NEM, S.; INPRASITHA, D.; CHANGSRI, D. First Grade Student’s Mathematical Representation in the Classroom Using Lesson Study and Open Approach. KKU Research Journal (Graduate Studies) Humanities and Social Sciences, [S. l.], v. 10, n. 2, p. 98–112, 2023. Disponível em: https://so04.tci-thaijo.org/index.php/gskkuhs/article/view/252813. Acesso em: 1 oct. 2026.