The effects of a self-management program on preservice teachers’ performance were examined. Intervention included a self-instructional module for self-management as well as practice for implementing self-management in teaching. During a field experience in physical education, pupil behaviors in the classes of four subjects were coded by trained observers using the Academic Learning Time-Physical Education Observation System (ALT-PE). Each teacher’s verbal behavior was audiotaped and coded using the event recording method. The influence of the cooperating teacher and the supervisor was controlled in order to assess self-management efficacy. Results indicated that teachers can acquire self-management skills as they do other teaching skills during their preservice education. A multiple-baseline design across behaviors and a reversal design showed that all subjects changed their teaching behaviors effectively and met the field experience criteria.