Addresses six environmental variables that can influence the behaviors of young children with disabilities: theoretical orientation of the program, amount of space available, classroom arrangement, length of the play period, effects of social vs. isolate toys, and the effects of different quantities of toys. (Author/CR)

The major emphasis in the studies considered in this paper is on the role of the teacher as a professional with particular expertise and specific but limited responsibilities to students and parents, and with certain rights as the instructional leader and authority figure in the classroom. According to research studies, a comprehensive approach to…