TY - CPAPER TI - SEMANTIC CONTAMINATION OF EXPLAINING: THE CASE OF “SETSUMEI” IN JAPANESE PRIMARY SCHOOL MATHEMATICS TEXTBOOKS AU - Otani, Hiroki AU - Masaaki, Ishikawa T2 - Proceedings of the International Group for the Psychology of Mathematics Education, Volume 1 PB - Psychology of Mathematics Education (PME) PY - 2026 SP - 1091 EP - 1098 SN - 2790-3648 KW - explanation KW - semantic contamination KW - curriculum KW - mathematics textbooks UR - https://www.igpme.org/publications/RR_PME49/rr/PME49_RR_300_Otani_H/ ER -