The document discusses the importance of curriculum in education and how it must change with societal changes. It then provides the core subject description for Physical Education and Health for grades 11 and 12, stating that the subject offers experiential learning to adopt an active lifestyle for fitness and lifelong health. It describes how the knowledge, skills, and understanding developed in the subject, including physical and health literacy competencies, help students access, synthesize, evaluate information, make informed decisions, and advocate for their own and others' fitness and health.