Diagnosis tools of dyscalculia – contribution of didactics of mathematics to numerical cognition

Abstract : Research about dyscalculia must still be developed. The dominant perspective focuses on the individual’s cognitive characteristics. We seek to know the place of mathematics education in this research and how to reconcile approaches to reach a better understanding of the disorder. We present here a methodology of analysis for tests which are designed to evaluate basic mathematics skills with various theoretical frameworks (cognitive sciences, psychology or didactics). We highlight some biases in tests from numerical cognition thanks to didactic frameworks and open perspectives to build a mathematical difficulties detection tool to facilitate the exchanges between teachers and speech therapists by providing a common inventory of the child’s difficulties.