temel kösa | Karadeniz Technical University (original) (raw)

Papers by temel kösa

Participatory Educational Research

This study aims to examine the contribution of ArtiBos, which is designed as a Gamified Adaptive ... more This study aims to examine the contribution of ArtiBos, which is designed as a Gamified Adaptive Intelligent Tutoring System for students' problem-solving skills. In the study, first of all, the system’s design features to improve problem-solving skills were examined, and then the effect of the system on problem-solving skills was evaluated. The study was carried out with 12 students studying in the ninth class of a High School in Türkiye and 6 mathematics teachers with different experiences working in the same school. A case study, one of the qualitative research methods were applied in this study through which ArtiBos system logs, student interviews, and teacher interviews were evaluated. Data pertaining to the number of solved problems, the number of problems created, the number of problems solved correctly, the duration of being online in the system, the rate of correct problem-solving, and the average solving time were examined to evaluate system logs. Interview questions h...

Turkish Journal of Computer and Mathematics Education (TURCOMAT), 2021

In this study, determining the design principles of a technology-supported learning environment f... more In this study, determining the design principles of a technology-supported learning environment for teaching vector spaces by taking into account the representation languages defined by Hillel (2000), Harel's (2000) pedagogical principles and Sierpinska's (2000) thinking modes on Linear Algebra teaching were intended to be established. The research is a design-based research and three cycles were conducted to determine the design principles for the learning environment. The study group of the first cycle consists of 51, the second cycle's working group was 44, and the third cycle's study group consisted of 11 teacher candidates. The data of the research were obtained by field notes and video recordings. By analyzing the field notes and video recordings, design principles for the learning environment were determined after the first two cycles in light of the literature. The third cycle was carried out with the determined design principles, and the design principles were revised in line with the opinions of the teacher candidates and the course teacher after the application with the reports obtained during the application process. Design principles in the light of the results obtained from the research are as follows ; the use of technology, usage of modes of description, tasks, worksheets, the role of the teacher and group work. It is thought that a learning environment that will be created by paying attention to these design principles will contribute to the pre-service teachers' differentiation and use of different languages, the development of thinking styles, and to meet the principles of concreteness, necessity and generalizability.

Education Sciences, 2010

Geometri mufredatinda ogrencilerin ogrenmekte gucluk cektigi derslerden bir tanesi Uzay Geometri’... more Geometri mufredatinda ogrencilerin ogrenmekte gucluk cektigi derslerden bir tanesi Uzay Geometri’dir. Bu calismada, Uzay geometrinin bir konusu olan dik izdusumune yonelik calisma yapraklari gelistirilmis ve bu calisma yapraklarinin uygulanabilirligi incelenmistir. Hazirlanan calisma yapraklari Trabzon’daki bir lisede 36 ogrenciden olusan bir 12. sinifta uygulanmistir. Calismanin sonunda Cabri 3D gibi uc boyutlu dinamik geometri yazilimi kullanmayi gerektiren calisma yapraklarinin uzay geometrinin konularinin ogretiminde kolaylik sagladigi, ogrencilere zevkli geldigi, onlari derse karsi motive ederek derse karsi olan ilgilerini artirdigi gorulmustur. Arastirmanin sonuclarina dayanarak bu turden calisma yapraklarinin uzay geometrinin diger unitelerine de hazirlanmasi onerilmektedir.

Solid Geometry is one of the topics that students have difficulties in Geometry. In this study, w... more Solid Geometry is one of the topics that students have difficulties in Geometry. In this study, worksheets about projections were developed and it was investigated the applicability of the worksheets in real class environment. Worksheets were applied in a secondary school 12 th grade class which consisted of 36 students in Trabzon. Results of the study show those worksheets which required using three-dimensional dynamic geometry software such as Cabri 3D facilitate to learn the topics of Space Geometry and using dynamic geometry software in geometry class made students pleasant. Another important result is that these kinds of worksheets enhance students‟ interests to the lesson. Based on this study, that kind of worksheets which required using dynamic geometry software should be developed for other topics in Space Geometry.

