This document summarizes a presentation about adapting open educational resources (OER) to support teaching. It defines what an open textbook is and discusses adopting versus adapting OER. Faculty are encouraged to customize and contextualize open textbooks using the 5R framework of reuse, revise, remix, retain, and redistribute. The benefits of adaptation include controlling pedagogy and improving content for learners. Tips are provided for the adaptation process and overcoming concerns, including starting small and using available resources like Pressbooks and BCcampus support.