MOONNOI, P. The development of mathematics learning activities based on Constructivist Learning in four operations on decimals (addition, subtraction, multiplication and division) for Primary 6. Journal of Integration Social Sciences and Development, [S. l.], v. 1, n. 2, p. 9–22, 2021. Disponível em: https://so15.tci-thaijo.org/index.php/JISSD/article/view/834. Acesso em: 15 sep. 2026.