title: [On the acquisition of the first mathematical notions and their alterations. II. Pedagogical point of view].
mesh_terms: D002648:Child; D006801:Humans; D007858:Learning; D008433:Mathematics; D013663:Teaching
vernacular_title: Réflexions sur l'acquisition des preniéres notions mathématiques et ses vicissitudes. II. Point de vue pédagogique.