In France, most teachers still receive scant training in how to support plurilingual children in their learning of and through the language of instruction. In the absence of relevant, in-depth knowledge about language, we believe that many teachers are practising language policies based on beliefs rooted in ideologies unsupported by research…

This article is concerned with the conditions and stakes of building competence in multiple languages in learners who, due to their language biographies or the educational system, are studying in prestigious institutional school environments, such as the French-German schools of Buc (Versailles), Freiburg (Breisgau) and Saarbrucken (Saarland). In…