• Title/Summary/Keyword: Scientific question

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The Effects of QAR Strategy on 5th Graders' Scientific Attitude in Elementary Schools (QAR 전략이 초등학교 5학년 학생의 과학적 태도에 미치는 영향)

  • Oh, Seung-Min;Jeong, Jin-Woo;Kim, Hyoungbum;Jeong, Sophia (Sun-Kyung)
    • Journal of the Korean Society of Earth Science Education
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    • v.9 no.2
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    • pp.123-138
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    • 2016
  • The purpose of this study is to examine the effects of applying the Question-Answer Relationship (QAR)strategy on the attitude toward science of the elementary fifth grade students whose learning styles have beenidentified. The population of the study constitutes the total of 97 elementary fifth grade students who wereassigned into a comparison (n=48) or experimental group (n=49). To understandhow the QAR strategy potentially influencedscientific attitude, both groups were surveyedin the areas of scientific attitude before and after the experiment. TheKolb's Test was used to identifythe students' learning stylein the experimental group. According tothe learners' learning style, the results have been compared and analyzed. The results of this study are as follows:First, the findings revealed a significant difference in the experimental group students' attitude toward sciencecompared to the comparison group. Second, four learning styles were identified among the studentsin theexperimental group: a) Accommodators (46.9%), b) Convergers (24.5%), c) Divergers (20.4%), and d) Assimilator (8.2%). Following the data analysis, there was no meaningful statistical difference between four groups oflearning styles with respect to their scientific attitude.Applyingthe QAR strategy in a science class seemed toimprove the accommodators, convergers, and divergers' scientific attitude positively.

The Core Values that Support Health, Safety, and Well-being at Work

  • Zwetsloot, Gerard I.J.M.;van Scheppingen, Arjella R.;Bos, Evelien H.;Dijkman, Anja;Starren, Annick
    • Safety and Health at Work
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    • v.4 no.4
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    • pp.187-196
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    • 2013
  • Background: Health, safety, and well-being (HSW) at work represent important values in themselves. It seems, however, that other values can contribute to HSW. This is to some extent reflected in the scientific literature in the attention paid to values like trust or justice. However, an overview of what values are important for HSW was not available. Our central research question was: what organizational values are supportive of health, safety, and well-being at work? Methods: The literature was explored via the snowball approach to identify values and value-laden factors that support HSW. Twenty-nine factors were identified as relevant, including synonyms. In the next step, these were clustered around seven core values. Finally, these core values were structured into three main clusters. Results: The first value cluster is characterized by a positive attitude toward people and their "being"; it comprises the core values of interconnectedness, participation, and trust. The second value cluster is relevant for the organizational and individual "doing", for actions planned or undertaken, and comprises justice and responsibility. The third value cluster is relevant for "becoming" and is characterized by the alignment of personal and organizational development; it comprises the values of growth and resilience. Conclusion: The three clusters of core values identified can be regarded as "basic value assumptions" that underlie both organizational culture and prevention culture. The core values identified form a natural and perhaps necessary aspect of a prevention culture, complementary to the focus on rational and informed behavior when dealing with HSW risks.

Maritime Navigation System: Technological Solutions to Ensure The Safety Of Maritime Navigation

  • Burmaka, Igor;Vorokhobin, Igor;Chimshir, Valentin;Burmaka, Oleksiy;Smyrnova, Iryna;Danylenko, Oleksandr
    • International Journal of Computer Science & Network Security
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    • v.21 no.9
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    • pp.141-150
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    • 2021
  • The article assesses the level of navigation safety, in theoretical terms, defines the complexity of managing navigational risks in practice. The issues of assessing the navigational safety have been studied due to the importance and relevance of the issue in question, however, due to the great complexity of the problem under consideration, the article considers and indicates the directions for the development of the solution of the given direction, where, first of all, it became necessary to analyze the issue of assessing the levels of navigation risks when navigating vessels of various types in difficult navigation conditions.

Bibliometric Analysis of Collaboration Network and the Role of Research Station in Antarctic Science

  • Kim, Hyunuk;Jung, Woo-Sung
    • Industrial Engineering and Management Systems
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    • v.15 no.1
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    • pp.92-98
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    • 2016
  • Due to the large scale of Antarctic science, scientific collaboration is required for conducting scientific research. In this study, we attempted to investigate collaboration network and the role of research station in Antarctic science based on bibliometric data from 1995 to 2014. We confirmed that geographical proximity tends to be important for scientific collaboration by employing community detection in the network. This result raises the question about what the role of research station in Antarctica is. We tried to reveal its role by focusing on five countries, Belgium, China, Czech Republic, India, and Korea that constructed new research stations during the last decade. Relative growth rate, a value to measure the growth of publications, didn't differ much around the construction period compared to those in other periods for these countries except Belgium. However, we found geographical keywords emerged around the construction for all five countries. These keywords were utilized to observe national research activities in Antarctica. They show where countries started to be concerned about after the construction.

