When school counselors, teachers, and parents use play techniques with an accepting, safe relationship, they foster development of children's interpersonal needs which are fused with positive experiences at school and at home. This paper uses Kaufman's (1989) model of interpersonal needs as a theoretical framework to support the use of play techniques by school counselors. It also extends this framework to validate classroom teachers' and parents' use of play techniques as they foster the development of children. It offers many suggestions that show how school counselors can use play techniques to influence children's growth in each of Kaufman's interpersonal needs. School counselors help to reinforce the acquisition of developmental skills by collaborating with teachers and parents. School counselors, teachers, and parents can work as a system to facilitate developmental growth in children. The paper lists each of Kaufman's interpersonal needs of the child, and the role the counselor, teacher, and parents play in helping with the child's development. (Contains 20 references.) (JDM)