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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of The Korean Association For Science Education
Journal Basic Information
Journal DOI :
The Korean Association for Research In Science Education
Editor in Chief :
Volume & Issues
Volume 27, Issue 9 - Dec 2007
Volume 27, Issue 8 - Nov 2007
Volume 27, Issue 6 - Oct 2007
Volume 27, Issue 7 - Oct 2007
Volume 27, Issue 5 - Aug 2007
Volume 27, Issue 4 - Apr 2007
Volume 27, Issue 3 - Apr 2007
Volume 27, Issue 2 - Mar 2007
Volume 27, Issue 1 - Feb 2007
Selecting the target year
Comparison of the Features of Science Language between Texts of Earth Science Articles and Earth Science Textbooks
Lee, Jeong-A ; Kim, Chan-Jong ; Maeng, Seung-Ho ;
Journal of The Korean Association For Science Education, volume 27, issue 5, 2007, Pages 367~378
The purpose of this study is to investigate the features of science language in Earth science textbooks and Earth science research articles. We examined two Earth science textbooks and two Earth science articles using the taxonomy of scientific words, the text structure analysis of explanations, the analysis of conjunctive relations and reasoning, and the function of conjunction. The results showed that school science language revealed in Earth science textbooks had high proportion of naming words and the text structures in which definition/exemplification structure and description structure were dominant. Also, internal relations that showed additional arrangement rather than logical inference, were predominant in Earth science textbooks. However, scientists' science language revealed in the Earth science articles had more proportion of process words and concept words than the Earth science textbooks and the schematic structure of explanation texts, such as orientation - implication sequence - conclusion. In addition, the text structures in each sentences of implication -sequence showed cause/effect or problem-solving after description structures. Also each sentences expressed causal or abductive reasoning through the internal relations using verbs or adverbial inflection. It is necessary that we bridge the gap between the two languages for students' authentic use of science language. For the bridging, we propose "interlanguage", which mediates between school science language and scientists' language.
Analysis of High School Students' Conceptual Change in Model-Based Instruction for Blood Circulation
Kim, Mi-Young ; Kim, Heui-Baik ;
Journal of The Korean Association For Science Education, volume 27, issue 5, 2007, Pages 379~393
The purpose of this article is to analyze the conceptual change of nine 11th graders after implementing the model-based instruction of blood circulation by multidimensional framework, and to find some implications about teaching strategies for improving conceptual understanding. The model-based instruction consisted of 4 periods: (1) introduction for inducing students' interests using an episode in the science history of blood circulation, (2) vivisectional experiment on rats, (3) visual-linguistic model instruction using the videotape of heartbeat, and (4) modeling activity on the path of blood flow. Based on the data from pre-test, post-test and interviews, we classified students' models on the path of blood flow, and investigated their ontological features and the conceptual status of blood circulation. Most students could describe the path of blood flow and the changes of substances in blood precisely after the instructions. However, the modeling activity were not sufficient to improve students' understanding of the mechanisms of the blood distribution throughout various organs and the material exchanges between blood and tissues. From the interview of 9 students, we acquired informative results about conceptual status elements that were helpful to, preventing from, or not used for students' understanding. It was also found that conceptual status of students depended on the ontological categories into which students' conceptions of blood circulation fell. The results of this study can help design the effective teaching strategy for the understanding of concept of the equilibrium category.
The Effects of Reciprocal Peer Questioning Strategy in Concept Learning on the Three States of Matter and Motion of Molecules
Kim, Kyung-Sun ; Kim, So-Yeon ; Lee, Jung-Min ; Noh, Tae-Hee ;
Journal of The Korean Association For Science Education, volume 27, issue 5, 2007, Pages 394~403
In this study, the effects of reciprocal peer questioning (RPQ) strategy upon students' concept learning were investigated. Ninety-two seventh graders at a co-ed middle school were assigned to control, reciprocal peer tutoring (RPT), and RPQ groups. The students were taught about 'three states of matter' and 'motion of molecules' for 12 class hours. Regardless of students' prior science achievement level, the RPQ group showed the highest scores among the three groups in the test of conceptual understanding, and the RPT group performed better than the control group. For high-level students, the scores of the RPQ group were significantly higher than those of the other groups in the test of the concept application, and those of the RPT group were higher than those of the control group. For low-level students, the scores of the RPT and RPQ groups in the concept application test were significantly higher than those of the control group, while those of the RPT and RPQ groups were not significantly different. These results indicated that verbal interaction by reciprocal tutoring helped students to understand chemical concept learning, and that using self-generated questions was more effective. Therefore, RPQ strategy is suggested to become one of the useful instructional methods to facilitate verbal interaction and concept learning in middle school science instructions.
