• Journal of The Korean Association For Science Education
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• v.36 no.2
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• pp.303-315
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• 2016

Socioscientific issues (SSI), by their nature, are conceptually embedded in technology. Previous research reported that nature of technology (NOT), unlike nature of science, was quite explicitly manifested in SSI decision-making, and NOT could be a promising construct for promoting SSI reasoning. In this study, authors introduced an integrated conceptual framework for NOT, which consisted of four dimensions (i.e., artifacts, knowledge, practice and system) as diverse modes of technology. We adapted the framework to investigate students' conceptualizations of NOT in the context of various SSIs. Data was collected from 45 college students enrolled in a liberal arts course on science and technology. The students participated in a team project, where they prepared and led discussions for SSI topics in class. Seven topics concerning SSIs were selected by students themselves. The preparation and class discussion of each student group were audio-recorded, and final reports were also analyzed. As a result, NOT sub-components in the dimensions of artifacts and system were explicitly represented in most contexts of SSI with various ranges of understanding. Other sub-components under the dimensions of knowledge and practice were rarely or implicitly shown in the discussion. The depth of students' understanding on NOT varied. Implications for science education were discussed.

• Journal of The Korean Association For Science Education
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• v.24 no.3
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• pp.621-637
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• 2004

In science education, the research on students' conceptions has been started in early 1970. From the early 1980, the research on students' conceptions stimulated the research on conceptual change. Recently, mental model has been a theoretical background in concrete arguments on "how students' conceptions are constructed or created?" Mental model has been studied early in cognitive psychology, and several researchers have studied it partially in science education area. In this study, we compared different theories that explained students' conceptions in, mainly, physics. Further we discussed the possibility of mental model as a theory that could integrate different explanations about students' conceptions from different theory.

• Journal of the Korean earth science society
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• v.44 no.3
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• pp.210-221
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• 2023

The purpose of this study is to evaluate the content knowledge and problem solving process used by pre-service earth science teachers while discriminating faults on geological maps. For this, we collected and evaluated data on fixation duration and gaze plot, while pre-service earth science teachers (N=12) solved the problem on faults interpretation using an eye tracker (Tobii Pro Glass 2 model). The results were as follows. First, most of the pre-service earth science teachers know the concepts of the normal and reverse fault but they do not know the procedural knowledge essential for fault interpretation on geological maps. Second, the pre-service earth science teachers did not draw a geological cross-sectional map to interpret the fault on the geological map and interpreted the fault based on two-dimensional information collected from the geological map rather than three-dimensional information. Therefore, it is essential to improve the teaching and learning environment so that pre-service earth science teachers who will become earth science teachers in the future can learn procedural knowledge essential to comprehend natural phenomena including understanding natural phenomena. The results of this study can substantially help organize a new earth science curriculum or develop materials on teachers' education in the future.

• Journal of The Korean Association For Science Education
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• v.35 no.4
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• pp.649-663
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• 2015

This study investigated the current state of writing in research papers of science education with focus on the translationese and basic Korean grammar, and found a way of improving the Korean language. The science education research have characteristics of both social science and natural science, and of having more quantitative than qualitative research, which could influence the writing of the research paper. The translationese means the conventional expression originated from foreign language other than Korean. The basic Korean grammar includes 'agreement,' 'spelling, word spacing, punctuation mark,' 'causative suffix,' 'use of English or loanword,' and the translationese is divided in 'English,' 'Japanese,' and 'English and Japanese.' The sentences in nine research papers in the 'Journal of the Korean Association for Science Education' were analyzed, and the problematic sentences were discussed and provided with alternatives. The cases with high frequency include '-jeok,' 'use of English,' 'expression of the plural,' 'passive voice of the verb with -hada,' '-go inneun,' '-eul tonghayeo,' '-e daehayeo,' 'gajida,' 'genitive case marker -eui,' 'passive voice with subject of thing,' and 'causative suffix, -sikida.' Based on the results, the characteristics of writing of science education research papers were described as 'writing of quantitative research,' 'objective writing of academic research,' and 'writing of research of foreign origin.' In order to improve the writing of research paper of science education, the science education researcher should pay attention to basic Korean grammar and the translationese, and be familiar with the concrete examples of problematic cases. The results of this study could be used in the education of writing and grammar of Korean language.

• Life and Agrochemicals
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• v.29 no.10
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• pp.14-17
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• 2008

일반에게 공정한 입장에서 소비자와 커뮤니케이션을 실행하는 수단으로서 "일본농약학회, 지방자치단체, 내각부 식품안전위원회나 농림수산성, 후생노동성 등의 공적기관, 농약공업회나 전국농약협동조합 등 임의단체, 전국농업협동조합이나 전국 판매상 등의 유통업자 등이 실시하는 농약의 안전 사용자 안전 등에 관한 세미나 강습회, 소비자의 간담회", "학회나 농약연구자, 과학리더에 의한 계몽서의 출판, 학회나 업자 단체에 의한 Q&A집의 학회지 게재나 배포". "각종 학회나 공적기관의 홈페이지 계몽 해설문제의 게재", "농약제조 메이커나 임의단체에 의한 인터넷을 통한 메일 잡지 배송", "신문(전국지)를 매개로 한 홍보활동" 등을 들 수 있다. 최근에는 대학에 있어서도 일반사회인(소비자 포함)을 대상으로 한 농약이나 각종 화학물질의 안전성에 관한 공개강좌가 개설되어 있다. 한편 공정한 입장서 농약에 대해서 올바르게 전달한다는 개념에서 출발하지만, 결국엔 상업적 측면이 강한 "재미있고 우습게, 농약이 가지는 잠재적 위험성을 일부러 강조하고, 때로는 과학적 사실과 다른 내용을 의도적 또는 비의도적으로 전달하여 시청자나 독자의 관심을 끌어 시청률이나 발행부수를 신장시키는 것을 목적으로 하는 각종 매스컴으로부터의 막대한 양의 정보발신(모든 매스컴이 해당하는 것은 아님)이 있다. 더욱이 인터넷 사이트에는 종교적 측면이 강한 단체를 포함, 농약의 위험성을 강조하는 일이 있으며 온갖 정보가 넘쳐나고 있다. 물론 공적기관을 포함, 농약의 유용성과 잠재적 위험성에 대하여 공정하고 객관적 입장에서 인터넷을 소개한 정보 발신도 행해지고 있다. "농약은 나쁘고 위험하다"라는 정보로는 센세이셔날 한 상품가치(매스컴측의 보도 메리트)가 있지만 "농약은 안전하고 문제없다"로는 상품가치가 없다고 하는 상업 저널리즘을 드러낸다. "양적으로 압도적인 매스컴 보도"를 뛰어넘어 소비자에게 올바른 정보를 전달, 이해시키는 것은 가능하지 않을까. 다음으로 농약에 관한 리스크커뮤니케이션 수법에 대한 유의점과 과제를 기술한다.

