• Bulletin of the Korean Space Science Society
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• 1994.09a
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• pp.26-26
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• 1994

No Abstract. See Full-text

• Journal of The Korean Association For Science Education
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• v.41 no.2
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• pp.145-154
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• 2021

This study aims to investigate teachers' perceptions of the composition of high school science elective courses ahead of the 2022 curriculum revision, and to derive implications for the organization of the 2022 revised science curriculum in preparation for the full implementation of the high school credit system. To this end, a survey was conducted by randomly sampling high schools across the country. A total of 192 science teachers responded to the questionnaire. In addition, 12 high school science teachers were selected as a focus group, and in-depth interviews were conducted to investigate opinions on the restructuring of elective courses in science. Main research results include 129 (67.2%) science teachers in the survey answered that the current 2015 curriculum's science and elective courses system should be maintained. In the next curriculum, when reconstructing science elective subjects, it is necessary to provide an opportunity to experience the entire contents of each science field through Science I·II system as before, and to ensure student choice in preparation for the credit system. In addition, the opinion that general elective subjects should be organized to include all the contents of science I and II subjects was the highest. Through in-depth interviews, science teachers emphasized that the current science I subject system allows access to the content areas of science as much as possible as the number of subjects is small, and that subjects, such as physics, where the hierarchy of concepts is important, should deal with important content within one subject rather than divided by area. On the other hand, in the current I subject system, there is no subject for liberal arts students to choose from, so teachers suggested that science electives should be organized by subdividing each content area. Based on the research results, the necessity of organizing high school science elective courses in consideration of the purpose of the high school credit system, ways to organize science-convergence elective courses as subjects for all students regardless of career aptitude, ways to organize science-career elective courses, and ways to organize science elective courses in connection with the college admission system were proposed.

• Journal of Species Research
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• v.12 no.spc
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• pp.1-69
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• 2023

This study aims to establish a comprehensive, synthetic inventory system for the fauna and flora of Dokdo Island, Republic of Korea, which has been conducted by a specialized research group consisting of more than 50 experts. The research was conducted over five years(2015-2019) and supported by the National Institute of Biological Resources, Ministry of Environment, Republic of Korea. All possible publications on the fauna and flora of Dokdo Island over the last 68 years from 1952 to 2020 were reviewed. As a result, 1,302 species were found on Dokdo Island during the study period. An updated list of 1,963 species was created. This is expected to be of great help for the conservation and national publicity of important indigenous biological resources of Dokdo Island.

• Journal of Korean Elementary Science Education
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• v.39 no.2
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• pp.155-167
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• 2020

This study analyzed reference data for the physics section in science guidebooks for the third-sixth grade in elementary schools, according to the 2015 revised curriculum. It analyzed the reference data by categorizing them in terms of subjects, objectives and presentation forms and the visual data used in the reference data by categorizing their types. The findings show that the ratio of the science knowledge type was highest (53.8%) among the subjects of reference data in guidebooks for the science section, followed by the application to real life, and then, supplementary inquiry experiments and activities. The ratios of other types such as advanced science, environment, scientists and science history were, however, less than 1%, so they need to be improved. The ratio of knowledge provision was highest (40.5%) among the objectives of reference data but the ratios of conceptual supplementation and deepening were similar in ratio. Meanwhile, While the expository type (88.4%) accounted for most of the present forms of reference data, and photographs and illustrations (93.6%) also accounted for most of visual data suggested with reference data. Thus more various types of presentation forms and the extension of visual data seemed to be needed. This study is expected to provide some suggestions for the meaningful use of reference data in guidebooks for teachers and for the development of science guidebooks for teachers in elementary schools.

• Journal of The Korean Association For Science Education
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• v.24 no.5
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• pp.916-929
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• 2004

The purpose of this study is to investigate issues in science curriculum reform studies. For the study the papers in ERIC data base were selected on the key words, 'science education', 'curriculum' and 'reform'. The number of papers are the most on the late 90s which has been increasing since the late 70s. During the last decade the 132 papers were identified on 30 May 2003 and the 18 journals which have more than two articles in each journal have 66% of the total papers. The identified reform issues were 'reform themes', 'program introduction', 'critics and vision of reform'. Reform themes are 'teachers', 'scientific literacy', 'integration and teaching', 'reform processes'. The contents on 'teachers' are related to almost teachers' knowledges and beliefs on the reform, those on 'scientific literacy' are related to the loose definitions of scientific literacy, those on 'integration and teaching' are related to difficulties in teaching with integration, those on 'reform processes' are related to power problems between persons or groups who participated in reform processes, and those on 'critics and visions' are related to the embodiment of science education standards and the problems on the nature of science. This study remarks that these issues should be considered sincerely for the reform of science curriculum in the future.

