We propose to present in this article some results of the research that we conducted in the Autogestioned Lyceum of Paris (LAP). Our observations focus on the functioning of the school and its impact on the relationship between students, school and school subjects. We were led to propose the concept of Institutionalization Work (IW) to refer to the practice of autogestion at the LAP which is a double task: on the one hand concerning the internal norms of the school and on the other hand concerning its relationship to institutions that flow through it. How this concept helps us to examine and understand "violence" that may arise in the educational institution and subsequent professional practices?
institution; Autogestioned Lyceum of Paris; normativity; collective