• 제목/요약/키워드: science practices

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The Analysis of Computational Thinking Practices in STEAM Program and its Implication for Creative Problem Solvers in the 21st Century

  • Park, Young-Shin;Green, James
    • 한국지구과학회지
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    • 제41권4호
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    • pp.415-434
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    • 2020
  • The purpose of this study was to explore if, what kinds of, how much computational thinking (CT after this) practices could be included in STEAM programs, and what kinds of CT practices could be improved to make STEAM revitalized. The CT analyzing tool with operational definitions and its examples in science education was modified and employed for 5 science-focused and 5 engineering-focused STEAM programs. There was no discerning pattern of CT practices uses between science and engineering STEAM programs but CT practices were displayed depending on their topics. The patterns of CT practices uses from each STEAM program could be used to describe what CT practices were more explored, weakly exposed, or missing. On the basis of these prescription of CT practices from each STEAM program, the researchers could develop the weakly exposed or missing CT practices to be improved for the rich experience in CT practices during STEAM programs.

2009 개정 교육과정에 따른 화학II교과서에 포함된 탐구 활동 분석: 8가지 과학 실천을 중심으로 (Analysis of Inquiry Activities in High School Chemistry II Textbooks based on the 2009 Revised Science Curriculum: Focus on 8 Science Practices)

  • 전영;최애란
    • 대한화학회지
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    • 제60권1호
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    • pp.59-68
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    • 2016
  • 최근 과학교육에서 강조되고 있는 과학적 소양의 함양은 과학 지식이 형성되는 일련의 탐구 과정을 경험하고 이해함으로써 향상될 수 있다. 이러한 관점에서 미국연구회(NRC)의 차세대과학기준(NGSS)은 학생들의 과학 탐구 과정 경험과 이해를 돕기 위하여 8가지 과학 실천(8 Practices of Science)을 제안하였고, 8가지 과학 실천 각각에 대하여 학년 군별 세부성취 목표를 제시하고 있다. 본 연구에서는 2009 개정 교육과정에 따른 고등학교 화학II교과서 4종에 포함된 탐구 활동을 8가지 과학 실천과 9-12학년군 세부 성취 목표를 기준으로 분석하였다. 4종의 화학II교과서에 포함된 탐구 활동은 총 173개 이고 분석된 과학 실천은 총 678개 이었다. 4종 화학II교과서의 탐구 활동에 포함된 과학 실천은 ‘자료 분석하고 해석하기’가 가장 많았고, ‘증거에 입각하여 논의하기’, ‘정보를 얻고 평가하고 의사소통하기’등은 상대적으로 그 기회가 부족하였으며, ‘질문하고 문제 규정하기’와 ‘모형 개발하고 사용하기’는 거의 포함되어 있지 않았다.

초등 교사의 과학학습에 대한 신념과 수업 내용, 방법, 환경 측면에서의 교수 실제에 관한 사례 연구 (A case study of elementary teachers' beliefs of science learning and their teaching practices in the aspects of teaching contents, methods, and learning environments)

  • 안영돈;임희준
    • 과학교육연구지
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    • 제38권3호
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    • pp.555-568
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    • 2014
  • 본 연구는 초등학교 과학 수업에서 교사의 과학학습에 대한 신념이 교수 실제와 어떤 관계가 있는지를 알아보고자 하였다. 이를 위하여 초등학교 교사 4명을 대상으로 리커트식 설문 조사와 면담을 통하여 교사의 과학학습에 대한 신념을 알아보았다. 그리고 각 교사당 2차시의 수업에 대하여 실제 수업 관찰 및 수업 후 면담을 통하여 수업 분석을 실시하였다. 분석 결과, 과학학습에 대한 신념에서 전통적 관점을 보인 A교사와 B교사는 교수 실제에서도 교사 중심의 설명식 수업을 진행하였다. 반면에 상대적으로 구성주의적인 신념을 보인 C교사와 D교사는 교수 실제에서 교과서 내용을 재구성하고 다양한 교수 방법과 전략을 활용하는 수업을 진행하였다. 초등 교사의 과학학습에 대한 신념에는 교사간에 차이가 있었으며, 이러한 신념의 차이는 대체적으로 과학 수업의 실제와도 관련이 깊은 것으로 나타났다. 이를 토대로 초등 과학수업에서 교사의 과학학습에 대한 신념의 중요성에 대하여 시사점을 논의하였다.