5-year-old Students' Attitude Toward Science in Relation to Their Gender and Teachers' Background (유아의 성과 교사 변인에 따른 유아의 과학에 대한 태도)

  • Cho, Boo-Kyung;Go, Young-Mi
    • Journal of The Korean Association For Science Education
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    • v.24 no.5
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    • pp.833-842
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    • 2004
  • The purpose of this study was to explore kindergarten students' attitude toward science by their gender and teachers' background. 90 kindergarten teachers and 180 5-year-old students were intentionally sampled in a suburban area. The research instruments used in this study were the interview questions of student attitude to science and the teacher's background questionnaire. The interview questions constructed by two researchers, based on "The Students' Attitude to Science Scale"(Pell & Farvis, 2001). It was composed of 13 questions; 7 questions on preference for science and 6 on perception to science. The teacher's background questionnaire was consisted of I question on educational background, I on career, and 51 on scientific literacy("Test of Basic Scientific Literacy")(Laugksch & Spargo, 1996). The results revealed that the students' attitude to science was positive and was different by their teachers' educational background, not by their gender and their teacher's career and scientific literacy. However, the students showed different preference for science by their teachers' scientific literacy. These results imply that early childhood teachers should have enough chances to be more educated and to improve their scientific literacy.

An Analysis of Types and Sources of Background Knowledges of Elementary Preservice Teachers' Questions about Astronomy Contents in Elementary Science Text Books (초등 과학교과서 천문 내용에 대한 예비교사들의 질문의 배경지식 유형과 출처 분석)

  • Lee, Myeong-Je
    • Journal of Korean Elementary Science Education
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    • v.35 no.2
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    • pp.194-204
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    • 2016
  • The purpose of this study is to find out the relationship between types and sources of background knowledges of elementary preteachers' questions about astronomy contents in the elementary science text books. Data were extracted from the preteachers' classes established in a university of education. The results are as follows. First, right background knowledges of questions were found in about 58% questions, wrong background knowledges 15%, and no background knowledges 26%. Second, it was found that 'school' as a source of background knowledges was found in 29% questions, 'friend' 21%, 'internet' 14%, 'book reading' 12%, 'others' 9%, 'TV' 7%, 'institute' 4%. In case of the type that right background knowledges have casual relation or correlation with question contents, 'book reading' and 'TV' sources rate increased, but 'internet' and 'others' decreased when compared to total questions. In the type which background knowledges are right and did not have casual relation or correlation with question contents, 'internet' source rate increased and 'friend' decreased. In case of the type that wrong background knowledges do not have casual relation or correlation with question contents, 'friend' and 'TV' sources rate increased, but 'school' and 'book reading' decreased. The type which background knowledges are right and did not have casual relation or correlation with question contents, 'internet' source rate increased and 'friend' decreased. In case of the type of no background knowledges, 'TV' and 'institute' source rate increased, but 'internet' and 'book reading' decreased. Third, the questions in 'Earth and Moon' unit have little background knowledges. The questions in 'solar system and stars' have background knowledges with no relation to the questions. Especially, in the unit 'changes of seasons', right background knowledges were found in more than half questions, but the contents of questions and background knowledges were not connected scientifically.

Elementary School Teachers' Concept of Combustion - Focus on Change of Gases - (연소에 대한 초등교사의 개념 - 기체변화를 중심으로 -)

  • Shin, Ae-Kyung;Moon, Hyun-Sook;Kang, Min-Seog
    • Journal of The Korean Association For Science Education
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    • v.31 no.6
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    • pp.942-957
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    • 2011
  • The purpose of this research was to examine the concept of elementary school teachers of combustion. The participants were selected from the elementary school teachers who had various career experiences, 6th grade science teaching experiences, and academic backgrounds on science. For the purpose of this study, 12 elementary school teachers took the concept-test formed five questions on combustion and were interviewed. The concept-test was composed with 'The definition of combustion', 'The reason that the candle was blown out when glass was closed.', 'The existence of oxygen and carbon dioxide of before and after combustion in glass', 'Combustion of iron', 'Combustion products'. And the collected data by semi-structured interviews based on responses to the concept-test. During the analysis of the data, additional interviews by phone, e-mail and Internet messenger were conducted if necessary. The answers to each question were classified into three levels: (Scientific-concept(S), Partial-concept(P), Misconcept(M)). The research results showed that all teachers had misconceptions or partial-concept of more than 50 percent of each question. Teachers who had the 6th grade science teaching experience acquired scientific concepts of the combustion more than teachers who did not have the 6th grade science teaching experience. We should develop visualization materials about the change of gases during combustion and use these materials for implementation of the scientific concept.

