The Effectiveness Of Instructional Medium On Mathematics Achievement Of Senior High School Students In Sulu

Joe-an Cuaresma; Nurhassan Sappayani

doi:10.62596/6ab82h76

Authors

Joe-an G. Cuaresma Commission on Higher Education Region IX (CHEDRO9) Author
Nurhassan S. Sappayani Sulu State College Graduate Studies, Jolo, Sulu Author

DOI:

https://doi.org/10.62596/6ab82h76

Keywords:

Instructional medium, Mathematics performance, Bilingual instruction, Sinug dialect

Abstract

This study assessed the effect of instructional medium on mathematics achievement among Grade 11 students at Sulu State College. A quasi-experimental research design was applied, involving a purposive sample of 30 students equally divided into control and experimental groups. The control group received instruction solely in English, while the experimental group was taught using English supplemented with the local Sinug dialect. Both groups were given pre- and post-tests to measure mathematics performance. Pre-test results showed no significant difference between the two groups, confirming similar baseline achievement. However, post-test findings revealed that students taught with the combined English–Sinug approach achieved higher scores, reaching a “Very Satisfactory” level, in contrast to the “Satisfactory” performance of the control group. Statistical analysis using a t-test confirmed the significance of this difference. These results point to the educational value of integrating local dialects into formal instruction to support comprehension and enhance student outcomes in mathematics.

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