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Effect of Challenges with Class Size, Classroom Management and Availability of Instructional Resources on Science Teachers' Teaching Practices in Secondary Schools

  • Moluayonge, Gracemary Eloheneke;Park, Innwoo
    • 과학교육연구지
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    • 제41권1호
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    • pp.135-151
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    • 2017
  • This study set out to investigate the challenges to science teacher's teaching practices in the Anglophone sub-system of education in Cameroon secondary schools. A sample of 331 of these teachers was selected using the purposive sampling method. Data was collected by use of a questionnaire and was subjected to inferential analysis. The major findings from the multiple regression were challenges associated with the size and management of a science class have an effect on the teaching practices of a science teacher. However, challenges with availability of instructional resources did not have an effect on science teaching practices. Recommendations to solve the identified drawbacks include the provision of more classrooms to accommodate the ever growing population of students and the organization of many seminars through which teachers could be educated on how to handle classroom problems and improvise when necessary.

영양교사 및 영양사의 지속가능활동의 영향요인 - 확장된 계획행동이론 적용 - (Factors Influencing the Sustainable Practices in School Food Service Operations - An Application of the Extended Theory of the Planned Behavior Model -)

  • 정민재
    • 한국식품영양학회지
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    • 제34권2호
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    • pp.242-253
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    • 2021
  • The purpose of this study was to investigate the sustainable practices of nutrition science teachers and dietitians working in school food service operations, and identify the social and psychological factors which affect the overall efficacy of the system. The research model was constructed based on the Extended Theory of Planned Behavior (ETPB) in order to analyze how individual motivation affects the sustainable practices of nutrition science teachers and dietitians. The data were collected through e-mail and postal mail from nutrition science teachers and dietitians all across Korea, and self-administered surveys were conducted. SPSS and AMOS programs were used for statistical analysis. First, the sustainable practices of nutrition science teachers and dietitians were analyzed in 6 different categories. Second, the significant pathways were 6 out of 9 in the ETPB model. Sustainable food service practices in school can contribute to the formation of more a sustainable culture, such as through the encouragement of more healthy eating habits, and higher level of environmental awareness and community awareness. The factors influencing these practices can be applied to the design of improvement programs aimed at increasing sustainable practices.

ICT-based Cooperative Model for Transparent and Sustainable Scholarly Publishing Ecosystem

  • Jung, Youngim;Seo, Tae-Sul
    • Journal of Contemporary Eastern Asia
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    • 제21권1호
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    • pp.53-71
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    • 2022
  • The overall purposes of this study are to identify actions taken to counter predatory publishing practices as well as to propose an ICT-based model to detect such practices. The need to raise quantitative performance metrics to support career goals has created immense pressure on researchers to publish in the literature as frequently as possible. This "publish or perish" syndrome appears to be fueling a rise in scholarly journals and conferences that provide quicker and easier routes to publication. However, such avenues sometimes involve questionable academic practices with important ethical ramifications. One notable example is the proliferation of predatory publishing, including predatory journals and fake conferences. The widening impact of such activities is beginning to prompt academic societies, publishers, and institutions to take measures. This paper discusses the issues on predatory publishing practices, and some of the actions taken by various stakeholders to address these practices. In order to build a transparent and sustainable scholarly publishing ecosystem, this study highlights multi-dimensional and specific solutions, including reforms to research ethics codes, research management rules, and legal protection from exploitative practices. This paper proposes an ICT-based cooperative model for monitoring of predatory publishers as a potential solution to create a sustainable and transparent infrastructure for a scholarly publication system guarding against misconduct in publishing practices.

Social Supply Chain Practices and Companies Performance: An Analysis of Portuguese Industry

  • PINTO, Luisa
    • 유통과학연구
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    • 제17권11호
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    • pp.53-62
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    • 2019
  • Purpose: This research aims to study the internal and external social practices of supply chain management along with economic and social performance of eight Portuguese companies from different industrial sectors. Through empirical data derived from eight case studies, five research propositions are suggested and tested. Research, design, data and methodology: The data was collected through 22 semi-structured interviews with general, procurement, and environmental/safety managers from eight companies from different industrial sectors. Secondary data was collected from reports, websites, and companies' internal documentation. Results: The analysis identifies the most important social practices considered by managers, as well as the performance measures that are most appropriate and most widely used to evaluate the influence of social practices on corporate economic and social performance. The results support four of the five propositions of this research. Companies' economic and social performance are affected by the implementation of social practices into the supply chain, namely the internal social practices. Conclusions: The findings confirmed that there is a positive relationship between internal social practices and economic performance. Internal social supply chain practices contribute to improve social performance. It also identifies the social practices which have negative effects on focal company performance.

