International audience"This article focuses on the teachers that intervene in programs designed for out-of-school secondary pupils. Created in 1996, these programs are part of a "partial segregation" model aimed at tracking students faced with important social and academic difficulties into specific curricula. Whereas these programs segregate students taken out of the non-specialized classrooms, they also create a specific professional space where teachers are relatively free from the standard prescriptions that structure regular secondary education. Such programs give teachers access to new functions, new tasks, important levels of responsibility, and specific spaces relatively particular in the institution. As they practice outside the st...