Abstract : We are putting into question the development project as a didactic and pedagogical support. How does the use of a practical development project allow new teaching objectives to be created for the study of everyday spaces (or territories of proximity) in which the student is a full participant? Firstly, we will define how the use of the project contributes to the renewal of teaching geography, and particularly, educating future citizens on the complexity of territorial issues. Secondly, we will build on a project developed and carried out in a Lille Academy middle school. The experiment proposed to redesign the access road to the school. The students designed a coherent development project. The objectives are understanding the complexity of social relationships, current conflicts, etc. highlight how a project proposes to take the complexity of a territory and the difficulty of developing a project which respects multiple participants and complex issues. Key words : project – teaching geography – actor – evaluation