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Hafife BOZDEMİR, Ebru EZBERCİ ÇEVİK, Sevcan CANDAN HELVACI, Mehmet Altan KURNAZ. THE EFFECT OF TELESCOPE OBSERVATIONS BASED ON TGA (PREDICT-OBSERVE-EXPLAIN) METHOD ON PRESERVICE SCIENCE TEACHERS UNDERSTANDING OF SOME ASTRONOMY CONCEPTS. IJOESS [Internet]. 2017 Aug. 1 [cited 2025 May 17];8(28):CLXXXVIII-CCVI. Available from: https://rrpubs.com/index.php/ijoess/article/view/954