Kojima, Kazuaki, Kazuhisa Miwa, and Tatsunori Matsui. “Experimental Study of Learning Support through Examples in Mathematical Problem Posing”. Research and Practice in Technology Enhanced Learning 10 (June 23, 2015). Accessed May 17, 2024. https://rptel.apsce.net/index.php/RPTEL/article/view/2015-10001.