Garrett completed a B.S. in Education and in Psychology at Western Michigan University in 2011. He earned his M.A. in Industrial/Organizational Behavior Management in 2017, and his Ph.D. in Behavior Analysis in 2018. He has volunteered and worked in public schools since he was in high school himself, with most of his time focused on mathematics and at-risk students. Beyond math his interests include behavior and classroom management, instructional design, and data-driven decision making.