Résumé
The article presents an intervention, which aims to help teachers in solving professional problems related to student dropouts. The developmental intervention is conducted within the framework of the Clinic of Activity studies (Clot, 2008) to establish, within the school, a space of analysis of work centered on the development of professional activity. The observations as well as self-confrontation data document each step leading professionals to analyze together the contradictions and tensions of their activity with dropouts. The results show the space of analysis of work located in the school as a place of conception and experimentation of new pedagogical actions.