Basic concepts and principles of guidance and pschological counseling, history, field and branches of guidance and pschological counseling; research and evaluation methods used, psychological counseling process, psychological counseling theories, school counseling models (traditional and developmental), school counseling approaches (crisis-oriented, remedial- preventive and developmental), the traditional school counseling model aims, principles, traditional the role and functions of the school psychological counselor, the purpose of the developmental school counseling model,principles and program (Comprehensive Developmental Guidance Program), basic services / interventions and the roles and functions of the developmental school counselor; The aim of the developmental and preventive approach in guidance and psychological counseling principles, the importance of life skills education in developmental approach, positive youth development approaches and prevention levels in the preventive approach (basic, second and third level).