A 10-week practicum intervention was implemented with 67 first graders at a small, independent, university-run school in order to improve the children's affective behavior by increasing their self-esteem. The program began with a meeting with parents at which they were informed of the school's emphasis on self-esteem. In-service education was conducted among teachers and the school nurse. Students assessed their preprogram level of self-esteem. The program gave students opportunities to explore their senses of identity, belonging, security, purpose, and competence. In postprogram assessments, parents, teachers, and students observed changes in the students' affective behavior. Appendices provide measures, related materials, and references to 12 resources used in the program. Twenty-five references are listed. (RH)