Part of a new series of booklets, which includes current and innovative assessment ideas, tactics, and strategies and how to use them in K-12 physical education classes and physical education teacher preparation programs. Each booklet in the series focuses on a different assessment topic, demonstrating how the assessment idea is used in practice. New and relevant assessment ideas are being developed continuously, and this series will bring those ideas directly into the classroom. This booklet deals with the Games Performance Assessment Instrument, developed to assess skills and decision-making during game play, as well as off-the-ball movement.