Hancherngchai S, Suttiamporn W, Jai-on J. Teaching Model Focused on Developing Higher-Order Thinking Competencies through Mathematics Teaching Emphasized Problem-Solving for Elementary Classrooms. RMUTK.L-Arts.J. [internet]. 2025 Jun. 9 [cited 2026 Sep. 13];7(2):52-66. available from: https://so02.tci-thaijo.org/index.php/larts-journal/article/view/274283