Effect of Problem-Based STEM Activities on 7th Grade Students' Mathematics Achievements, Attitudes, Anxiety, Self-Efficacy and Views von Macun, Yavuz, Isik, Cemalettin

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Analyzing Problems Posed by Prospective Teachers Related to Addition and Subtraction Operations with Integers von Isik, Cemalettin

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The analysis of the problems posed by the pre-service teachers about equations von Isik, Cemalettin, Kar, Tuğrul

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Comparison of Turkish and American Seventh Grade Mathematics Textbooks in Terms of Addition and Subtraction Operations with Integers von Kar, Tuğrul, Işık, Cemalettin

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On indicator of normals in En-euclid space von Hizarci, Seyfullah, Işik, Cemalettin, İpek, A.Sabri

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The Analysis of the Problems the Pre-Service Teachers Experience in Posing Problems about Equations von Isik, Cemalettin, Kar, Tugrul

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Transfer of mathematical knowledge : series von Akgun, Levent, Isik, Cemalettin, Tatar, Enver, Isleyen, Tevfik, Soylu, Yasin

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The analysis of the problems posed by the pre-service teachers about equations von Cemalettin Isik, Tugrul Kar

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Prospective teachers’ skills in problem posing with regard to different problem posing models von Işık, Cemalettin, Kar, Tuğrul, Yalçın, Tuğba, Zehir, Kıymet

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Ortaokul Öğrencilerinin Matematik Dersine Bağlılığının ve Matematik Kaygılarının Bazı Değişkenlere Göre İncelenmesi von SEVGİ, Sevim, SARI, Ayşe Nur, IŞIK, Cemalettin

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Investigating Middle School Students' Metacognition and Mathematical Reasoning of Problem-Solving Skills von SEVGİ, Sevim, MACUN, Yavuz, IŞIK, Cemalettin

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Teachers’ Role and Responsibility in Improving Preschool Students’ Mathematical Skills von Öçal, Tuğba, Işık, Cemalettin

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Prospective mathematics teachers abilities’ to construct relations between the different representations of series with complex terms von Kar, Tuğrul, Işık, Ahmet, Öçal, M. Fatih, Çiltaş, Alper, Güler, Gürsel, Işık, Cemalettin

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Transfer of mathematical knowledge: Series von Levent Akgun, Cemalettin Isik, Enver Tatar, Tevfik Isleyen, Yasin Soylu

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Analyzing Pre-service Primary Mathematics Teachers’ Skills to Determine Errors in Problems Posed by Students von Işık, Cemalettin, Kar, Tuğrul

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An Error Analysis in Division Problems in Fractions Posed by Pre-Service Elementary Mathematics Teachers von Isik, Cemalettin, Kar, Tugrul

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Ortaokul Yedinci Sınıf Öğrencilerinin Kesirlerle Çıkarma İşlemine Kurdukları Problemlerin Analizi von KAR, Tuğrul, IŞIK, Cemalettin

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Türk ve Amerikan Yedinci Sınıf Matematik Ders Kitaplarının Tamsayılarla Toplama ve Çıkarma İşlemleri Üzerinden Karşılaştırılması von Işık,Cemalettin, Kar,Tuğrul

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The Development of Preschool Students’ Algebraic Thinking Skills: A Case Study Approach von Işık, Cemalettin, Öçal, Tuğba

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Matematik Öğretmeni Adaylarının Sözel ve Görsel Temsillere Yönelik Kurdukları Problemlerin Analizi von Işık,Ahmet, Işık,Cemalettin, Kar,Tuğrul

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