This document discusses the definition, models, functions, and types of supervision. Robinson (1949) defined supervision as equipping less experienced individuals with skills and knowledge. Kadushin (1976) described supervision as having expressive and supportive leadership roles. Supervision aims to foster a positive relationship between worker and client. Common models include dynamic and supervisor-supervisee relationship models. Key functions of supervision include professional practice, impact, job management, and continued learning. Types of supervision occur at primary/secondary schools, school districts, post-secondary institutions, departments, campus administration, and university systems. Problems can include conflicts and mediation roles. The conclusion emphasizes supervision's importance in providing support and accountability.