In the present situation where oral formal learning practices in Africa tend to dwindle drastically, schools have become one central resource for the transmission of the more classical forms of African languages. At least for the languages which can boast a literate tradition, space can be easily carved out in curricula. The fashionable tendency to accept any new (African) language form as exhibited by the hype around 'Translanguaging' should not result in sanctioning language and cultural loss. Creolization and pidginization may not be the desired end of all African languages. ; Contre la tendance à valider systématiquement toutes les pratiques langagières novatrices en Afrique, au détriment des langues standard. Rappel du rôle que l'école peut jouer dans la transmission linguistique de formes 'hautes'. Ce qui vaut en Europe peut aussi valoir en Afrique.