Résumé
A way of modelling the factors, working methods and processes at play within an educational research system involving teachers and researchers is presented. This modelling takes as a touchstone a work conducted in the academy of Aix-Marseille for two years. Within the framework of the anthropological theory of didactics, the proposed model makes it possible to characterise the emerging research system and its functioning as well as the conditions and constraints of the evolution of the relationships to the object studied: mathematical problem solving (MPR).