This paper presents a method aiming at analyzing a problem of overpopulation at the university of Lomé (Togo). In this perspective, we associate the teachers' perceptions with that of students through two kind of questionnaires, static and interactive. We describe this methodology to survey large groups of students. The results allows to better understand the teaching context of students, their difficulties but also the hidden potential of their situation. In background the feasibility of distant learning is also analyzed through this method of investigation. [For the complete proceedings, see ED579395.]