Curricula and materials have been developed in the local languages based on the national curriculum, and regular training for teachers and education managers in this approach has been carried out. The initiative shows very positive results so far. Students in MTBBE classes have outperformed students in non-MTBBE classes in every area assessed. Not only are the learning results very 3."states should take appropriate measures so that, wherever possible, persons belonging to minorities may have adequate opportunities to learn their mother tongue or to have instruction in their mother tongue" 4. UN General Assembly , Human Rights Council (2011). Report of the Independent Expert on minority issues, Gay McDougall. Mission to Viet Nam (5-15 July 2010). A1HRC116i45/Add.2