Résumé : We examine patterns of acquiring non-native languages in a model with two languages corresponding to two populations with heterogeneous learning skills, where every individual faces the choice of self learning the foreign language or refraining from doing so. We then introduce a profit-maximizing international school with two divisions (one in each population) so that each individual may now also choose to learn the other language at school. Comparative statics are analyzed in each model, and the solutions of both models are compared.