• 제목/요약/키워드: Scientific process

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생명 현상에 대한 과학적 가설 생성과 수리 연산에서 나타나는 두뇌 활성: fMRI 연구 (Brain Activation in Generating Hypothesis about Biological Phenomena and the Processing of Mental Arithmetic: An fMRI Study)

  • 권용주;신동훈;이준기;양일호
    • 한국과학교육학회지
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    • 제27권1호
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    • pp.93-104
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    • 2007
  • 이 연구의 목적은 과학적 가설 생성 과정의 두뇌 활성화 특성을 수리 연산 과정과 비교하여 3.0T fMRI를 이용하여 규명하는 것이다. 이를 위하여 16명의 건강한 남자 피험자가 실험에 자발적으로 참여하였으며, 과학적 가설 생성 과제와 수리 연산 과제를 684초 동안 수행하여 fMRI 영상을 측정하였다. 측정한 후 언어적 보고 자료를 수집하여 fMRI 영상 자료의 신뢰도를 확보하였다. 언어적 보고의 분석 결과 수집한 fMRI 영상 자료 전부를 통계적 분석 대상 자료에 포함시켰다. SPM2 프로그램을 이용하여 통계적으로 분석한 결과, 과학적 가설 생성 과정은 수리 연산 과정과 다른 독립적인 두뇌 네트 을 가지고 있는 것으로 나타났다. 과학적 가설 생성 과정에서는 측두엽의 방추이랑(fusiform gyrus)에서 의문 상황 분석으로 이끌어내진 의미가 전두엽에서 부호화하는 과정이 일어난다고 할 수 있다. 수리 연산 과정은 전두엽과 두정엽의 연합된 영역이 중요한 역할을 하며 기능적 숙련도는 두정엽 영역이 관여하는 것으로 생각된다. 또한 과학적 가설 생성 과정에서는 과학적 감성의 생성도 동반하는 것으로 밝혀졌다. 이러한 연구 결과는 과학적 가설 생성 과정을 두뇌 과학적 측면에서 고찰 할 수 있도록 하였으며, 과학적 가설 생성 학습 프로그램 개발을 위한 기초 자료로 활용될 수 있을 것이다. 또한 과학적 가설 생성 학습 프로그램은 두뇌-기반 학습의 한 전형으로 제안할 수 있다.

통합 과학 과정의 접근 방법에 관한 비교 연구 - 개념 중심 방법과 과정 중심 접근 방법을 중심으로 - (On Approaches to Integrated Science Curriculum - About the concept centered approach and the process centered approach -)

  • 권재술;박범익
    • 한국과학교육학회지
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    • 제1권1호
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    • pp.35-44
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    • 1978
  • In this study, concept centered approach and process centered approach in developing integrated science curriculum were compared and compromised between two approaches. It seems that two approaches are in antagonistic relations. The superficial conflictions getween two approaches are not because they are antagonistic in their nature, but because their interesting points are different. The concept centered approahc is interest in fundamental scientific concepts and the process centered approach is interested in scientific enquiry. If science is the composition of enquiry processes and concepts produced by enquiry processes, scientific enquiry process and scientific concept must not be inconsistant. Although concepts are not unchangeable, new concepts and advanced concepts are based on the old concepts. Enquiry activity which is not based on concepts also cannot be significant enquiry. Although fundamental concepts in science is very important, in order to apply concepts to varios phenomena, and to understand concepts more deeply the student should understand concept through the process by which the concepts are derived. As we have discussed above, only the concept centered approach or the process centered approach itself is not complete. Comparing these two uncomplete approaches to integrated science curriculum, we can find out that two approaches are in complementary relations. Because integrated science is based on the idea that natural phenomena should not be understood in fragments, but should be understood as mutually related system' the integrated science curriculum includes both the fundamental scientific concepts and scientific enquiry processes.

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초.중학생들의 과학탐구능력 측정도구의 개발 (The Development of an Instrument for the Measurement of Science Process Skills of the Korean Elementary and Middle School Students)

  • 권재술;김범기
    • 한국과학교육학회지
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    • 제14권3호
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    • pp.251-264
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    • 1994
  • There are a considerable number of instruments in testing science process skills in Korea as well as America and Europe. However, it has been difficult to find the instruments encompass the wide range of scientific process skills. Most instruments developed and used in Korea were focused on a school level or a few components of scientific process skills. In this study, the researchers examined the whole body of scientific process and identified 10 component skills. Three items for each component process skills were developed and revised by two pilot tests. The final instruments showed moderate difficulty, discrimination index, reliability, and validity. The instrument was also tested the usability by finding differences of students' ability on science process skills by grade levels, sexes, and city size. The results showed that the instrument was proved to be useful to discriminates the differences.