The Types of Explanation about Different Experimental Data with Students' Preconceptions on Physical Experiment
Byun, Young-Chan ; Kim, Ji-Na ;
Journal of The Korean Association For Science Education, volume 27, issue 5, 2007, Pages 404~411
The purpose of this study was to examine the types of explanation about different experimental data on students' preconceptions on physical experiment. 45 students were selected from P University by examining their pre-test. The subjects had a scientific conception about a simple pendulum's period of movement, and expected that there was no change in the movement even when the mass of water increased in the can. The students were presented data about pendulum movement inside a can. They recorded this in a blank table and drew a graph about the movement of the pendulum. The responses of students were tested by presenting written anomalous experimental data. Students' recognition, trust about the anomalous data, cognitive conflict, belief change about their preconceptions were examined with written tests also. To measure students' cognitive conflict levels, CCLT (Cognitive Conflict Levels Test) developed in a previous study was used. Some students responded based on preconceptions and regarded the data as manufactured data or experimental error. The students who recognized the anomaly in the situation showed higher cognitive conflict levels than those who didn't recognize the anomaly in the situation. The students who changed their beliefs about preconceptions recognized the data as anomalous situations and showed high cognitive conflict levels than those who didn't abandon their preconceptions. The students who have unchanged beliefs about their preconceptions regarded the data as experimental error.
The Influences of Epistemological Beliefs on the Conceptual Change Processes in Learning Density
Kang, Hun-Sik ; Kim, Min-Young ; Noh, Tae-Hee ;
Journal of The Korean Association For Science Education, volume 27, issue 5, 2007, Pages 412~420
In this study, we investigated the influences of the epistemological beliefs on the conceptual change processes in respects of cognitive conflict, situational interest, attention and state learning strategies. After administering epistemological belief questionnaire as a pretest, 218 seventh graders possessing misconceptions about density were selected from the results of a preconception test. The questionnaires of responses to a discrepant event and situational interest were administered. After learning with a CAI program, attention test, state learning strategy test and conception test were also administered as post-tests. Analysis of the results revealed that fixed ability, quick learning and certain knowledge, which are epistemological factors, were highly related, but only certain knowledge exerted a direct effect on conceptual understanding negatively. It also had positive effects on attention directly as well as via situational interest, and thus increased conceptual understanding, even if the effects were relatively smaller than the direct effect. However, epistemological beliefs had little influence on conceptual understanding through cognitive conflict and/or state learning strategies.
Analyses of the Basic Inquiry Process in Korean 3-10 Grade Science Textbooks: Focused on Observation and Measurement
Park, Bo-Hwa ; Kim, Hee-Kyong ; Lee, Bong-Woo ;
Journal of The Korean Association For Science Education, volume 27, issue 5, 2007, Pages 421~431
The purpose of this study was to examine the characteristics of observation and measurement inquiry process in the Korean science textbooks. For the inquiry process of observation, the higher grade textbooks contained more 'comparative observation' rather than 'simple observation'. Students should express their observation results in written words rather than verbal descriptions in the higher grade. For the inquiry process of measurement, the temperature measurement was the most frequent measurement activity. 'Measurement design' was found more frequently in the lower grade textbooks. The uses of measurement tools were not presented systematically and were presented restrictively when the relevant experiment wanted to use these tools. The higher grade textbooks include 'quantitative measurements' rather than 'qualitative measurements' and 'operation measurement' rather than 'simple measurement'. In the application of measurement results, we had difficulty in finding the activities related with the usage of unit, unit conversion, significant figure, error and uncertainty.
