Shimizu K. A Study of Points of Teaching Proactive Use of Mathematical Representation in Arithmetic: Focuses on the Difference Between Arithmetic and Mathematics and Characteristics of Writing and Drawing. JILS [internet]. 2019 Mar. 29 [cited 2026 Sep. 12];13(1):1-11. available from: https://so02.tci-thaijo.org/index.php/EDGKKUJ/article/view/181141