ANALYSIS OF STUDENTS’ MATHEMATICAL PROBLEM SOLVING ABILITIES BASED ON POLYA’S STAGES IN MATHEMATICS LEARNING IN GRADE IV AT SD 25 BANDA ACEH. PIONIR: JURNAL PENDIDIKAN, [S. l.], v. 15, n. 1, p. 198–211, 2026. DOI: 10.22373/pjp.v15i1.34475. Disponível em: https://jurnal.ar-raniry.ac.id/index.php/Pionir/article/view/34475. Acesso em: 13 may. 2026.