• Title/Summary/Keyword: Scientific process

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

  • Kwon, Yong-Ju;Shin, Dong-Hoon;Lee, Jun-Ki;Yang, Il-Ho
    • Journal of The Korean Association For Science Education
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    • v.27 no.1
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    • pp.93-104
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    • 2007
  • The purpose of this study is to investigate brain activity both during the processing of a scientific hypothesis about biological phenomena and mental arithmetic using 3.0T fMRI at the KAIST. For this study, 16 healthy male subjects participated voluntarily. Each subject's functional brain images by performing a scientific hypothesis task and a mental arithmetic task for 684 seconds were measured. After the fMRI measuring, verbal reports were collected to ensure the reliability of brain image data. This data, which were found to be adequate based on the results of analyzing verbal reports, were all included in the statistical analysis. When the data were statistically analyzed using SPM2 software, the scientific hypothesis generating process was found to have independent brain network different from the mental arithmetic process. In the scientific hypothesis process, we can infer that there is the process of encoding semantic derived from the fusiform gyrus through question-situation analysis in the pre-frontal lobe. In the mental arithmetic process, the area combining pre-frontal and parietal lobes plays an important role, and the parietal lobe is considered to be involved in skillfulness. In addition, the scientific hypothesis process was found to be accompanied by scientific emotion. These results enabled the examination of the scientific hypothesis process from the cognitive neuroscience perspective, and may be used as basic materials for developing a learning program for scientific hypothesis generation. In addition, this program can be proposed as a model of scientific brain-based learning.

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

  • Kwon, Jae-Sool;Park, Bum-Ik
    • Journal of The Korean Association For Science Education
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    • v.1 no.1
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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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The Development of an Instrument for the Measurement of Science Process Skills of the Korean Elementary and Middle School Students (초.중학생들의 과학탐구능력 측정도구의 개발)

  • Kwon, Jae-Sool;Kim, Beom-Ki
    • Journal of The Korean Association For Science Education
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    • v.14 no.3
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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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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 (구성놀이에서 드러나는 유아들의 과학적 사고과정 탐색 : 재미반의 사례를 중심으로)

  • Baik, Eunyoung
    • Korean Journal of Child Studies
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    • v.36 no.3
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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.

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

  • Lee, Sang-Bong;Lee, Yong-Seob
    • Journal of the Korean Society of Earth Science Education
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    • v.3 no.2
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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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Beliefs of Elementary Pre-service and In-service Teachers about Science and Science Education (초등학교 예비 교사와 현직 교사의 과학 및 과학 교육에 관한 신념)

  • Kim, Jung-Min;Yeau, Sung-Hee;Shim, Kew-Cheol
    • Journal of Korean Elementary Science Education
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    • v.26 no.5
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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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A Study on the Characteristics of the Component of Argumentation in the Process of Solving Scientific Argument Tasks among Elementary Students (과학적 맥락의 논의 과제 해결 과정에서 나타나는 초등학생들의 논의 과정 요소의 특성에 관한 연구)

  • Lee, Seok-Hee;Seo, Bong-Hee;Kim, Yong-Gwon
    • Journal of Korean Elementary Science Education
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    • v.26 no.1
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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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Relationship of Attribution Styles and Science-related Attitude and Science Process Skills of Science-gifted (초등학교 과학영재의 귀인성향과 과학 관련 태도 및 과학탐구능력과의 관계)

  • Lee, Yong-Seob;Park, Mi-Jin
    • Journal of the Korean Society of Earth Science Education
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    • v.3 no.2
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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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The Influence of Argumentation on the Scientific Writing of Elementary School Students (논의활동이 초등학생의 과학글쓰기에 미치는 영향)

  • Kang, Myo-Jeong;Kong, Young-Tae
    • Journal of Science Education
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    • v.38 no.2
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    • pp.286-301
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    • 2014
  • The purpose of this study is to examine the influence of argumentation for elementary students' scientific writing. Using nine subjects that were comprised of scientific situations and social scientific situations, this study was applied to four 5th grade students utilizing argumentation and scientific writing. The students' scientific writing and argumentation were collected and analyzed based on three domains of scientific writing: scientific thinking, logic, and creativity. The results from this study are as follows. First, the various contents of argumentation positively affected all of the scientific writing domains in post-argumentation scientific writing. Second, the contents of argumentation appeared in the post-argumentation scientific writing as three different forms: 1) Each individual's scientific concepts, claims, and ideas, which were newly mentioned in the process of argumentation, were expressed, 2) Their classmates' claims, grounds and ideas, which were discussed in the process of argumentation, were expressed through internalization, and 3) Expanded ideas, new claims and inferences based on the argumentation were expressed.

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

  • Lim, Sung-Man;Yang, Il-Ho;Lim, Jae-Keun
    • Journal of Science Education
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    • v.33 no.1
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    • pp.31-43
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    • 2009
  • The purpose of this study is to identify a domain-specificity of the scientific creativity and the component of scientific creativity. Conducted from theoretical study, this study suggests that a domain-specific view of creativity offers a more useful and constructive components of scientific creativity based on the literature associated with the component of scientific creativity. Scientific creativity has a domain-specific component and so there is need to distinguish scientific creativity from creativity in general. As a result, scientific creativity is different from other creativity it is concerned with scientific knowledge, science process skill, creative scientific problem finding and solving and so on. And since scientific creativity is a kind of ability, it is possible to improve through a scientific creativity program.

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