Even though the educational researchers have developed and implemented various educational strategies to teach the concepts of the phases of the Moon and the formation of the lunar eclipse more effectively, many studies conducted by them in recent years reveal that the teachers still do not understand the causes and scientific processes related to the phases of the Moon phases and lunar eclipse. In addition, this situation shows that there are deep problems in teaching the subjects of Moon phases and lunar eclipse to students. Examining the main causes of learning difficulties in the phases of the Moon and lunar eclipse, this study is designed on the basis of development and implementation of a project supported by STRCT (The Scientific and Technological Research Council of Turkey) in order to discuss the possible solutions. A 5-day activity program including basic astronomy education was applied to science teachers by using the model developed within the scope of the project, and the changes in mental models of the teachers in the subjects of Moon phases and lunar eclipse were examined. This research was carried out with 29 teachers voluntarily participating in the project in the field of Science. In this study in which qualitative and quantitative data collection methods were applied together, as a result of the evaluation of the obtained data, it was observed that the project was very successful in understanding the phases of the Moon and the causes of the lunar eclipse. The obtained results were interpreted by comparing them with the literature. Son yıllarda eğitim araştırmacılarının yaptığı birçok araştırma, Ay’ın evreleri ve Ay tutulmasının oluşması kavramlarını daha etkili bir şekilde öğretmek için çeşitli eğitim stratejileri geliştirip uygulamalarına rağmen, öğretmenlerin Ay’ın evreleri ve Ay tutulmasının oluşma nedenlerini ve bilimsel süreçlerini hala kavrayamadıklarını ortaya koymaktadır. Bu durum, Ay’ın evreleri ve Ay tutulması konularının öğrencilere öğretilmesinde derin sorunlar yaşandığını göstermektedir. Bu çalışma, Ay’ın evreleri ve Ay tutulması konularındaki öğrenme zorluklarının temel nedenlerinin araştırılarak, olası çözümlerin tartışılması için TÜBİTAK (The Scientific and Technological Research Council of Turkey) tarafından desteklenen bir proje geliştirilmesi ve uygulanması üzerine kurgulanmıştır. Proje kapsamında geliştirilen model kullanılarak fen bilimleri öğretmenlerine temel astronomi eğitimi konularını da kapsayan 5 günlük bir etkinlik programı uygulanmış ve öğretmenlerin Ay’ın evreleri ve Ay tutulması konularındaki zihinsel modellerinin değişimleri incelenmiştir. Bu çalışma Fen Bilimleri alanında projeye gönüllü olarak katılan 29 öğretmen ile gerçekleştirilmiştir. Nitel ve nicel veri toplama yöntemlerinin bir arada kullanıldığı bu araştırmada, elde edilen verilerin değerlendirilmesi sonucu, Ay’ın evreleri ve Ay tutulmasının oluşum nedenlerinin kavranmasında oldukça başarılı olunduğu gözlenmiştir. Elde edilen sonuçlar literatürle karşılaştırılarak yorum yapılmıştır. <p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/edu_01/0743/a.php" alt="Hit counter" /></p>
In this study, the basics of optical system design are presented. It contains a series of formulations ordered by subject areas or topics representing typical lens design tasks and optical system design tasks. Different aspects are covered, such as the definition of starting systems and the creation, evaluation, and optimization of lenses and systems. The formulas of the most critical lens design equations are given in detail in the content of the study. It also provides an overview of basic mathematical models for calculating simple optical components such as single lenses, systems, and achromatic pairs. Such components represent the foundation of any optical system. The literature study on this study determined that studies on lens design in national publications are limited. The study differs in that it clearly articulates the fundamentals of lens design. It is thought that this study will contribute to the literature.
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