YAZMA ETKİNLİKLERİNİN ORTAOKUL ÖĞRENCİLERİNİN CEBİRSEL İFADELER KONUSUNDAKİ AKADEMİK BAŞARISINA ETKİSİ (THE EFFECTS OF WRITING ACTIVITIES ON ACADEMIC SUCCESS ON MIDDLE SCHOOL STUDENTS ON ALGEBRAIC EXPRESSION) - A.Arzu ARI -A.Arzu ARI-- Zühal YILDIRIM | SOCIAL SCIENCES STUDIES JOURNAL (SSSJournal)