A Study on the Purchase Status and Behavior of Cosmetics Using SNS of Men in their 20s

  • Seong-Hyeon SHIN;Jae-Seong LEE;Young-Hun GWAK;Young-Jin SO
    • 웰빙융합연구
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    • 제6권4호
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    • pp.21-26
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    • 2023
  • Purpose: This study was conducted to examine the structural relationships among mothers' parenting practices, child's self-esteem, and child's well-being and to explore the mediating effects of mothers' parenting practices on child's well-being through child's self-esteem. Research design, data, and methodology: Data from the 10th and 13th waves of the Korean Child Study Panel were used for the study, and data from 1,213 mothers and child were analyzed using SPSS 28.0 and the R statistical program. Results: First, in the relationship between the mother's parenting practices, the child's self-esteem, and well-being, the mother's authoritative parenting practices were positively correlated with the child's self-esteem and well-being. Second, the mother's authoritative parenting practices in preschool directly influenced the child's self-esteem in late school, and the child's self-esteem directly influenced the child's well-being. Third, mothers' authoritative parenting practices in the preschool years had a static effect on child's Well-being through the mediation of child's Self-Esteem in the late school years. The direct mediation effect of the Child's Self-Esteem was confirmed. Conclusions: To promote child's Well-being, mothers should adopt authoritative parenting practices with affection and control and try to improve child's self-esteem. In addition, programs that focus on improving child's self-esteem can be expected to enhance school-aged child's well-being.

과학과 행동영역에 대한 과학 교사들의 인식 조사 (Science Teachers' Perceptions of Science Practices)

  • 박현주;정대홍;최원호
    • 한국과학교육학회지
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    • 제31권1호
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    • pp.61-77
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    • 2011
  • 이 연구는 과학과 평가에 이용되는 행동 영역에 대한 과학 교사들의 인식을 조사하였다. 행동 영역은 학생들이 과학 지식을 어떻게 이해하고 과학적 탐구를 어떻게 수행하는지에 대한 정보를 알려준다. 연구 참여자는 서울 지역 중, 고등학교에서 5년 이상 근무한 7명의 과학 교사였고, 연구를 위해 국가수준 학업성취도 평가에서 기출된 27문항으로 구성된 구조화된 질문지와 심층 면담이 진행되었다. 질문지와 면담 내용은 동료 연구자와 함께 분석하고 논의하였다. 연구 결과, 과학교사들은 문항에 포함된 소재나 소재의 제시 방법에 근거해 행동 영역을 결정하는 경향이 있었다. 그리고 교사들이 문항 해결에 필요할 것이라고 예상한 정보와 사고 과정에 따라 행동 영역을 다르게 인식 하였으며 또한 행동 영역의 정의와 의미에 대한 이해정도가 달랐다.

애자일 실천법의 혜택에 대한 실증 분석 (An Empirical Analysis of the Benefits of Agile Practices)

  • 김자희;박찬혁;송효정
    • 한국IT서비스학회지
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    • 제20권2호
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    • pp.33-55
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    • 2021
  • Many agile practices have been suggested for software development flexible enough to adapt to a rapidly changing environment. However, too many agile practices hinder computer engineers from deciding which agile practices are suitable for a given project. They need guidelines of the benefits an agile practice provides for a project, and how many of its benefits are effective. Therefore, this study investigates IT experts' perspectives on each agile practice's effectiveness in their projects using a repertory grid technique. Based on an analysis of data collected from 23 Korean IT experts about 33 agile projects, we elicit 361 cognitive effects categorized into 30 benefits using content analysis. Next, we identify agile practices that are primarily used and recognized as positive and further examine what benefits many agile practices usually bring. Finally, we evaluate the level of benefits overall that each agile practice provides.