srivilai sirikwan, Sangaroon K, Thinwingthong S. Teachers’ Knowledge of Student Learning in Secondary Mathematics Classroom Using Lesson Study and Open Approach. jma [internet]. 2023 Dec. 22 [cited 2026 Oct. 10];10(3):177-92. available from: https://so04.tci-thaijo.org/index.php/JMA/article/view/263830