Vers un modèle de diagnostic de compétence

The Lingot project is a multidisciplinary project that aims to support the management of the cognitive diversity of students in school algebra learning. In this paper, we focus on the research approach based on theoretical frameworks from Computer Science, Cognitive Ergonomics and Didactics of Mathematics. We present our research questions and a cognitive diagnosis tool we implemented. We propose (i) to analyze students’ algebraic reasoning with a three layer set of indicators each level adapted to a special usage, (ii) to develop a general diagnosis model based on a model of situations to collect data, to produce indicators from collected data and to display the indicators for different users (iii) to implement artifacts both to test and to suggest the different models. MOTS-CLÉS : Environnements Informatiques pour l’Apprentissage Humain (EIAH), Diagnostic cognitif, algèbre élémentaire, Prototypage, Conception Participative.