Sembiring, R. T.; Tarigan, A. V. B.; Siregar, A.; Mailani, E. PROBLEMS IN ELEMENTARY SCHOOL STUDENTS’ UNDERSTANDING OF MATHEMATICAL CONCEPTS AS SEEN FROM TEACHERS’ TEACHING METHODS. Jurnal Merah Putih Sekolah Dasar, The Indonesian Journal of Primary School Education 2026, 2 (3), 270-274. https://doi.org/10.24114/jmpsd.v2i3.72191.