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구성놀이에서 드러나는 유아들의 과학적 사고과정 탐색 : 재미반의 사례를 중심으로 (An Exploration into the Process of Scientific Thinking on the part of Young Children as seen through Constructive Play : Focusing on the Cases of the Jaemi Class)

  • 백은영
    • 아동학회지
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    • 제36권3호
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    • pp.139-154
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    • 2015
  • The purpose of this study was to explore the process of scientific thinking as it is revealed through the cases of constructive play for young children. For this purpose, the researcher observed and interviewed six four-year-olds in the Jaemi Class while recording them with a camcorder during a free choice activity class in the morning from April 23 to June 25, 2012. The observations were analyzed in chronological order according to the changes of theories and structure as presented by the children themselves. The process of scientific thinking in constructive play for young children can be divided into presentation of naive theories, the abandonment of naive theories according to repetitive experiences and the discovery of inconsistency, the representation of alternative theories, and the abandonment of alternative theories according to repetitive experiences and the discovery of contradictions. On the basis of the results, constructive play has proved to serve a valuable educational function by inducing scientific thinking processes in children. On the basis of this finding, the researcher suggests the need to provide appropriate educational support to teachers.

초등과학의 '지구와 우주' 분야에서 POE 수업모형 적용이 과학탐구능력 및 학업성취도에 미치는 영향 (The Effects of POE Model on Science Process Skills and Academic Achievement in Domain 'Earth and Space' of Elementary School Science)

  • 이상봉;이용섭
    • 대한지구과학교육학회지
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    • 제3권2호
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    • pp.132-140
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    • 2010
  • The purpose of this research is to explore the effects of the POE(Prediction-Observation-Explanation) teaching-learning model on the academic achievement and the capability of scientific inquiry of elementary school students. POE teaching-learning model is a three stage process modeling scientific inquiry : Prediction, Observation, and Explanation. This research is to see the effectiveness of the POE method in earth science class by applying this simple practical strategy out of various methods in science teaching with the purpose of improving the capability of scientific inquiry and the academic achievement of learners. The findings of the study are as follows: First, the POE strategy in science teaching-learning was found effective for the improvement of learners' scientific inquiry capability. Second, the POE strategy in science teaching-learning is effective for the improvement of learners' academic achievement in science. The findings mentioned above suggest that using the POE strategy in science class of elementary science education has significant effects on improvement of scientific academic achievement and scientific inquiry capability of learners compared with the general science teaching-learning strategy. It also shows to be highly recommendable for use in science class.

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초등학교 예비 교사와 현직 교사의 과학 및 과학 교육에 관한 신념 (Beliefs of Elementary Pre-service and In-service Teachers about Science and Science Education)

  • 김정민;여성희;심규철
    • 한국초등과학교육학회지:초등과학교육
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    • 제26권5호
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    • pp.489-498
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    • 2007
  • This study focuses on surveying and examining the beliefs of elementary pre-service and in-service teachers about science and science education. The instrument consisted of 21 items about science and science education on a 5-Likert scale(score range from 1 to 5). The one contained science knowledge and scientific invention, and the other contained science teacher, learning science and science learning and teaching. Data were collected from 76 pre-service and 96 in-service elementary teachers(24 male and 148 female). The elementary pre-service and in-service teachers had higher level belief about that science knowledge should be acquired by sequential scientific process, the beliefs of in-service teachers was more explicit than those of pre-service teachers. They had beliefs to educate learners by providing scientific joyfulness and sequential scientific process. But, in-service teachers had difficulties to perform scientific process-based activities. It is necessary to provide scientific experiences to understand the nature of science in pre-service and in-service programs.

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과학적 맥락의 논의 과제 해결 과정에서 나타나는 초등학생들의 논의 과정 요소의 특성에 관한 연구 (A Study on the Characteristics of the Component of Argumentation in the Process of Solving Scientific Argument Tasks among Elementary Students)

  • 이석희;서봉희;김용권
    • 한국초등과학교육학회지:초등과학교육
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    • 제26권1호
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    • pp.76-86
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    • 2007
  • The purpose of this study is to investigate the characteristics of scientific argumentation and its development in the process of mutual discussion activities by elementary school students in the 5th grade. The results of this study can be summarized as below: First, students used diversity argumentation components for solving the given argumentation theme, however, most students used the assertion or the basis of a simple expression of their own thoughts as a high ratio, and components of a one directional explanatory argumentation process rather than components of a mutual communicative argumentation process. Second, an asymmetric group showed a high-use ratio of communicative argumentation components and achieved argumentation activities harmoniously between a symmetric group and an asymmetric group in organization of groups for solving argumentation themes. It was found that students in the transitional period showed the highest rate of participation within the discussion process. Moreover, they also showed the highest rate of development of discussion skills whilst in the process of using scientific problems. In conclusion, this phenomenon is caused by highlighting the mutual action between the teacher and the student rather than placing an emphasis on the mutual action among students during field instructions.