Bu calismanin temel amaci, 4MAT ogretim modeline gore tasarlanan ogrenme ortaminin geometrik cisi... more Bu calismanin temel amaci, 4MAT ogretim modeline gore tasarlanan ogrenme ortaminin geometrik cisimler konusunun ogretimi uzerindeki kalicilik etkisini incelemektir. Yari-deneysel yontemle yurutulen arastirmanin orneklemini Trabzon’da bir ortaokuldaki 41’i deney ve 45’i kontrol grubunda bulunan toplam 86 ogrenci olusturmaktadir. Calismada veriler arastirmacilar tarafindan gelistirilen On Bilgi Testi (OBT), Basari Testi (BT), Kalicilik Testi ve Kolb tarafindan gelistirilen Ogrenme Stili Envanteri (OSE) ile toplanmistir. Arastirmadan elde edilen sonuclar; 4MAT ogretim modeline gore yurutulen derslerin ogrencilerin basarilari uzerinde daha etkili oldugunu ve daha kalici ogrenmeler gerceklestirdigini gostermektedir. Yine arastirma sonuclari; ogrencilerin akademik basarilari uzerinde ogretim yontemi ve ogrenme stilinin ortak etkisinin anlamli olmadigini gostermistir. Bu baglamda derslerinde farkli yontem, teknik ve strateji kullanacak ogretmenlere, oncelikle ogrencilerinin ogrenme stiller...

Turkish Journal of Computer and Mathematics Education (TURCOMAT), 2018

Öz: Bu çalışmanın temel amacı, 4MAT öğretim modeline göre tasarlanan öğrenme ortamının geometrik ... more Öz: Bu çalışmanın temel amacı, 4MAT öğretim modeline göre tasarlanan öğrenme ortamının geometrik cisimler konusunun öğretimi üzerindeki kalıcılık etkisini incelemektir. Yarı-deneysel yöntemle yürütülen araştırmanın örneklemini Trabzon'da bir ortaokuldaki 41'i deney ve 45'i kontrol grubunda bulunan toplam 86 öğrenci oluşturmaktadır. Çalışmada veriler araştırmacılar tarafından geliştirilen Ön Bilgi Testi (ÖBT), Başarı Testi (BT), Kalıcılık Testi ve Kolb tarafından geliştirilen Öğrenme Stili Envanteri (ÖSE) ile toplanmıştır. Araştırmadan elde edilen sonuçlar; 4MAT öğretim modeline göre yürütülen derslerin öğrencilerin başarıları üzerinde daha etkili olduğunu ve daha kalıcı öğrenmeler gerçekleştirdiğini göstermektedir. Yine araştırma sonuçları; öğrencilerin akademik başarıları üzerinde öğretim yöntemi ve öğrenme stilinin ortak etkisinin anlamlı olmadığını göstermiştir. Bu bağlamda derslerinde farklı yöntem, teknik ve strateji kullanacak öğretmenlere, öncelikle öğrencilerinin öğrenme stillerini belirlemeleri önerilmektedir.

Turkish Journal of Computer and Mathematics Education (TURCOMAT), 2019

In this study, a general analytical model called Bag of Solution (BOS) was developed to help stud... more In this study, a general analytical model called Bag of Solution (BOS) was developed to help students understand and solve mathematical problems. The model is based on graph theory, a topic under discrete mathematics. The types of problems to be modelled for BoS were determined by looking at densities of the problems in the central placement examinations and exam preparation books. As a result, three types of problems were selected; namely Mixture, Worker and Motion problems. In order to develop a common model for solution of the three types of problems, a total of 1509 mixture, worker and movement problems were examined. After the analysis, the problem types were taken together, and variable relations were determined, and a common graph model was created. Since it is an algorithmic model, it allows solving problems both by paper and pencil and computer. This study proves that different types of problems (with different scenarios, objects and object relations) can be solved using a single model. It is expected that the BoS developed in this study will offer two benefits. It is hoped to both provide an algorithmic basis for computer-aided instructional materials, adaptive systems and intelligent tutoring systems to be developed for problem solving and also help students to develop a new understanding of the problem-solving process. A common graph structure that can covers the entirety of a problem can allow students to construct their own learning while solving the problem step by step.

