Laila S. Lomibao^1,, Charita A. Luna¹, Rhoda A. Namoco¹

Challenging students to communicate both orally and in writing in mathematics class help deepen their conceptual understanding, improve mathematics performance and reduce anxiety towards mathematics. This study was undertaken to determine the effect of mathematical communication on the mathematics performance and anxiety of high school students in Bulua National High School. Pretest-posttest quasi-experimental control group and qualitative research design were employed. Interviews were also done to verify responses for triangulation. Results of the analysis revealed that the students exposed to mathematical communication approach have significantly higher achievement, conceptual understanding and significantly reduced anxiety compared to the Dynamic Learning Program (DLP) approach. Hence, mathematical communication is effective in improving students’ achievement, conceptual understanding, and reducing anxiety.