Browsing by Author "Altun, Murat H."

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    High school students' abstraction process of the knowledge of signum functions based on piecewise functions
    (Türk Eğitim Derneği, 2011-10) Altun, Murat H.; Kayapınar, Aslıhan Yılmaz; Uludağ Üniversitesi/Eğitim Fakültesi/Matematik ve Fen Bilimleri Eğitimi.; 56011404800; 56010849300
    In recent years, learning environments have been radically affected by the scientific developments regarding cognitive processes. In our study, we examined high school students' process of abstraction of the knowledge of signum functions in a learning environment created by considering such developments. In the instruction phase, which employed a case study and group studies with two high school students, three specially-designed sequential problems were used. It was observed that the students used the knowledge they had abstracted for the first problem in order to solve the others, and they abstracted the knowledge of piecewise and signum functions accurately to a certain extent. The study also showed that using environmental events and problems to teach about functions strongly contributes to learning.
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    Mathematics teachers’ comments on PISA math questions and our country’s students’ low achievement levels
    (Hacettepe Üniversitesi, 2014) Akkaya, Recai; Altun, Murat H.; Uludağ Üniversitesi/Eğitim Fakültesi.; 56011404800
    Our country's having underachieved repeatedly in the international examinations such as PISA, TIMSS etc., has made us consider that there are some problems related to our education system. The lowness of achievement levels might be affected by many factors such as the student, the program, and the teacher being in the first place. Of these factors, it is the teacher who is of great importance both because of being the person implementing this program and being the factor on the performance of whom measures can be taken easily. Starting from this point on, in the present study, the opinions of teachers about the lowness of students' achievement levels on these exams were examined. To achieve depth in the investigation, first the questions having addressed to students in PISA implementations were asked to the teachers in written form and answers were received and then they were asked for their opinions. The study revealed that the teachers regarded the insufficiency of the contents of the program and that of the teachers' accumulation of knowledge as the main reasons for students' low achievement levels. It has been concluded that working on these two factors and including such kinds of questions within the exams carried out nationally are necessary to increase students' achievement levels.