Dr. Prosser was a public school teacher at the elementary level and school counselor, K-12, for 32 years prior to coming to Whitworth as an instructor. He is a member of the American Counseling Association, Specialists in Group Work Association, Phi Delta Kappa, and Washington School Counselor's Association. He was awarded the elementary school counselor of the year. He teaches courses in The Counseling Process, Introduction to Group Counseling, The Role and Function of the School Counselor, Legal and Ethical Issues in School Counseling, Development Across the Lifespan, and supervisor of school counseling practicum and internship experiences.