This document summarizes key concepts in occupational therapy including occupational performance areas, activities of daily living, productivity or work, play or leisure, and rest/sleep. It describes common occupational performance areas like grooming, bathing, dressing, feeding, medication routines, home management, care of others, educational activities, and vocational activities. The document also discusses performance contexts that can influence occupational performance, including physical, personal, cultural, social, and situational contexts.