L’implicite dans les productions d’enfantsLa métaphore dans les débats ouverts à visée réflexive

In order to observe and analyze the young children argumentation skills, we have set up in classrooms open philosophical debates from images. Children go through three phases: the description of the image that is to decipher the literal message, the interpretation of the image symbolic message and the discussion which aims to build collectively a philosophical concept that the image is loaded metaphorically.By observing the students problematization and conceptualization skills, our aim in this study is to show how children from 5 to 11 access to the underlying form of implicit in the image through the metaphor. By relying on a corpus collected in 14 classrooms of different grades, we have identified in the exchanges of children the language times that link a gradual transition from the explicit to the implicit and where the production of metaphor shows the most accomplished progress to the philosophical concept