The director of a child care center implemented and evaluated a 10-week practicum intervention designed to provide orientation and training experiences for the center's staff. About one third of the staff were part-time college students; one third were full-time workers with no degree; and one third were full-time professionals with college degrees. Topics covered by the intervention were: (1) classroom management; (2) daily routines and schedules; (3) record keeping; (4) duties outside the classroom; (5) teaching strategies; and (6) professionalism. Subtopics were developed in each of the six areas. Delivery was provided mainly through on-the-job training by mentors. Practicum evaluation data indicated that the intervention was successful. Staff increased in their knowledge of child development, their confidence in their ability to teach young children, their professional attitudes, and their use of developmentally appropriate teaching strategies. (RH)