This document discusses open educational resources (OER). It defines OER as digitized materials that are freely available online for educators, students, and self-learners to use and reuse for teaching, learning, and research. OER includes learning content, software tools to develop content, and implementation resources. Examples mentioned include open learning, open access, open scholarships, open badges, Creative Commons licenses, and MOOCs. Benefits of OER include reducing barriers to education by providing open access to educational resources. Challenges include lack of infrastructure and awareness in some countries.