The Game Sense Approach (GSA) is a player-centered, constructivist method for teaching sports and physical activity. It develops students' understanding through challenges that improve problem-solving and decision-making skills. GSA involves laying out basic activity rules and letting students play, then stopping to discuss the experience and have students modify rules based on challenges. The focus is on social interaction and reflection to stimulate critical thinking. GSA decentralizes the teacher's role and places responsibility on students, while also requiring teachers to improve their own content knowledge to effectively facilitate learning.