This practical text delineates the basic steps of developing effective interventions for learning and behavior difficulties in children aged two to five. The authors set forth an ecological framework that stresses identifying problem situations rather than classifying individual children as disabled or at risk. The core components of naturalistic intervention design are covered in depth, including teacher and parent interviewing, classroom observation and functional assessment, team-based problem solving, strong accountability methods, and legal and ethical safeguards. Solidly grounded in empirical research, the book presents examples of successful interventions for fostering social competence and language skills and improving interactions with parents, teachers, and peers.