In almost any classroom, an observer can watch teachers engaged in direct interaction with students that is intended to control student behavior and promote student learning. Yet, this is only one aspect of teachers’ efforts to pursue this agenda. Outside the students’ view, teachers plan and carry out other actions before students even come into the classroom. Thus, they contribute to the building of the structure called “What Teachers and Students Can Do Here,” building walls and creating living space, without the possibility of immediate conflict with students. It is these “invisible” (Hustler & Payne, 1982) arrangements that are the focus of this chapter.