MIRASINGHA, N. THE DEVELOPMENT OF AN INSTRUCTIONAL MODEL FOR ENHANCING PROBLEM SOLVING AND MATHEMATICAL CONNECTIONS SKILLS OF THE FIFTH GRADE STUDENTS. Academic Journal Phranakhon Rajabhat University, [S. l.], v. 15, n. 1, p. 124–142, 2024. Disponível em: https://so01.tci-thaijo.org/index.php/AJPU/article/view/272504. Acesso em: 10 dec. 2025.