Improving Mathematical Problem-Solving Abilities Through An Open-Ended Approach In Grade VI Of Mi Maraqitta’limat Anyar In The 2025/2026 Academic Year. JUPE : Jurnal Pendidikan Mandala, [S. l.], v. 11, n. 2, p. 347–353, 2026. DOI: 10.58258/ymtp1p21. Disponível em: https://ejournal.mandalanursa.org/index.php/JUPE/article/view/10786. Acesso em: 24 jun. 2026.