Pengaruh Problem Based Learning Berbasis Literasi Matematis Terhadap Kemampuan Komunikasi Matematis Siswa Kelas IV SD

The purpose of this study is to determine the effect of the Mathematical Literacy-Based Problem-Based Learning (PBL) model on students' mathematical communication skills. The research subjects consisted of 30 fourth-grade students in the experimental class and 30 fourth-grade students in the control class at MI Muhammadiyah 5 Surabaya. This study uses a mixed-methods approach, with quantitative analysis conducted in the first phase and qualitative analysis in the second phase. The results, obtained using a t-test, indicate that Mathematical Literacy-Based Problem-Based Learning positively and significantly influences mathematical communication skills, with a result of 0.002, meaning the significance value is < 0.05. The average score for the experimental class was 76, while the control class had an average score of 56. Interview results revealed three categories of students based on their written and oral mathematical communication skills. Additionally, two subjects demonstrated discrepancies between their written and oral mathematical communication abilities.
Thus, it can be concluded that Mathematical Literacy-Based Problem-Based Learning has a positive and significant effect on students' written and oral mathematical communication skills.