INTRODUCTION
Historically, teachers have worked in isolation--one teacher to a classroom. As children with disabilities entered the public schools in the 1970s, they were taught in separate classrooms with their own teachers. Over the past 25 years, these students have slowly moved into the flow of the regular classroom, thus the use of the term "mainstreaming." However, students were mainstreamed for selected subjects or parts of the day; they were not considered part of the typical class. Now the philosophy is to include all students in the same class, which has brought about teams of general education and special education teachers working collaboratively or cooperatively to combine their professional knowledge, perspectives, and skills.