Thesis Type: Postgraduate
Institution Of The Thesis: Gazi Üniversitesi, Eğitim Bilimleri Enstitüsü, Turkey
Approval Date: 2018
Student: KÜBRA ALTINTAŞ
Supervisor: CENGİZ ÇİNAR
Abstract:This paper investigates the Effect of Problem Based Learning of Circles-Rounds and Polygons on the Van Hiele Geometrical Thinking Level of Secondary School 7th Grade Students. Research is conducted with 117 seventh grade students of a secondary school attached to Ministry of National Education in the second part of 2015-2016 education year. Two group was composed among the students. First group composed of 70 students was educated according to Problem Based Learnig principle and second group composed of 47 students was educated according to the Ministry's curriculum. Control and experimental groups were decided according to average math grades of students who take the math course from the same instructor during the fall semester of 2015-2016. These groups were composed by objective assignment. In this research, semi-experimental pattern with pretest, final test, control, experimental groups was used. To determine the geometrical thinking level of students, Van Hiele Geometry Test which was developed by Usiskin(1982) and adopted Turkish by Duatepe(2000) was used. The research datas are analyzed with SPSS program. The comparison between groups and between pretest and final test evaluations is made according to Van Hiele Geometry test via ANOVA variant analysis method. At the end of the research, it is seen that both methods contribute to the students' level of geometric thinking at five different levels of learning. However, at the beginning level, it has been shown that problem based learning of circles-rounds and polygons has more influence on student achievement than in a teaching environment based on the current program.