• 제목/요약/키워드: 과학적 모델

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모델 구성을 통한 지구과학 교수-학습 활동의 제안

  • O, Pil-Seok
    • 한국지구과학회:학술대회논문집
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    • 2005.02a
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    • pp.101-107
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    • 2005
  • 본 논문에서는 모델 구성을 통한 교수-학습 활동을 지구과학 수업을 위한 유용한 방법의 하나로 제안하였다. 모델 구성은 지구과학자들이 직접적으로 경험하기 어려운 지구과학적 현상이나 과정을 연구하기 위하여 동원하는 방법으로서, 지구과학의 본질적 속성을 반영한 수업을 개발하는 데 이용할 수 있다. 모델 구성을 통한 지구과학 수업은 학생들이 지구과학적인 현상이나 과정에 대한 모델을 창안하고 학생들이 서로 모델에 대한 의견을 교환하며 지속적으로 모델을 수정해 나가는 순환적인 과정(creation-communication-change cycle)으로 진행될 수 있으며, 학습자들의 사고 과정을 촉진시켜 여러 가지 학습 효과를 가져올 수 있다. 따라서, 지구과학 교육 현장에서 학생들이 능동적으로 참여하는 지구과학 수업을 위하여 모델 구성을 통한 교수-학습 활동이 적극적으로 실천되고 그 효과를 자세히 검토하는 일이 필요하다.

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Understanding of Group Modeling Process with Geological Field Trip applied on Social-Construction of Scientific Model: Focusing on Constraints (과학적 모델의 사회적 구성 수업을 적용한 야외지질학습에서 나타나는 조별 모델 구성과정 이해: 제약조건을 중심으로)

  • Choi, Yoon-Sung;Choi, Jong-Rim;Kim, Chan-Jong;Choe, Seung-Urn
    • Journal of the Korean earth science society
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    • v.38 no.4
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    • pp.303-320
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    • 2017
  • Purpose of this study is understanding of group modeling process focusing on constraints with geological field trip applied on social-construction of scientific model. This study was carried out on 12 students of 3 groups who participate in the study 'S' gifted education center. Students were conducted to theme of 'How was formation of Mt. Gwanak?' on 2 field trip classes and 3 modeling classes. Semi-structured interviews, all discourse of field trip and modeling classes, records of personal and group activity were analyzed to constraints based on theoretical background proposed by Nersessian (2008). Results as follows. First, sources of constraints are scientific knowledge, contents observed by students during field trips and additional materials things to be explained by model during modeling class with geological field trip applied on social-construction of scientific model. Second, there are 3 types of constraints to affect making group modeling. It is that shared constraint which used commonly by all the group members. It called selected constraint that used during the initial modeling and later were reflected on for use in the group modeling. And it is that generated constraints, which were not in the initial modeling but were used later in the group modeling. This study suggests that not only the constraints can help to understand of making group model through how they used but also show that example of learning with geological field trip on social-construction of scientific model to contribute school science.

Relation between Science and Technology (과학과 기술의 관계)

  • Kim Yoo-Shin
    • Journal of Engineering Education Research
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    • v.1 no.1
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    • pp.57-79
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    • 1998
  • In this paper, I advocate interactive model which treats science and technology as distinguishable subcultures each with their own bodies of lore and competence against the traditonal hierachical model which treats technology as applied science. For engineering science which is a component in technology as knowledge, I count design as the core part of engineering and discuss the characteristic of engineering design. I also critically assess the models of technological knowledge change, Khunian model and variation-selection model to understand the relation between science and technology. I propose a model that science and technology interaction is mediated interaction. I only outline the plausibility of this model. Industrial research is a modern form of the interaction between science and technology. I discuss Reich who focused on the broad background of industrial research and MeyerThurow who has microperspective in industrial research. The conclusion I draw from the discussion, is that through industiral research, the science-technology interaction become more structured and autonomous, and the scientists and engineers become simply patrs of the structure of industrial research rather than the personal subject.