• Journal of Korean Elementary Science Education
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• v.27 no.4
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• pp.399-419
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• 2008

The purpose of this study was to develop performance assessment materials of scientific inquiry skills on 62 scientific activities in elementary science textbook for third and fourth grades. For this study, a total of 318 elementary teachers were sampled and surveys were carried out to examine the status of performance assessment of scientific inquiry skills in school. The classification system of assessment methods by Hart(1994) was also analyzed to create assessment strategy of scientific inquiry skills for elementary school students. Based on the quantitative data analysis, literature study and existing performance assessment materials analysis, performance assessment materials were developed and applied to science classes for third and fourth grades. Teachers and students were interviewed after the classes for asking about merits and improvements and the performance assessment materials were revised.

• International Journal of Control, Automation, and Systems
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• v.6 no.1
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• pp.15-23
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• 2008

This paper considers the problem of delay-dependent guaranteed cost controller design for uncertain neutral systems with distributed delays. The system under consideration is subject to norm-bounded time-varying parametric uncertainty appearing in all the matrices of the state-space model. By constructing appropriate Lyapunov functionals and using matrix inequality techniques, a state feedback controller is designed such that the resulting closed-loop system is not only robustly stable but also guarantees an adequate level of performance for all admissible uncertainties. Furthermore, a convex optimization problem is introduced to minimize a specified cost bound. By matrix transformation techniques, the corresponding optimal guaranteed controller can be obtained by solving a linear matrix inequality. Finally, a simulation example is presented to demonstrate the effectiveness of the proposed approach.

• Journal of Fisheries and Marine Sciences Education
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• v.24 no.4
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• pp.528-542
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• 2012

In this study, we designed and applied the learning program of various algorithms about computer science, which were based on computational thinking, to prospective elementary school teachers who were non-majors of this field. While they were learning, they could understand two fundamental functions of computational thinking: abstraction and automation. This learning program made them change their perceptions about computer science positively. They had been interested in learning algorithms and computer science itself, and they felt confident about teaching it.

• Journal of The Korean Association For Science Education
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• v.33 no.1
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• pp.46-62
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• 2013

In this study, nations with high academic achievement but disparate affective achievement in science according to the results of the TIMSS 2007 were selected and students' responses in the main survey for affective properties from those nations were analyzed. In addition, Korean science teachers' perception of affective achievement and the properties of teaching and learning science was explored by an online survey. According to the results of the analysis of students' responses in the main survey, the percentage of those with high levels of confidence in, pleasure in, and value perception of science was large for Hong Kong, Singapore, and England but small for Korea, Taiwan, and Japan. When the properties of teaching and learning in actual science classes were observed in Korea, actual classes focused little on experimentation, research activities, and the context of everyday life. According to the results of surveys conducted on science teachers, students' low confidence in science was due to difficult and uninteresting curricula and the absolute lack of time to study science and their low interest in the subject was due to difficult curricula and the view that science was unrelated to their future academic or professional careers. In addition, according to the teachers, students' low value perception of science curricula was due to the fact that there was no need to excel in science for academic or professional careers and the idea that the subject was of no help to daily life.

• Korean Journal of Childcare and Education
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• v.10 no.1
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• pp.43-58
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• 2014

The purpose of this study was to investigate the effect on child care teachers' self-efficacy in teaching science. Subjects were 297 childhood teachers who were working at a day care center. The data were collected by using three questionnaires(Science Teaching Efficacy Belief Instruments, Inventory of Science Attitude, and Attitude Test for Child Care Teachers). The data were analyzed by Pearson's correlation and step-wise Regression. The results of this study are as follows; First, there were positive correlations between aptitude for child care teacher and self-efficacy in teaching science. Second, there were positive correlations between science attitude and self-efficacy in teaching science of child care teachers. Third, the significant predictors of self-efficacy in teaching science were interest in science, social value of science, interpersonal relationship management abilities, and positive emotions. The results of this study can be used to develop effective teacher training programs for early childhood science education.