Physics is directly related to various professions since it is a fundamental science. Opticianry is one of such physics related professions. In this study, it was aimed to determine the conceptual understanding levels of opticians related to the concepts of light and optics which are directly related to their professions. In the study, which was conducted via mixed method, the participants were determined with the convenient sampling method. A total of 203 opticians attended the study. Data were collected with the help of Light and Optics Conceptual Evaluation Test in addition to the Open-Ended Questions and Concept Cartoons selected from the literature. As a result of the study, it was reached that the conceptual understanding levels of opticians were low with several misconceptions and insufficiencies related to the light and optics concepts. In the light of the findings, the importance of physics education for opticianry was implied.
The target of this study is to determine the minimum angle of deviation of a prism which is one of the optical experiments. Thus, the aim is to state the refractive index of a prism. In this context, the Tracker program, which might also be utilized in terms of distance education purposes, was preferred. The videos of the experiments were recorded with the help of a smartphone. The study showed that the refractive indexes of the prisms which were made of glass and acrylic with different apex angles could be determined with a high level of accuracy as a result of the analysis of videos which were recorded with two different methods. It is believed that the study provides insights for both the conduction of laboratory courses via distance education and for performing experiments for students who do not have access to proper laboratory equipment.
Bu çalışmada ortaöğretim öğrencilerinin fizik dersine ait motivasyon düzeylerini belirlemeye yönelik bir ölçeğin geliştirilmesi amaçlanmıştır. Fizik Dersi Motivasyon Ölçeği (FDMÖ)'nin geliştirilmesinde ilk olarak; Tuan, Chin ve Shieh (2005), Dede ve Yaman (2008) ile Glynn vd. (2011) tarafından geliştirilen ölçeklerden yararlanarak madde havuzu oluşturulmuştur. Ardından ölçeğin kapsam geçerliği için eğitim bilimci ve alan eğitimcisi uzmanların görüşüne başvurulmuştur. Uzman görüşü doğrultusunda 55 maddeden oluşan ölçeğin ilk hali oluşturulmuştur. FDMÖ'nün 55 maddelik ilk hali, Türkiye'nin üç farklı bölgesindeki fen ve anadolu liselerinde öğrenim gören 492 ortaöğretim öğrencisine uygulanmıştır. Ölçeğin yapı geçerliğinin belirlenmesi için açımlayıcı faktör analizi (AFA) yapılmış, elde edilen faktör yapısının uygunluğunu test etmek için doğrulayıcı faktör analizi (DFA) gerçekleştirilmiştir. AFA sonuçları 38 maddenin yedi faktörde toplandığını göstermektedir. Yedi faktörün toplam varyansa yaptığı katkı %57.50 olup, faktör yükleri .47 ile .85 arasında değişmektedir. DFA analizi sonucunda elde edilen uyum indekslerinin kabul edilebilir düzeyde olduğu bulunmuştur. Ölçeğin faktörlerinin güvenirliği için hesaplanan Cronbach alpha katsayıları .60 ile .87 arasında değişirken, ölçeğin tümü için Cronbach alpha iç tutarlılık katsayısı .92 olarak hesaplanmıştır. Çalışma bulguları geliştirilen ölçeğin ortaöğretim öğrencilerinin fizik dersine yönelik motivasyon düzeylerinin belirlenmesinde, geçerli ve güvenilir bir ölçme aracı olarak kullanılabileceğini göstermektedir.
-This study involves the adaptation of a scale into Turkish which is developed by Thomas, Anderson and Nashon (2008) to investigate elements of students' metacognition, self-efficacy and constructivist science learning processes. In this context linguistic equivalence, validity and reliability analyses were conducted. The scale was administered to 913 secondary school students aged between 15 and 18 years of age in four cit ies of
In electromagnetism, to determine the direction of the electromagnetic force and magnetic field, the right-hand rule (RHR) is used. Previous researches show that students have difficulty in applying the RHR. This research is aimed to find out the factors which make it difficult for the students to apply the RHR. To achieve this, qualitative case study design is used and 270 students who took Basic Physics II course at university participated. The Right-Hand Rule-Diagnostic Test (RHR-DT) and the unstructured interview were used as data collection tools. In the analysis of the data, firstly, the right-hand types used by the students were determined. Then the right-hand types used by the students in the solution of each task are presented. After that, eight of these students were interviewed about their RHR-DT answers and those interviews were video recorded. Video recordings are divided into three categories according to the level of students: upper, middle and lower. According to the results of this research, it can be said that the conceptual understanding of electromagnetism, the vector algebra and spatial cognition effect the usage of the RHR. In the light of research results, suggestions were made for the teaching of RHR to physics teachers. Keywords: magnetism education, right-hand rule, conceptual understanding, vector algebra, spatial cognition.
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