Güney HACIÖMERO0LU, Sezen APAYDIN. Tangram Etkinli i ile Çevre ve Alan Hesabi. Elementary Education Online [Internet]. 2023 Dec. 15 [cited 2024 Jul. 9];8(2):1-6. Available from: https://ilkogretim-online.org./index.php/pub/article/view/2934