Brent McClain is the K-12 Mathematics TOSA for the Oregon City School District in Oregon City, Oregon, as well as part time Classroom Teacher Specialist for the CPM Educational Program. He has taught all levels of math 7th grade through community college level throughout his 37 year teaching career, and has served as mathematics professional development provider for over twenty years. Brent was the 1996 PAEMST Awardee for Oregon, and has been supporting CPM teachers since 2016.