Serap ERDOĞAN, Nurbanu PARPUCU, Menekşe BOZ. The Effects of Educational Materials Focusing on Numbers and Operations on Mathematical Ability of Preschool Children. Elementary Education Online [Internet]. 2023 Dec. 11 [cited 2024 Jul. 5];16(4):1777-91. Available from: https://ilkogretim-online.org./index.php/pub/article/view/468