The Effectiveness of Bilingualism in Mathematics Achievements of the Grade Seven students

Abstract

This study explored the impact of bilingualism (Filipino and English) as a medium of instruction on students' Mathematics achievement and engagement. Two similarly performing sections were compared: 40 students in English-only and 40 students using bilingualism as instruction. A quasi-experimental design with purposive sampling was used, along with pre- and post-assessments, observation checklists, and statistical tools such as mean, T-test, and Mann-Whitney U test. Results showed that the bilingual group outperformed the English-only group in both achievement and engagement(t = 2.11, p> 0.038), suggesting bilingual instruction can effectively enhance learning in Mathematics.