• Journal of the Korea Convergence Society
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• v.6 no.1
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• pp.77-83
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• 2015

Though the SNA (social network analysis ; SNA) has been used for various fields, esp. social science field, ig. politics, journalism, and science of public administration as well as natural science field, there are few studies about the introduction of analysis tools. In order to perform the SNA, collecting data which are fit for the purpose, statistical values deduction and visualized results made by analysis tool are necessary, but the studies, which explain them systematically, are not sufficient yet. So, in this study, we are intended to introduce the analytic process, from the data input to the interpretation, with proven data. using the R program, which is free, in order to help researchers who have any plan to study using the SNA. The proven data in this study are quoted ones in the domestic scientific journals of food, which are those supplied citation index DB of Korean scientific journals. As a study methodology, the SNA is a new paradigm to substitute existing research methods as well as a complement of statistical analysis. Therefore, this study would contribute to vitalization of the SNA.

• Journal of The Korean Association For Science Education
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• v.19 no.2
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• pp.229-238
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• 1999

This study investigated the influences of Vee diagram and regulative metacognitive learning strategies upon 6th-graders' achievement, difficulty toward science lesson, self-efficacy, and learning approach. The Vee diagram and regulative metacognitive learning strategies were modified in a pilot study. Before instruction, an achievement test was administered, and its score was used as a blocking variable. A previous science grade was used as a covariate for post-achievement. Tests of difficulty toward science lesson, self-efficacy, and learning approach were also administered, and the test scores were used as covariates. After instruction, a researcher-made achievement test and post-tests of the above variables were administrated. Two-way ANCOVA results revealed that although there were no significant differences in the achievement test scores, the application subtest scores of the two treatment groups were significantly higher than those of the control group. There were no significant differences in the difficulty toward science lesson and learning approach, but self-efficacy scores for the students with Vee diagram and regulative metacognitive learning strategies were significantly higher than those of the other groups. The perceptions of the students using Vee diagram were also analyzed.

• Journal of the Korean Data and Information Science Society
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• v.25 no.2
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• pp.327-336
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• 2014

Recurrent event data occurs when a subject experiences same type of event repeatedly and is found in various areas such as the social sciences, Economics, medicine and public health. To analyze recurrent event data either a total time or a gap time is adopted according to research interest. In this paper, we analyze recurrent event data with incomplete observation gap using a gap time scale. That is, some subjects leave temporarily from a study and return after a while. But it is not available when the observation gaps terminate. We adopt an interval censoring mechanism for estimating the termination time. Furthermore, to model the association among gap times of a subject, a frailty effect is incorporated into a model. Programs included in Survival package of R program are implemented to estimate the covariate effect as well as the variance of frailty effect. YTOP (Young Traffic Offenders Program) data is analyzed with both proportional hazard model and a weibull regression model.

• Journal of Korean Elementary Science Education
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• v.41 no.2
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• pp.199-216
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• 2022

This study explored the possibility of introducing modern physics into the elementary school science curriculum. The study discussed the need of introducing modern physics to elementary school students and examined the results of certain projects and studies on teaching modern physics to elementary school students. Furthermore, this study proposes several teaching and learning techniques to introduce modern physics into the elementary school science curriculum. Modern physics can be linked to various everyday situations experienced by students and can increase their interest and curiosity in science. Additionally, introducing modern physics to elementary school students who are yet to establish a background on the classical view of nature can help them build a new perspective. Recently, several global projects to introduce modern physics at the elementary level have also reported positive results regarding the increase in student understanding and interest in modern physics. The study briefly proposed specific topics and teaching and learning techniques that could be suitable for the elementary school level. These proposals are expected to advance discussions on the possibility of introducing modern physics. However, appropriate follow-up studies are warranted to confirm the possibility and effectiveness of this initiative.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.20 no.3
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• pp.365-370
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• 2007

Many engineering problems often require the large amount of computing resources for iterative simulations of problems treating many parameters and input files. In order to overcome the situation, this paper proposes an e-Science based computational system. The system exploits the Grid computing technology to establish an integrated web service environment which supports distributed high throughput computational simulations and remote executions. The proposed system provides an easy-to-use parametric study service where a computational service includes real time monitoring. To verify usability of the proposed system, two kinds of applications were introduced. The first application is an Aerospace Integrated Research System (e-AIRS). The e-AIRS adapts the proposed computational system to solve CFD problems. The second one is design and optimization of protein 3-dimensional structures in structural biology.