This document discusses open educational resources (OER) and their potential benefits for classrooms. It introduces four presenters on the topic: Karen Fasimpaur, Jane Park, Verena Roberts, and Jason Neiffer. OER are defined as teaching, learning, and research materials that are freely available or have an open license allowing reuse. The 4 R's framework of OER - reuse, revise, remix, and redistribute - is presented. Creative Commons licensing is discussed as a way for creators to grant permissions for copying and sharing content. Potential benefits of OER discussed include saving teacher time, encouraging authentic learning experiences, and keeping schools innovative. Examples of open resources and tools are provided.