Turkish Online Journal of Qualitative Inquiry, 2019

This study aims at examining the usability evaluation process of ArtiBos, an adaptive intelligent... more This study aims at examining the usability evaluation process of ArtiBos, an adaptive intelligent tutoring system specifically designed for teaching of problem solving, and proposing usability evaluation recommendations accordingly. The study group consists of 90 students selected from 3 different secondary education institutions and 30 experts from the fields of Computer Education and Instructional Technology and Mathematics Teaching. The usability of ArtiBos is evaluated according to the criteria of effectiveness, efficiency, and satisfaction included in the definition of usability by the International Standards Organization (ISO). In this study, quantitative and qualitative data were used for triangulation. Study data included users' screenshots during performance of the instructed tasks in ArtiBos, sound recordings taken from the think aloud technique, interviews with students, and opinions of experts. The study elaborates the procedure of usability tests of ArtiBos and makes suggestions for usability evaluation processes of similar systems. The results are expected to guide researchers planning to carry out similar systems' usability studies.

Dicle Üniversitesi Ziya Gökalp Eğitim Fakültesi Dergisi, 2016

Bu araştırmada, çok küplü geometrik yapılar konusunun öğretiminde üç boyutlu dinamik geometri yaz... more Bu araştırmada, çok küplü geometrik yapılar konusunun öğretiminde üç boyutlu dinamik geometri yazılımı Cabri 3D'nin kullanımına yönelik öğrenci görüşlerinin ortaya çıkarılması amaçlanmıştır. Bu doğrultuda, bilgisayar desteğiyle zenginleştirilmiş bir öğrenme ortamı hazırlanarak çok küplü geometrik yapılar konusu bu ortamda yedinci sınıf öğrencilerine uygulanmış ve bu öğrencilerden dokuzuyla görüşmeler yapılmıştır. Özel durum çalışması yöntemiyle yürütülen çalışmadan elde edilen veriler, içerik analiziyle çözümlenmiştir. Öğrenciler tasarlanan öğrenme ortamının kolaylık, olumlu tutum gelişimi, aktifliğin artması, yazılımı kullanmanın faydaları gibi güçlü yönlerinin olduğunu, bundan sonraki derslerinde bilgisayarla zenginleştirilmiş öğrenme ortamında ders işlemek istediklerini belirttikleri görülmüştür. Bilgisayar destekli öğrenme ortamının sıkılma, yazılımı kullanmadan kaynaklanan birtakım zayıf yönlerinin olduğu belirtilmiştir. Araştırmanın sonuçları doğrultusunda öğrencilerin süreç içerisinde karşılaştıkları olumsuzlukların azaltılarak onların bilgisayar destekli öğrenme ortamlarını benimsemesi için uygulamalar yapılması önerilmektedir.

Educational Research and Reviews, 2016

The purpose of this study was to investigate the effects of using dynamic geometry software on pr... more The purpose of this study was to investigate the effects of using dynamic geometry software on preservice mathematics teachers' spatial visualization skills and to determine whether spatial visualization skills can be a predictor of success in learning analytic geometry of space. The study used a quasiexperimental design with a control group. There were 46 students in the experimental group and 48 students in the control group. The Purdue Spatial Visualization Test (PSVT) was applied as both preand post-test to measure the students' spatial visualization skills. Furthermore, the Prior Knowledge Test (PKT) was administered at the beginning of the study to measure their prior knowledge, and the Academic Achievement Test (AAT) was used to evaluate their ability in analytic geometry of space. The results of the study showed that using dynamic geometry software was effective for improving students' spatial visualization skills. It was also found that spatial visualization skills are a significant predictor of success in spatial analytic geometry.

