific adapt OER to the context of their own teaching situation. The guide contains five units: (1) What are OER; (2) Licensing open educational resources; (3) Aligning OER with a national curriculum; (4) Ensuring your content is appropriate and relevant; and (5) Building in appropriate learning activities, reflection activities and assessment tasks. This guide was developed as part of the Pacific Partnership for Open, Distance and Flexible Learning Project, supported by Foreign Affairs and Trade, New Zealand.