Analysis of Relationships of Scientific Communication Skills, Science Process Skills, Logical Thinking Skills, and Academic Achievement Level of Elementary School Students (초등학생의 과학적 의사소통능력과 과학 탐구능력, 논리적 사고력, 학업 성취도 수준과의 관계 분석)

  • Jeon, Seongsoo;Park, Jong-Ho
    • Journal of The Korean Association For Science Education
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    • v.34 no.7
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    • pp.647-655
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    • 2014
  • The purpose of this study is to acquire teaching insights for improving scientific literacy by analyzing the effects of scientific communication skills, science process skills, and logical thinking skills of elementary school students on academic achievement level. The participants are 64, sixth grade elementary school students. Survey materials include the results of Scientific Communication Skill Test (SCST), Test of Science Process Skills (TSPS), Group Assessment of Logical Thinking (GALT), multiple choice test & short answer test, descriptive answer test on science, and academic achievement level test on all subjects. Based on these data, the study analyzed the relationships of science process skills, logical thinking skills, and scientific communication skills, and each category's effect on academic achievement level. Furthermore, under the assumption that scientific communication skills are affected by science process skills and logical thinking skills and directly influence the academic level, the research discovered three types of correlations as a structural model. The results show that there are considerable correlations in scientific communication skills, science process skills, and logical thinking skills. Also, these three abilities have meaningful correlations with learner's writing and descriptive question level on science curriculum and overall academic achievement level; the level of correlation differ a bit by subcategory factors. In conclusion, setting the model, science process skills and logical thinking skills influence scientific communication skill, and the skill directly influences the learner's academic level. Further analysis of the results show that scientific communication skill influences the academic achievement level of all subjects the most.

Needham Revisited : Chinese Medicine and Modernity (니덤을 다시 생각한다 : 중국의학과 근대성)

  • Song, Seok Mo;Lee, Kwang Gye;Lee, Sang Ryong
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.27 no.5
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    • pp.520-529
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    • 2013
  • Needham Problem(NP) is the influential question that English historian of Chinese science Joseph Needham raised, "Why modern science had not developed in the Chinese civilisation but only in that of Europe?" Our objectives in this paper are as follows: First, we will revisit NP in the broad context of the emergence of modernity rather than treating it just as an internal problem of Chinese science. After that, the problem of modernity in Chinese medicine will be discussed from the viewpoint of NP. After NP's intellectual backgrounds are summarized, its value and implications are examined, and then Needham's own answers are presented. Afterwards, we present supplementary hypotheses, adapted from Weber, as our solution to NP in Chinese science and medicine. Needham thought that the European scientific revolution would not have been possible without the rise of modern capitalism. He also believed that Chinese bureaucratism facilitated early development of Chinese science and in turn, inhibited later radical change by interrupting the rise of capitalism. According to our hypotheses, scientific changes are related to social changes, especially to the legitimation crises, which lead to the alternations of mode of justification in sciences. The Chinese society did not go through the legitimation crises as the European society did, and therefore it failed to produce a radically different kind of justification from the traditional one. This is the reason why there was no revolution in science and medicine in China.

Elementary Preservice Teachers' Conceptions about 'Plastics' - Focusing on Non-Polar Property - ('플라스틱'에 대한 초등 예비교사들의 인식 조사 - 플라스틱의 비극성 성질 중심으로 -)

  • Kim, Han-Je;Jang, Myoung-Duk;Joung, Yong Jae
    • Journal of Korean Elementary Science Education
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    • v.33 no.2
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    • pp.401-414
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    • 2014
  • The purpose of this study is to investigate the elementary preservice teachers' conceptions about 'plastics' focusing on non-polar property from a National University of Education. For the study, the views about plastics, relative shapes of a water droplet on plastic or glass material, and relative shapes of water surface in the plastic or glass measuring cylinder were surveyed from the preservice teachers. And the responses were analyzed based on the patterns. The results from the study are as follows: First, most preservice teachers were well aware of the plastic products which are used in daily life. Second, the responses concerning the reason why plastics can be used commonly were divided into 2 categories with 14 sub-level groups. However relatively few preservice teachers mentioned regarding 'chemical stability' and 'conductivity', which are associated with the plastics' non-polar property. Third, it was found that 50 participants (30.1%) had 'Scientific conception (Sc)', 38 (22.9%) had 'Partial-scientific conception (Ps)', 66 (39.8%) had 'Misconception (Mc)', and 12 (7.2%) had 'No conception (Nc)' on the subject of the relative shapes of a water droplet. Fourth, the distribution patterns and the ratio of the preservice teachers' conception on the survey question 3 concerning the relative shapes of water surface were quite similar to those of the survey question 2. So it was concluded that overall understanding level of the preservice teachers was pretty low on the subjects of the relative polarities of the plastic, glass, and water as well as their interactions. Fifth, the distribution percentile of 'Sc'/'Ps'/'Mc'/'Nc' was not related with the gender but highly correlated with preservice teachers' academic field and their science subjects taken in high school. Based on the results from the study, some educational guidelines were suggested.