European Journal of Engineering Education, 2017

ABSTRACT The purpose of this study was to determine the influence of computer-aided design (CAD) ... more ABSTRACT The purpose of this study was to determine the influence of computer-aided design (CAD) software-based instruction on the spatial visualisation skills of freshman engineering students in a computer-aided engineering drawing course. A quasi-experimental design was applied, using the Purdue Spatial Visualization Test-Visualization of Rotations (PSVT:R) for both the pre- and the post-test. The participants were 116 freshman students in the first year of their undergraduate programme in the Department of Mechanical Engineering at a university in Turkey. A total of 72 students comprised the experimental group; they were instructed with CAD-based activities in an engineering drawing course. The control group consisted of 44 students who did not attend this course. The results of the study showed that a CAD-based engineering drawing course had a positive effect on developing engineering students’ spatial visualisation skills. Additionally, the results of the study showed that spatial visualisation skills can be a predictor for success in a computer-aided engineering drawing course.

Turkish Journal of Computer and Mathematics Education (TURCOMAT), 2015

Bu çalışmada, analitik geometri kavramlarının öğretiminde GeoGebra' nın potansiyeli incelenmiştir... more Bu çalışmada, analitik geometri kavramlarının öğretiminde GeoGebra' nın potansiyeli incelenmiştir. Özel durum çalışması yöntemiyle yürütülen bu araştırmanın katılımcılarını, ilköğretim matematik öğretmenliği 3. sınıfa devam eden 6 öğretmen adayı oluşturmaktadır. Katılımcılar kendini ifade etme becerisi yüksek, mülakata gönüllü ve farklı başarı düzeyinde (yüksek, orta, düşük) olan ikişer öğretmen adayından oluşmaktadır. Çalışmada analitik geometri dersleri, araştırmacılar tarafından geliştirilen çalışma yaprakları kullanılarak yürütülmüştür. Araştırmanın verileri derslerin sonunda yapılan yarı yapılandırılmış mülakatlarla toplanmıştır. Araştırmadan elde edilen veriler, içerik analizi yöntemi ile analiz edilmiştir. Araştırma sonuçları öğretmen adaylarının analitik geometri kavramlarını öğrenmede yazılımı kullanmalarının onlara kolaylık sağladığını, yazılımı kullandıkları öğrenme ortamında kendilerini daha aktif hissettiklerini göstermiştir.

Technology, Knowledge and Learning, 2014

This column will publish short (from just a few paragraphs to ten or so pages), lively and intrig... more This column will publish short (from just a few paragraphs to ten or so pages), lively and intriguing computer related mathematics vignettes. These vignettes or snapshots should illustrate ways in which computer environments have transformed the practice of mathematics or mathematics pedagogy. They could also include puzzles or brain-teasers involving the use of computers or computational theory. Snapshots are subject to peer review. From the Column Editor Uri Wilensky, Northwestern University.

The International Journal for Technology in Mathematics Education, 2016

Kastamonu Üniversitesi Kastamonu Eğitim Dergisi

... Jones, K. (1999). Student interpretations of a dynamic geometry environment. In, Schwank, Ing... more ... Jones, K. (1999). Student interpretations of a dynamic geometry environment. In, Schwank, Inge (ed.) European Research in Mathematics Education. Osnabruck, Germany, Forschungsinstitut fur Mathematikdidaktik, 245-258. ...

British Journal of Educational Technology, 2009

The study compared the effects of dynamic geometry software and physical manipulatives on the spa... more The study compared the effects of dynamic geometry software and physical manipulatives on the spatial visualisation skills of first-year pre-service mathematics teachers. A pre- and post-test quasi-experimental design was used. The Purdue Spatial Visualisation Test (PSVT) was used for the pre- and post-test. There were three treatment groups. The first group (n = 34) used Dynamic Geometry Software (DGS) Cabri 3D as a virtual manipulative and the second group (n = 32) used physical manipulatives. In the control group (n = 30), the students received traditional instruction. The results of the study showed that physical manipulatives and DGS-based types of instruction are more effective in developing the students' spatial visualisation skills than traditional instruction. In addition, students in the DGS-based group performed better than the physical manipulative-based group in the views section of the PSVT.