This paper provides an overview of educational, legal, and philosophical aspects of integration of Massachusetts students with disabilities. It discusses effective practices based on current research, the experience of parents and practitioners, and model programs. Introductory sections consider the importance of the integration concept and offer an historical and legal perspective. Support for integration is documented with a literature review examining benefits of integration and the efficacy of the existing service delivery system. Specific practices that promote integration are offered. These address: (1) school organization; (2) curriculum, pedagogy, and evaluation; (3) professional development; and (4) student, family, and community collaboration. Recommendations are then offered for each of these areas. Integrated programs in nine Massachusetts school districts are described. Appendices provide the following: statutory and regulatory definitions; guiding questions for the evaluation process; strategy ideas for supporting students in regular classes; and specific change strategies in each of the four listed areas. (Contains 150 references.) (DB)