This document discusses open educational resources (OER) and their relevance to education. It notes that OER can be used to differentiate instruction and increase equity as they are digital, free, and open for anyone to use, adapt, and redistribute. OER come in many forms including tools, content, and implementation resources. They are well-suited for remixing and modeling 21st century skills. The document provides information on various open licenses like Creative Commons and how to cite and contribute OER. It encourages readers to openly license their own work and share resources.