Yazar "Cardak, Osman" seçeneğine göre listele

Listeleniyor 1 - 4 / 4
  • Küçük Resim Yok
    Öğe
    The determination of the knowledge level of science students on energy flow through a word association test
    (SILA SCIENCE, 2009) Cardak, Osman
    This study aimed to diagnose the cognitive structure of university science pupils regarding the topic energy relationships and energy flow in organisms. The study was carried Out using a word association test on 150 students studying at the Selcuk University. A word association test comprising 10 key concepts 'sunlight energy, photosynthesis, respiration, producer, consumer, separator, oxygen, carbon dioxide, ATP, glucose' was applied to the students, and concept maps were drawn according to the frequency table prepared from the answers given to the chosen key concepts. It is seen that the highest number of associations are, in descending order, Sunlight - photosynthesis, producer - plants and discriminator saprophyte. Although the students have responded to all the key concepts, it Could be observed that they do not perceive the relationship between the concepts as a complete network. From this result, it is apparent that students experience very limited cognitive learning during their education. The proposal was developed on the importance of research results from the perspective of biology education, and the use of word association tests as all educational tool.
  • Küçük Resim Yok
    Öğe
    Science Student Teachers' Ideas about the 'Gene' Concept
    (ELSEVIER SCIENCE BV, 2011) Dikmenli, Musa; Cardak, Osman; Kiray, S. Ahmet
    The purpose of this study is to investigate science student teachers' ideas about the 'gene' concept. This study focuses on the following questions: What kind of descriptions do science student teachers ascribe to gene? What categories can be derived from these descriptions in terms of common features? A total of 140 participating students, who were studying to become primary science teachers at the Ahmet Kelesoglu Faculty of Education of Selcuk University in Turkey, participated in this study. To reveal participating students' ideas about the 'gene' concept they were asked to respond two open questions: (1) What is a gene in your opinion? (2) The participating students were asked to complete a free word association test. In the test, the term 'gene' was presented as a stimulus word. Data obtained from the questions were analyzed and the frequencies of the responses were classified in different categories. The results are compared with related literature and recommendations are provided.
  • Küçük Resim
    Öğe
    Science student teachers' metaphors for scientists
    (SILA SCIENCE, 2012) Dikmenli, Musa; Cardak, Osman; Yener, Dundar
    The purpose of this study is to investigate science student teachers' perceptions of the concept of 'scientists' by means of metaphor analysis. This study focuses on the following questions: (1) what are the metaphors produced by science student teachers to describe 'scientists'? (2) what categories of common features can be derived from these metaphors? The study was carried out among the 1(st), 2(nd), 3(rd) and 4(th) grade students studying in the Programme of Primary Science Education at Selcuk University in November 2010. Data were collected from 374 participating students using an open-ended questionnaire and analysed using content analysis techniques. As a result of the data analysis, it was found that 85 valid metaphors were developed by the participating students. These metaphors were classified using nine conceptual categories: (1) the scientist as a hardworking and productive figure; (2) the scientist as a wise figure; (3) the scientist as a figure devoting himself/herself to humanity; (4) the scientist as a figure steering the society; (5) the scientist as a curious figure; (6) the scientist as an antisocial figure; (7) the scientist as a questioning-researching figure; (8) the scientist as an objective figure, and (9) the scientist as a mad figure. The results of this study have shown that, as well as having primarily positive perceptions of the concept of a 'scientist', science student teachers also have some negative perceptions and utilise stereotypical images, such as in the categories of the scientist as an asocial figure and the scientist as a mad figure. These results are compared with the relevant literature and recommendations are provided.
  • Küçük Resim Yok
    Öğe
    Science students' misconceptions about birds
    (ACADEMIC JOURNALS, 2009) Cardak, Osman
    The aim of this study was to determine the misconceptions of science students attending the university on the classification and behaviour of birds, and their interaction with people. For this purpose, open questions, interviews and drawing methods were directed at 110 university science students. As a result of the analysis of data obtained, it was determined that the science students surveyed had various misconceptions with regard to the classification and behaviour of birds, and their interaction with people. Some of these misconceptions are described for the first time (the gizzard in their maw provides the digestion). Some suggestions have been put forward in light of findings both in the literature and the findings of this study.