Page 9 MMA ACT 303 (b.1) when the pupils in the classroom have different mother tongues or when some of them speak another mother tongue; (b.2) When the teacher does not speak the mother tongue of the learners; (b.3) When resources, in line with the use of mother tongue, are not yet available; and (b.4) When teachers are not yet trained how to implement the MTB-MLE curriculum. C.) Basic education shall be delivered in languages understood by the learners as the language plays a strategic role in shaping the formative years of learners. D.) In such exceptional cases, the primary medium of instruction shall be determined by the DepEd aligned with the framework being used in the elementary level including teacher training and production of local resources and materials under DepEd Order No. 31 series of 2012. E.) Arabic shall be taught as subject in all grade level as required for Muslims under existing laws. This will, however, be optional for non-Muslims. F.) In private Madaris and other Islamic institutions, Arabic shall be the official medium of instruction. However, shifting to the auxiliary vernacular shall be applied when teaching in the lower grade levels in order to assist the slow learners. Sec 9. Hiring of Graduates of Mathematics, Sciences and Technical-Vocational Courses. The implementation of K to 12 Program entails the urgent need of the expertise of graduates of Mathematics, Sciences, Technical-Vocational courses and other skilled and well-trained individuals duly certified by TESDA. To surmount this exigency, the DepEd-ARMM and private education institutions shall hire the foresaid graduates in probationary basis to teach in their specialized subjects. However, such graduates shall be prioritized whenever the need of hiring new teachers arises whether to fill unfilled or newly created position in the plantilla; Provided that they pass the LET within three (3) years after the date of their hiring. Sec. 10. Madrasah Education. Pursuant to the mandate of R.A 9054 known as the Organic Act for the Autonomous Region in Muslim Mindanao the Autonomous Regional Government shall promote and strengthen the Madrasah System as an essential part of the Regional Education System and a relevant Standard Madrasah Education (SME) shall be taught to the Bangsamoro children.