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A Study on the Effect on the New Teaching Strategy Facilitating Reflective Thinking in the Learning of the Particulate Nature of Matter (물질의 입자성 학습에서 반성적 사고를 촉진시키는 새로운 입자모델 교수전략의 효과 - 초등학교 예비교사를 대상으로 -)

  • Kim, Do Wook
    • Journal of the Korean Chemical Society
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    • v.44 no.6
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    • pp.600-610
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    • 2000
  • The purpose of this study was to design the new teaching strategy based on the particulate model facilitating the reflective thinking (RE-PM) in the learning of the particulate nature of matter, and to investigate the effect of the new teaching strategy in compare with the traditional teaching strategy (TS-PM) after treating with new teaching strategy on preliminary teachers of elementary school. The problems of traditional teaching strategy are as follows: 1) Most of students didn't think the particulate model connected with practical material. 2) Most of students have a tendency of the rote memory on learning of the traditional particulate model. 3) The ratio of changing the view of continuous matter into the view of particulate nature of matter was very low, after learning the particulate model using of the traditional teaching strategy. The new teaching strategy facilitating the reflective thinking was more effective on the understanding of particulate nature of matter and the driving of motivation than the traditional teaching strategy in the learning of the particulate nature of matter.

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Effect of Infographic Instruction to Promote Elementary Students' Use of Scientific Model (초등학생들의 과학적 모델 사용 활성화를 위한 인포그래픽 수업의 효과)

  • Jung, Jinkyu;Kim, Youngmin
    • Journal of The Korean Association For Science Education
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    • v.36 no.2
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    • pp.279-293
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    • 2016
  • The purpose of this study was to analyze the effect of infographic instruction to promote the use of the scientific model in the 'lens' unit of elementary science textbooks. The participants were $6^{th}$ grade students(n=53) of G elementary school in G city, Gyeongsangnam-do. For this study, the lesson plan of the 'lens' unit consisted of three steps as investigation of students' prior concept about the lens, scientific model construction activity, and infographic construction activity. We then analyzed the results of this study from three perspectives: the scientific concept, scientific model, and infographic. Before the lesson, students focused on the external shape and material of the lens in prior concept of it. However, after the scientific model construction activity and infographic construction activity, students' scientific concept about the lens improved in the categories of features of lens, features of glasses, light path, and applications of the lens. In terms of the scientific model, use of type and frequency of scientific model increased more in the infographic construction activity than the scientific construction model activity. Also, in terms of infographic, the two infographic types as function based infographic and connection based infographic used more than non-infographic in the infographic construction activity. Also, the frequency of Gestal theory's visual perception increased more in the infographic construction activity than the scientific model construction activity.

An Investigation into the Secondary Science Teachers' Perception on Scientific Models and Modeling (과학적 모델과 모델링에 대한 중등 과학 교사의 인식 탐색)

  • Cho, Eunjin;Kim, Chan-jong;Choe, Seung-urn
    • Journal of The Korean Association For Science Education
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    • v.37 no.5
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    • pp.859-877
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    • 2017
  • The purpose of this study is to probe secondary science teachers' perception on scientific models and modeling. A total of 50 experienced science teachers were surveyed with 10 open-ended questions about several aspects of models and modeling: definition, examples, purpose, multiplicity, changeability, design/construction, evaluation and beliefs in the use of models and modeling as a teaching tool. The analysis of the data shows the following results: 1) understanding of models and modeling held by a majority of experienced secondary science teachers was far from that of experts as they concentrated on a model's superficial, representative, and visual functions, 2) when it comes to their view toward the use of a model, a model does not remain in the stage of 'doing science' but in the stage of being a subsidiary teaching tool for the teacher's explaining and the students' understanding of scientific concepts, 3) the subjects they majored in made meaningful differences in their contextual understanding of models and modeling, 4) though most of the teachers acknowledged the importance of teaching about models and modeling, even a lot of them showed a negative position toward the opinion that they are willing to apply modeling to their classes. Implications of the results were discussed in terms of intervention in order to enhance secondary science teachers' understanding and pedagogical content knowledge of models and modeling.

