Sembiring, R.T. et al. 2026. PROBLEMS IN ELEMENTARY SCHOOL STUDENTS’ UNDERSTANDING OF MATHEMATICAL CONCEPTS AS SEEN FROM TEACHERS’ TEACHING METHODS. Jurnal Merah Putih Sekolah Dasar. 2, 3 (Jan. 2026), 270–274. DOI:https://doi.org/10.24114/jmpsd.v2i3.72191.