Langages - Année 2000 - Volume 34 - Numéro 140 - Pages 24-37Among the various strategies of scaffolding used by the adult to engage the child in linguistic interaction, imitation, reformulation occupy a central position and facilitate the appropriation of different linguistics behaviours by the child. Through examples of adult-deaf child linguistic interaction analysed in the framework of Intonology Developmental Interactive, we will try to better understand effects of this strategies to solve the problems of intercomprehension that they find in the course of their conversations and on children' linguistic behaviour. 14 pages Source : Persée ; Ministère de la jeunesse, de l’éducation nationale et de la recherche, Direction de l’enseignement supérieur, Sous-direction des bibliothèques et de la documentation.