A survey is conducted to provide the preliminary framework for wider applications in resolving pervasive intercultural language problems in multi-lingual and multi-ethnic situations in the Mindanao context considering the following: development of non-national/minority languages, the problem of de-ethnicization and minoritization, language rights and ethnolinguistic vitality. The survey was conducted in the cities of Marawi, Iligan, Cagayan de Oro, General Santos and Zamboanga and town of Malabang, Lanao del Sur. It is observed that in classroom and use of instructional materials, the use of mixed code is done to explain difficult concepts in science and mathematics, and an extent of mass media influence.