This paper discusses the integration of educational and mental health services for children and adolescents within a psychiatric day treatment setting at the Bradley School housed in a private psychiatric hospital affiliated with Brown University in Rhode Island. A full range of mental health services are used, and therapies are delivered in the classroom setting by treatment teams composed of psychologists, social workers, and clinicians in training. Psychiatric and medical consultation and treatment are provided on site. Other services include speech/language, occupational, and physical therapies. This program has evolved over two years from one in which the classroom was the adjunct to the treatment program to one in which the classroom is the primary agent of treatment. A 6-week inservice program focusing on the principles of operant conditioning and positive reinforcement was implemented. A study was designed to evaluate the use of behavior management strategies in the classroom, and positive results were found in the decrease in restraints and crisis incidents. As the revised treatment module began to work, community special education programs began to send students for short term diagnostic placements, and a plan is in development for "transition classrooms" intended for children who no longer need intensive treatment but are not yet ready to return to the community. (KM)