This paper describes the efforts of the author and others to develop and field-test a kit of materials and activities which an elementary school faculty might use to improve problem solving in its school and classrooms. The development of the "Problem Solving School" or "PSS" program handbook at the Institute for the Development of Educational Activities (IDEA) is discussed. The program takes 20-30 hours of faculty time and is oriented toward problem solving in the classroom and in the school as a whole. Several schools accepted the program on an experimental basis; the experiences of four such schools are discussed. Indigenous leadership of the training activities is basic, and little reliance is placed on outside consultant skills because the latter is so difficult to find and may encourage dependence. A bibliography of survey articles comparing alternative approaches to organizational change is presented. (KS)