Iraya Mangyan is one of the seven tribes scattered along Occidental and Oriental Mindoro. The Iraya Mangyan language is classified as Austronesian, Malayo-Polynesian, North Mangyan language (Eberhard, Simons, & Fennig, 2019). Iraya Mangyan doesn't have scripts, the only ethnolinguistic practice is through speaking.  Iraya Mangyan intonation is similar to Pangasinan (Twedel, 1958). Iraya dialect is different from other languages in Mindoro in terms of pronominal forms and functions, noun phrases structures, verb structure patterns, word order, and other sentential features (Reid, 2017). Characteristically, Iraya Mangyans are persuasive on their tribal rich discipline-based culture and industrious work ethics. But they are presently being influenced by Tagalog. Before, they use Tagalog to communicate with other Mangyan groups or to the Tagalog visitors. But nowadays, most of the Iraya Mangyan forget how to speak their mother tongue especially Iraya residing in Oriental Mindoro and little by little, in Occidental Mindoro. Before IPEd curriculum implementation, all minority schools followed the common curriculum, the students in the tribe accept more Tagalog speaking practices than their mother tongue. Through the IPEd curriculum, they are now regaining the mother tongue-based education concern, but still, the number of students attending schools is not stable. Even though the IPEd curriculum was implemented, many of the Iraya Mangyans are not practicing their mother tongue language due to the people they now engage (Tagalog) and their lack of interest to preserve their language. The characteristics of Iraya students were described as timid especially to visitors (Tagalog). Hence, the Iraya Mangyan teachers may probably a good instrument in continuing their education as well as preserving the ethnolinguistic practice of Iraya Mangyan.