TY - CPAPER TI - A Mathematics Teacher’s Functional Approaches and Levels of Decentering While Introducing Quadratic Functions AU - Belin, Mervenur AU - İşler-Baykal, Işıl AU - Karagöz Akar, Gülseren T2 - Proceedings of the International Group for the Psychology of Mathematics Education, Volume 1 PB - Psychology of Mathematics Education (PME) PY - 2026 SP - 163 EP - 170 SN - 2790-3648 KW - Functional approaches KW - quadratic functions KW - decentering UR - https://www.igpme.org/publications/RR_PME49/rr/belin-a-mathematics-teachers-functional-approaches-and-levels-of-decen/ ER -