SHAPE America (Society of Health and Physical Educators) defines physical education through four essential components that establish what quality PE programs should include. These components are: (1) Standard-based curriculum — a planned, sequential program aligned with national or state standards that develops students' knowledge and motor skills; (2) Appropriate instruction — evidence-based teaching methods, class organization, and assessment strategies that accommodate diverse learners; (3) Student assessment — formative and summative evaluations measuring progress toward standards and fitness outcomes; and (4) Opportunities to practice — sufficient time and facilities for students to actively engage in physical activity and skill development. These four pillars work together to ensure PE programs are comprehensive and effective. Standard-based curriculum provides the framework and learning objectives. Appropriate instruction delivers content through effective pedagogy. Student assessment tracks whether students are meeting goals. Opportunities to practice give students adequate time to apply what they learn. SHAPE America emphasizes that all four components must be present for a PE program to effectively support students' physical literacy, fitness, and lifelong physical activity habits. The framework helps schools and teachers evaluate their programs and identify areas for improvement, ensuring that physical education contributes meaningfully to students' overall health and development.