This report summarizes a cooperative program in which senior student teachers from Newark State College serve as staff members in the South Brunswick, New Jersey, schools for a 6-week summer training program followed by a full semester of internship in the schools. Among the essential elements of the internship program are: (1) its role as a part of South Brunswick's long-range system-wide Organization Development Program; (2) a 2-week summer program involving interns, cooperating teachers, and college supervisors in human relations training and in the cooperative planning of the work of the following 4-week period; (3) the 4-week inquiry-centered school in which teacher-intern teams worked with small groups of pupils who came to school mornings only, leaving afternoons free for further planning and continuing and immediate diagnosis and evaluation; and (4) follow-up during the fall semester of teaching, being observed and participating in periodic seminars under the direction of the college supervisor. Objectives and values of the program are summarized, with emphasis upon the genuine professional contributions the interns were able to make to the total school program and upon their increased sense of involvement, self-confidence, and personal and professional growth. (ES)