Abstract. The purpose of this study is to investigate effects of formative assessment probes in determining 7th grade students' conceptual understanding level on heat and temperature. This research used the survey method implemented with 120 seventh grade students (63 students from Bursa / Yenişehir and 57 students from Gaziantep). Data were collected with three formative assessment probes about heat and temperature concepts, which were developed by Keeley and overlapping with the gains in curriculum. Findings obtained from this study indicated that most of the students in both groups have imperfect knowledge and incorrect alternative concepts about heat and temperature. Also, they often confuse these concepts and bring this faulty knowledge, based on their everyday experiences without questioning or interpretation, to the learning environment. In this study, it is concluded that formative assessment probes are effective in uncovering students' alternative concepts and conceptual understanding levels. Therefore, it is suggested that such probes should be used in other learning areas in science. New learning environments for teachers should be designed to include more information about the effectiveness, availability, and application of formative assessment techniques.
One of the most effective ways of integrating the nature of science in science classes is using the historical developments of scientific discoveries. While studying on science concepts with story based on its history, learners realize why they should learn these concepts and understand the social relevance of science. Storytelling is accepted as a teaching strategy to encourage meaningful learning by allowing learners to increase their motivation, improve their imagination, and allow them to look at situations from different viewpoints. The aim of this study is to carry out two teaching implementations on electricity through stories based on the history of science with the prospective science teachers, and to determine their opinions on the stories based on history of science and the teaching processes. This study has been designed according to a holistic single case descriptive study approach and carried out with 11 volunteering second grade prospective science teachers. The intervention including the stories of the construction of the Tesla coil and the Voltaic pile is planned and conducted in line with the LES model. An interview protocol for determining prospective teachers' opinions on the stories and implementation process was used as data collection tool. As a result of the study, it was seen that story-based teaching process and LES model have positive effect on the prospective teachers' conceptual understandings. Besides, it was determined prospective teachers' have positive attitude and opinions on teaching intervention. It is thought that teaching including stories based on the history of science will support understanding science concepts in any subject.
Öz: Bu çalışma, 2013 ve 2018 Fen Bilimleri Dersi Öğretim Programlarının çeşitli değişkenler açısından karşılaştırılması amacıyla gerçekleştirilmiştir. Çalışmada nitel araştırma yaklaşımı benimsenmiş ve doküman analizi deseninden yararlanılmıştır. Öğretim programlarında benimsenen yaklaşımlar, genel amaçlar ve eğilimler, öğrenme alanları, öğretmen-öğrenci rolleri, benimsenen yöntem ve stratejiler ve ölçme değerlendirme yaklaşımları boyutları altında sunulmuştur. Öğretim programlarında bilgi öğrenme alanında meydana gelen değişimler ise kazanım sayıları, ders saatindeki değişim ve içerikteki değişimler boyutlarında incelenmiştir. Çalışma sonucunda, yeni öğretim programının 21. yüzyıl becerilerinin geliştirilmesini merkeze aldığı belirlenmiştir. Bu doğrultuda, programın uygulayıcıları olan Fen Bilimleri öğretmenlerinin yeterli donanıma sahip olabilmeleri için hizmet öncesi ve hizmet içi eğitimlerle desteklenmeleri önerilmektedir.
Environmental knowledge and awareness of individuals affect their attitudes and behavior toward the environment. In this regard, it is essential to specify how environmental issues are interpreted in individuals’ cognitive structures. This study aims to investigate preservice science teachers’ cognitive structures on environmental issues. The study was conducted with 78 third-year preservice science teachers. The data were collected through a word association test that contains eight stimulus words about environmental problems and protecting the environment. Global warming, greenhouse effect, radiation, and acid rain were chosen for environmental problems; recycling, waste disposal, sustainability, and solar energy were selected for protecting the environment. Besides, preservice science teachers were asked to write a sentence for each stimulus word. Two concept networks were created based on the cut-off point method for the word association test, and content analysis was used for sentences. Besides, by comparing the data obtained from the concept networks and sentence analysis, an attempt was made to obtain more in-depth information. It is concluded that preservice science teachers focused on daily life rather than scientific facts about environmental issues. In this respect, new courses such as Green Chemistry may effectively eliminate alternative conceptions and raise awareness on environmental issues.
This study aimed to investigate the effect of the analytical chemistry laboratory course, designed, and conducted according to the flipped learning approach (FL) on prospective science teachers' meaningful understanding and interpretation of knowledge in the context of the environment. 73 second grade prospective science teachers (PSTs) participated in this action research, and the interventions lasted for thirteen weeks. The analytical chemistry laboratory (ACL) course was reorganized by replacing the traditional laboratory approach with the FL approach that established the context with the environment. The data were obtained through a conceptual understanding test (CUT) which was developed by the researchers, which consisted of five open-ended questions. The CUT was used as a pre-test and post-test along with an interview form. Results showed that the reorganization of the traditional laboratory course in accordance with the nature of action research and its integration with the flipped learning approach had a positive effect on the prospective teachers’ learning and opinions about the course. Also, it was determined that PSTs’ interpretation ability related to environmental problems in the chemical dimension improved significantly. However, despite this increase, it was concluded that they could not reach a sufficient level in terms of producing solutions to environmental problems. Considering that the effectiveness of FL practices both teaching subjects and environmental problems in ACL course, it is thought to be beneficial to use this approach in another laboratory course.
Öğrencilerin fen bilimleri dersine yönelik görüşlerinin ortaya çıkarılması, öğretmenlerin onlarla etkili bir iletişim kurmasına ve uygun problem çözme stratejilerini gerçekleştirmesine imkân verecektir. Öğrencilerin fenne yönelik görüşlerini, algılarını, tutumlarını, beklentilerini ve önyargılarını dikkate alma, kavramsal öğrenmenin gerçekleşmesine ve akademik başarının artmasına katkı sağlayacaktır. Mevcudun yüksek ve zamanın kısıtlı olduğu sınıflarda kullanım kolaylığı sağlayan ve karmaşık kavramların ifade edilmesinde açık uçlu bir sorgulama yaklaşımı olan çizim yöntemi, öğrencilerin zihinsel imajlarının belirlenmesinde sıklıkla tercih edilmektedir. Çizimlerin ardından yapılacak sözlü veya yazılı açıklamalar öğrencilerin çizdikleri duruma yükledikleri anlamların açığa çıkarılmasına katkı sağlayacaktır. Bu bağlamda, çalışmanın amacı, beşinci, altıncı ve yedinci sınıf öğrencilerinin fen bilimleri dersine yönelik imajlarının çizimler ve yazılı açıklamalar aracılığıyla belirlenmesidir. Enlemsel araştırma yöntemi ile yürütülen çalışmaya, 45 beşinci, 19 altıncı ve 25 yedinci sınıf öğrencisi katılmıştır. Öğrencilerden Fen Bilimleri dersine yönelik düşüncelerini resmetmeleri ve çizdikleri resimleri yazılı olarak açıklamaları istenmiştir. Elde edilen bulgularda, öğrencilerin Fen Bilimleri dersini konu alanları, bilim insanları, öğretmen, öğrenme ortamı, derse yönelik duygu ve düşünceler gibi pek çok boyutla ilişkilendirdikleri belirlenmiştir. Bu tür çalışmaların, öğrencilerin derse yönelik kaygıları, beklentileri, ihtiyaçları veya kariyerlerinin planlanmasında öğretmenlere rehberlik edeceği düşünülmektedir. Anahtar sözcükler: Fen bilimleri dersi, çizim yöntemi, öğrenci imajları.
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