The document defines co-teaching as two or more professionals jointly delivering instruction to a diverse group of students in a shared classroom space. It describes six approaches to co-teaching: station teaching, parallel teaching, alternative teaching, team teaching, one teaching/one observing, and one teaching/one drifting. The rationale for co-teaching is that it meets students' individual needs, provides individualized instruction in a general education environment, and creates positive social interactions among students and teachers.