The program described in this paper illustrates the extension of teaching to parents and older children. Project 88, so-called because of the 88 children who were involved during the first year of the program in 1969, is a parent participation program that included a kindergarten, a first grade, and an interage 4-5-6 combination at the Castro School in El Cerrito, California. Five of the minimum conditions that must be met in organizing a parent participation program are: (1) the teachers involved must have classroom programs that are attractive to parents and children and flexible and varied enough to allow others to share in the instructional role; (2) provisions must be made for many different kinds of participation by parents and volunteers in ways that fulfill important needs of both adults and children; (3) provide training and consultation for participants to foster understanding of children's behavior and learning, various knowledge areas, and the ways in which schools and classrooms function; (4) provide leadership and organization to insure that the planning and administrative functions necessary to coordinate the resources are carried out; and (5) obtain administrative support from the local building principal and central office personnel to facilitate operation and integration of the program into the overall school program. Parent participation grew in the three years of the program beyond the Project 88 classrooms, and it is felt that increased involvement will continue. (DB)