Karin Lange is the Educator Co-Design Manager for EF+Math. In this role, she leads educator engagement strategy, manages district partnerships, and manages the Educator Leadership Council. She brings deep experience in mathematics education, educator and researcher partnerships, and professional development. Before joining EF+Math, she was the Assistant Director for Math Programs at the Center for Science and Math Education at Loyola University Chicago, where she developed programs and partnerships to improve math education. She began her career as a math teacher in Camden, NJ and has served as an instructional coach in Philadelphia schools and school district administrator in Wisconsin. She earned her EdD in Curriculum & Instruction/Math Education from Temple University, where her research focused on the use of examples in learning algebra, mathematical flexibility, and the benefits of research partnerships on instructional change in math classrooms. She currently lives just outside of Oklahoma City, Oklahoma.