Analysis of the Manners of Using Scientific Models in Secondary Earth Science Classrooms: With a Focus on Lessons in the Domains of Atmospheric and Oceanic Earth Sciences (중등학교 지구과학 수업에서 과학적 모델의 활용 양상 분석: 대기 및 해양 지구과학 관련 수업을 중심으로)

  • Oh, Phil-Seok
    • Journal of The Korean Association For Science Education
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    • v.27 no.7
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    • pp.645-662
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    • 2007
  • The purpose of this study was to explore the manners in which models are used in secondary science classrooms. A total of thirteen video-recordings of science lessons dealing with the domains of atmospheric and oceanic earth sciences and their verbatim transcripts were analysed both quantitatively and qualitatively. Interviews with three inservice science teachers were also conducted. Six interrelated assertions were generated as the result of the study: 1) The most frequently used models in secondary earth science classrooms include two-dimensional pictorial, symbolic, iconic, and diagrammatic ones; 2) Science teachers employ models as a mode of representation to make the subject matter available to students; 3) In earth science classrooms, teachers use typical forms of models in intensive manners; 4) Students themselves deal with models on a few occasions, but they just follow similar procedures with the same models; 5) Teachers talk rarely about the nature of scientific models and provide few opportunities for students to think about it; and, 6) Teachers in practice think that the value of using models should be appraised in consideration of the pedagogical intentions of the teacher. Implications for science education and science education research were discussed.

A Review of Model and Modeling in Science Education: Focus on the Metamodeling Knowledge (과학교육에서 모델 및 모델링에 대한 고찰 -메타모델링 지식을 중심으로-)

  • Cho, Hye Sook;Nam, Jeonghee;Oh, Phil Seok
    • Journal of The Korean Association For Science Education
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    • v.37 no.2
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    • pp.239-252
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    • 2017
  • The purpose of this study is to examine metamodeling knowledge and its components, which means knowledge about model and modeling required for students and teachers for successful application of modeling in the field of science education based on research literature. For this, we analyzed and categorized major previous studies on modeling and modeling through research literature methods. Metamodeling knowledge aims to recognize models and modeling and is the most crucial element to create a scientific model in scientific modeling practice. The point of view of metamodeling knowledge proposed in this study is categorize nature of model, multiplicity of model, purpose of model, modeling process, and evaluation and revision of model. Students should be able to achieve more in-depth understanding through the awareness of the nature of the model. The development of metamodeling knowledge can facilitate students' science learning.

Effect of Learning Scientific Model's Algorithm on Student's Understanding of Scientific concept : Focus on the Acid-Base Concept (과학 모델의 알고리즘의 학습이 학생들의 과학 개념 이해에 미치는 영향: 산-염기 개념을 중심으로)

  • Paik, Seoung-Hey;Park, Chul-Yong;Choi, Hee
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2017.07a
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    • pp.384-385
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    • 2017
  • 과학 모델은 복잡한 자연현상을 단순화하고 패턴화한 것이다. 따라서 과학 모델은 특정한 알고리즘을 가지며, 과학 모델에 대한 이해는 모델이 갖는 특정한 알고리즘에 대한 이해와 직접적으로 관련되어있다. 본 연구에서는 많은 학생들이 대안 개념을 가지고 있는 산-염기를 주제로 하여, 이 모델이 가지는 알고리즘을 학습하기 위한 프로그램을 설계하고, 알고리즘을 학습 하였을 때 과학 학습에 미치는 효과를 확인하였다. 고등학생 3학년을 대상으로 4차시로 수업을 진행하였으며, 수업의 사전과 사후 검사를 실시하여, 학생들의 모델에 대한 이해를 분석하였다. 수업 결과, 학생들은 모델의 정의와 화학반응 및 화학평형의 정성적인 부분에서는 이해의 향상을 보였으나, 정량적인 부분에는 효과를 보이지 못하였다. 이는 화학이 많은 수의 입자를 고려해야 하는 독특한 과목의 특성에 기인하며, 이를 보완하기 위하여 추후 컴퓨터프로그램을 교육 도구로 사용하는 수업을 통해 후속연구를 진행하고자 한다.

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