Phanprasat, K., Boonsom, N. ., Vanichwatanavorachai, S. . and Chanchusakun, S. . (2025) “Activity-Based Learning and Higher-Order Questions for Developing Mathematics Problem-Solving Ability in Sixth-Grade Students”, Journal of Research and Curriculum Development , 15(1), pp. 37–48. available at: https://so03.tci-thaijo.org/index.php/jrcd/article/view/287987 (accessed: 6 December 2025).