ISSN: 2782-893X
eISSN: 2799-0664
Use of the appropriate language in teaching learners greatly contributes to academic
performance and success in school. Language plays a vital role in the learning process of the
elementary learners. Teachers must ensure that the language to be used in the different subject
areas are the language first heard at home (Benson, 2004). In relation to DepEd Order No.16, s.
2012 which provides the guidelines on the nationwide implementation of Mother Tongue-Based
Multilingual Education (MTB-MLE) that started in the school year 2012-2013, elementary schools
nationwide were prompted to adopt such a system. Mother Tongue Based (MTB) is a subject and
as medium of instruction in all subject areas in Grade I except for Filipino and English. With these,
teachers and pupils had hard time in translating Mathematics language to Mother Tongue. This is
the reason why the researcher conducted this study to evaluate the effectiveness of MTB
instruction in the performance of Math in grade I.
It was revealed that the pre-test performance of the Grade I pupils in Math for the
experimental group was moderate while in the control group was high. Moreover, the post-test
performance of the Grade I pupils in Math for the control and experimental groups were very high.
Furthermore, it was also revealed that there is significant difference between the scores in the pretest and post-test performances of the Grade I pupils in Math for the experimental and control
group and there is also significant difference on the scores of the post-test Math performance between
the two groups. This means that both MTB and English as medium of instruction in teaching Math for
Grade I is effective. It is recommended to implement the formulated Intervention Plan in Mathematics to
improve or maintain the performance of the pupils.