This curriculum guide provides classroom organizational guidelines, activities, and lesson plans to promote social interaction and the development of social competence in preschool children with disabilities or at risk for developmental problems or delays. The program is designed to include peers who are either developing normally or have higher levels of social competence. The curriculum focuses on six social interaction skills: sharing, persistence, requesting to share, play organizing, agreeing, and helping. An introductory chapter describes the curriculum including its history, development, and field testing. Chapter 2 focuses on the selection of specific children for the intervention. Chapter 3 is on organizing the classroom and scheduling for the program's implementation. Chapter 4 provides guidelines for implementing the social skills lessons with a sample intervention schedule for 100 days. Chapter 5 is on ways to promote generalization, and the final chapter is on ways to adapt the curriculum to different situations in the classroom. The first appendix provides directions for 21 specific intervention activities. The second appendix provides 25 lesson plans, many of which utilize the intervention activities and are grouped into the six social interaction skills of the curriculum. A glossary is included. (Contains 36 references.) (DB)