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초등학교 과학영재의 귀인성향과 과학 관련 태도 및 과학탐구능력과의 관계 (Relationship of Attribution Styles and Science-related Attitude and Science Process Skills of Science-gifted)

  • 이용섭;박미진
    • 대한지구과학교육학회지
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    • 제3권2호
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    • pp.124-131
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    • 2010
  • The purpose of this study is examine relationship of attribution styles and attitude toward Science and Science Process Skills of Science-gifted, to understand unique characteristics of the Science-gifted and to give useful information that can be use in develop special programs for the Science-gifted. The result of this study were as follows: First, there was no difference between genders. But there was a significant difference in attribution of luck. Second, there was a correlation between internal tendencies and Scientific attitude. Especially attribution of effort correlated with sub - constituent of Scientific attitude. Internal tendencies correlated with the Cognition in Scientific Professions that sub - constituent of the attitude toward Science. Third, There was a correlation between external tendencies and the interest activity in Science that sub - constituent of the attitude toward Science. There are correlations between sub - constituent of the attitude toward Science and sub - constituent of external tendencies that attribution of luck and interest in Scientific Professions, attribution of task difficulty and Cognition activity in Science. Fourth There was no correlation between Attribution styles and Science Process Skills. But Internal tendencies correlated with classification that sub - constituent of Science Process Skills. And classification correlated with attribution of ability that sub - constituent of external tendencies. Attribution of effort that sub - constituent of internal tendencies correlated with Science Process Skills.

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논의활동이 초등학생의 과학글쓰기에 미치는 영향 (The Influence of Argumentation on the Scientific Writing of Elementary School Students)

  • 강묘정;공영태
    • 과학교육연구지
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    • 제38권2호
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    • pp.286-301
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    • 2014
  • 이 연구의 목적은 초등학생의 논의활동과 과학글쓰기와의 상호 관련성을 정성적으로 알아보는데 있다. 이와 같은 과제를 해결하기 위하여 과학적 상황 및 사회과학적 상황으로 구성된 9가지 논의 및 과학글쓰기 주제를 가지고 초등학교 5학년 학생을 대상으로 논의 및 과학글쓰기 활동을 행하였다. 논의과정에서 나눈 대화내용과 논의활동 전 후에 작성한 과학글쓰기의 내용을 녹음하고 전사하여 과학 글쓰기 세 가지 목표영역에 준거한 분석틀에 따라 비교 분석하였다. 이번 연구를 통하여 얻어진 결과는 다음과 같다. 첫째, 논의활동 중의 다양한 의견들은 논의 후 과학글쓰기에서 과학글쓰기 3가지 목표영역인 과학성, 논리성, 창의성이 신장되는데 긍정적인 효과를 주었다. 둘째, 논의활동이 논의 후 과학글쓰기에 나타나는 표현 형태는 크게 세 가지로 범주화할 수 있었다. 유형 1) 논의과정에서 새롭게 드러난 자신의 과학개념, 주장, 아이디어를 보충하여 표현하는 경우, 유형 2) 논의과정에서 다른 사람의 과학개념, 주장, 근거, 아이디어를 자기화하여 나타내는 경우, 유형 3) 논의활동에 기초하여 새로운 사실을 추론하거나 새로운 아이디어를 표현하는 경우이다.

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영역 특수적인 입장에서의 과학적 창의성에 대한 정의, 구성요인에 대한 탐색 (Exploration About the Component and Definition of the 'Scientific Creativity' in a Domain-specific View of the Creativity)

  • 임성만;양일호;임재근
    • 과학교육연구지
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    • 제33권1호
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    • pp.31-43
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    • 2009
  • 본 연구는 창의성의 영역 특수적인 입장에서 과학적 창의성을 다룬 논문들을 내러티브 리뷰의 방법을 사용하여 탐색한 것이다. 창의성을 바라보는 2가지 입장 중에서 한 가지인 영역 특수적인 입장은 창의성에 대해 "그 아동이 얼마나 창의적인가?"라는 창의성의 일반적인 입장에서 "그 아동은 어느 영역에서 창의적인가"라는 영역 특수적인 접근방법으로 창의성을 바라보는 것이다. 이러한 관점에서 본 연구는 과학을 바라보았을 때, 과학적 창의성은 어떻게 정의될 수 있으며, 또 어떤 구성 요인들로 이루어졌는가를 탐색해 본 연구이다. 과학적 창의성 관련 논문들에 대한 리뷰를 통해 본 연구는 과학적 창의성은 과학적인 지식을 바탕으로 논리적이고 분석적인 사고를 통해 새롭고 적절한 것을 찾아내는 능력으로 정의할 수 있었으며, 과학적 창의성의 구성 요인은 정의적, 인지적, 환경적 요인으로 나눠 살펴본 결과, 영역 특수적인 관점에서 가장 두드러지게 차이를 보이는 과학적 창의성의 인지적 요인은 과학 관련 지식, 과학 탐구과정, 문제 발견력, 문제 해결력 등으로 구성되어짐을 알 수 있었다. 이러한 과학적 창의성에 대한 논의는 보다 과학적 창의성에 대한 실증적인 연구에 대한 좋은 길잡이가 될 것으로 사료된다.

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