A middle school principal with 17 years of experience as a classroom teacher implemented a practicum designed to develop positive, long-lasting social skills among elementary school students in the intermediate grades. The primary goal of the intervention was to decrease the number of instances in which students used verbal or physical aggression to solve conflicts in informal and unsupervised situations. A second aim was to provide students with strategies for solving conflicts peacefully. The principal and intermediate grade teachers selected the Creative Conflict Resolution for Kids program for implementation. Implementation involved: (1) in-service training for teachers who, in turn, trained students; (2) monitoring of the progress of students in applying skills learned; (3) assistance to teachers who monitored students; and (4) collection and review of practicum evaluation data. Data indicated that outcomes of the intervention were positive. The number of students referred to the principal because of aggressive behavior decreased, as did the number of verbal conflicts on the playground. Students requested opportunities to discuss conflicts with peers. Close relationships between teachers and students developed as a result of classroom discussions of conflict resolution. Related materials including the survey instrument are appended. (RH)