ÖzetLimit, güçlü bir matematiksel düşünme becerisi gerektiren, öğrencilerin öğrenmede zorlandıkları bir kavramdır. Öğrencilerde limit kavramına yönelik, kavram imajlarının ve kavram tanımlarının araştırılmasının, limit kavramının öğrenilme süreçlerinin belirlenmesine katkı getireceği düşünülmektedir. Bu çalışmada, tek değişkenli reel AbstractLimit is the concept that students have difficulties and is required to powerful mathematical thinking skill. To investigate students' concept definitions and concept images about limit concept is important to reveal learning processes of limit concept.The purpose of the study is to determine students' concept images, concept definitions and relationships between students' concept images and formal definition about limit concept for one variable real valued functions. The study was conducted with 11 students who were selected from 31 students attending Analysis I course. Criterion sampling method that is a purposive sampling method was used in selection of the students. After teaching process of limit concept, a test which had open-ended questions was carried out to 31 students. Responses of students were analyzed qualitatively by researchers. With regard to analyses, the students were classified into eight groups using their concept images, concept definitions and relationships between their concept images and formal definition of limit as criterions. Eleven students were selected from groups according to group sizes to carry out clinical interviews. The clinical interviews were analyzed qualitatively by researchers. Consequently, it was found that both students' concept images and concept definitions focused on the theorem about equality of right and left hand limits and dynamic form of limit. Moreover, the students had difficulties in explaining and using the formal definition of limit. In addition, students used their concept images to solve questions and most of them could not establish the relationship between their concept images and formal definition of limit.
Öz: Bu çalışmada ortaokul matematik öğretmeni adaylarının matematik okuryazarlıklarının matematik öğretmenliği lisans programındaki gelişiminin bazı PISA soruları üzerinden incelenmesi amaçlanmaktadır. Nitel olarak desenlenen çalışmanın katılımcılarını dördüncü ya da altıncı yarıyılında olan 22 öğretmen adayı oluşturmaktadır. İki aşamadan oluşan çalışmanın ilk aşamasında 22 katılımcının matematik okuryazarlıkları beş PISA sorusundan oluşan test ile incelenmiştir. Çalışmanın ikinci aşamasında ise bu katılımcılardan ölçüt örnekleme yöntemiyle seçilen beş katılımcı ile mezun olduklarında, ilk aşamadaki PISA soruları kullanılarak yaklaşık doksan dakika süren klinik görüşmeler yapılmıştır. Testten ve klinik görüşmelerden elde edilen veriler nitel olarak analiz edilmiştir. İlk aşamanın sonuçlarına göre katılımcıların matematikleştirmede, özellikle problemdeki değişkenler arasındaki ilişkileri oluşturma ve grafik yorumlamada zorlandıkları, matematik okuryazarlıklarının ise beklenen düzeyde olmadığı görülmüştür. Katılımcıların dördüncü yarıyıldan mezuniyete kadar matematik okuryazarlıklarında ise gelişim olmamış, matematikleştirmedeki güçlükleri devam etmiştir. Bunun yanı sıra katılımcılar PISA sorularının amaçlarını, matematik okuryazarlığına değer verme bağlamında değil daha çok sorularda ölçülen kavram bilgisi ve matematiksel beceriler açısından değerlendirmişlerdir. Katılımcılar zorlandıkları PISA soruları haricindeki soruların ortaokul öğrencilerine uygun olduğunu ifade edebilmişlerdir.Abstract: This study aims to investigate development of middle school pre-service mathematics teachers' mathematical literacy through teacher education program on some PISA items. Participants of this qualitative study were 22 pre-service teachers who were at fourth or sixth term. In first section, a test consisted of 5 PISA items was carried out with participants. In second section, clinical interviews with same PISA items lasted approximately ninety minutes were conducted with selected five participants via criterion sampling from 22 graduated participants. Data from test and clinical interviews were analysed by qualitative methods. According to the results of first section, participants had difficulties in mathematization, especially making relations between variables in the problem, interpreting graphics and participants' mathematical literacy was not desirable. Participants could not progress in mathematical literacy from fourth term to graduation, had still difficulties in mathematization. Besides, participants assessed aims of items in the context of concept knowledge, mathematical abilities related to items not in the context of attaching importance to mathematical literacy. Participants could assess appropriateness of items for middle grades except difficult items for them.
This article was checked by Intihal.net. Bu makale İntihal.net tarafından taranmıştır. This article is under the Creative Commons license. Bu makale Creative Commons lisansı altındadır.
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