Although teacher teacher collaboration as a way of schools delivering services for student with learning disabilities is much described, in fact, little literature grounded in data or theory is available. This leaves us with a gap in knowing what collaboration is or could be. In this article, one of the few theories of collaboration is presented, Farrell's "Collaborative Circles: Friendship Dynamics and Creative Work." Farrell's theory then becomes the basis for descriptions of teacher teacher collaboration. (Contains 1 table.)