This master's thesis founds its origins after a training period at CASNAV (Centre Académique et Scolarisation des Enfants Nouvellement Arrivés en France). This writing shows the program before solidifying the assigned project. It is also a reflection on the difficulty in finding adequate methodologies to teach French as Second Language and as a Scholar Language. The aim of my training work was to create a resource on the internet with the following goals : promote the autonomy of students, improve understanding of the specific vocabulary concerning courses at school and discover the school environment in France. The created project is a thriller story called "Mystère dans ton collège", and it takes place in a school : the student is the hero of the story and has to do activities and at the same time he/she discovers the school environment. This project is included on the website of the CASNAV http://www.ac-grenoble.fr/casnav/, specifically in the " Espace Eleves " (students area): http://www.ac-grenoble.fr/casnav/Espace_eleve/