Teaching Orientations and Classroom Practices of Science Teachers Participating in Workshops for Constructivistic Science Teaching
Jeong, Deuk-Sil ; Lee, Sun-Kyung ; Oh, Phil-Seok ; Maeng, Seung-Ho ; Chung, Ae-Ran ; Kim, Chan-Jong ;
Journal of The Korean Association For Science Education, volume 27, issue 5, 2007, Pages 432~446
The purpose of the study is to explore the science teaching orientations of secondary science teachers, and how they influence the planning and execution of reform-based lessons. Professional development workshop for constructivist teaching consisted of three different phases; five lectures, small group discussion, and preparing lesson plans. Four teachers who participated also executed their lesson plans in their own classroom. All workshops were videotape recorded. Classroom observations and interviews were conducted and recorded. Instructional materials were also collected for each science class. All data recorded were transcribed and analyzed. Based on the data collected from multiple sources, we identified each teacher's teaching orientations, and through this lens, we also tried to understand their classroom practices. We expected teacher-participants to implement constructivist science teaching. However, the differences among teachers in the course of actual planning and implementing activities for constructivist science was wider than we expected and even some teachers were unsuccessful. Teaching orientations can act as a filter for teachers when they decide whether to accept and apply new knowledge about teaching and learning to actual lessons or not. Even if a teacher plans a guided-inquiry lesson, her/his didactic teaching orientation could be revealed in actual classroom, and lead her/his class to other direction which is quite different from her/his original intention. Although the teachers participated in the same workshops in our study, they planned and executed differently and their own teaching orientations contribute substantially to their practice. Understanding the role of science teaching orientations could be an important step in addressing issues of diverse difficulties in supporting reform efforts in science.
Analyzing the Research Works Published in the Field of Korean Science Education in Relation to Theory of 'J. Piaget', 'D. P. Bruner' or 'J. S. Ausubel'
Lee, Sun-Hee ; Jeon, Mi-Kyeong ; Park, Jong-Seok ;
Journal of The Korean Association For Science Education, volume 27, issue 5, 2007, Pages 447~455
The Research works published in the field of Korean science education in relation to the theories of 'J. Piaget', 'D. P. Bruner' or 'J. S. Ausubel' have been analyzed and their general pattern of study were determined. Specifically, based on science education related articles published in several Korean journals, the pattern of research about the three scholars' theory is identified with the classification of the specific kind of journal, year of publication, key word, field of study, field of research, and grade of school. The journals subjected to the present study include 'Journal of the Korean Physical Society', 'Journal of the Korean Chemical Society', 'Journal of the Korean Biology Society', 'Journal of the Korean Earth Science Society', 'Journal of the Korean Association for Research in Science Education', and 'Journal of the Korean Society of Elementary Science Education'. It is determined from the present study as follows: First, the total number of related articles published in said journals is 97, and 'Journal of the Korean Association for Research in Science Education' ranks first in numbers. In terms of time period, it is found that most of the researches has been carried out during the mid 90s, and is still popular today. In addition, our key word search revealed that the 'cognitive development' by Piaget is most widely studied in the articles and biology is the area that has been most frequently studied. As to the field of research, teaching study was the one that has been most widely studied. Further, many articles have focused their studies on middle school. In conclusion, it is found that the Korean research works so far made for the theory of 'J. Piaget', 'D. P. Bruner' or 'J. S. Ausubel' are rather limited to a certain area and field, etc.
An Analysis on Conceptual Sequence and Representations of Eye Vision in Korean Science Textbooks and a Suggestion of Contents Construct Considering Conceptual Sequence in the Eye Vision
Kim, Young-Min ;
Journal of The Korean Association For Science Education, volume 27, issue 5, 2007, Pages 456~464
The aims of this research are to analyze the representations and conceptual sequence of eye vision in Korean science textbooks and to suggest a contents construct about eye vision where the conceptual sequence is considered. Research method was literature review, and the literatures that were used for analysis were the 7th Korean science curriculum which was revised in 1997, and the science and physics textbooks developed based on the 7th Korean science curriculum. The research results are as follows: 1) Although the science curriculum seems to have no problem on sequence in the eye vision concepts, the science and physics textbooks based on the curriculum reveal problems on the sequence in the eye vision concepts; 2) Some Korean science textbooks explain retinal image formation according to the Alhazen's idea, except in inverse image; 3) Some Korean science textbooks explain about the reasons of near- and far-sightedness without consistency between the textbooks for 7th and 8th grade students; 4) A few Korean science textbooks give an inappropriate explanation about the principle of eye sight correction by eye glasses; 5) According to the analysis result, the concepts related to eye vision should be presented in the order of explanation about light refraction phenomena, image formation process by convex lens, structure of human eye and retinal image formation process, correction of eye sight using lens.