This document provides an overview of how to create lessons, activities, and courses using open education resources (OER) in three easy steps. It introduces Open High School and its mission to provide individualized, student-centered instruction using innovative technology and OER. The three steps are: 1) building lessons around state standards and existing OER, 2) enriching materials with media, interactives, and collaboration tools, and 3) adapting and modifying lessons based on instructor feedback and data. It also lists tools like Moodle, Google Docs, and OER Glue that can be used and provides case studies of OER repositories like CK12, BrainPOP, Brightstorm, and TeachersDomain.org.