The first of 16 documents on the Macomb (Illinois) 0-3 Regional Project describes the development and operation of a home based rural child-parent service for families of handicapped and high risk children. The child development specialist organizes sharing centers where parents come together to learn about new Piagetian-based play activities and approaches with their children. The booklet lists goals of sharing centers for parents and children and considers such planning aspects as location, time, setup procedures, and activity scheduling. Twelve basic concepts for working with children under 3 years, including child proofing the environment and expecting physical interaction among the children, are set forth. Following a brief discussion of program evaluation, the booklet describes activities and objectives in four classifications: gross motor, fine motor, sensory, and cognitive. Another section contains suggested combinations of activities for sharing centers held in homes, outdoors, or in churches or community buildings. Illustrations of suggested spatial arrangements are also included. Snack ideas and grouping of activities and materials into portable kits are described. (CL)