• 제목/요약/키워드: Scientific model

검색결과 1,300건 처리시간 0.024초

Teaching Models for Scientific Inquiry Activity through the Nature of Science (NOS)

  • Park, Jong-Won
    • 한국과학교육학회지
    • /
    • 제28권7호
    • /
    • pp.759-767
    • /
    • 2008
  • This article arose from the previous studies, which suggested a synthetic list for the nature of science (NOS), discussed the relationship between the NOS and scientific inquiry and the development of the NOS in the context of scientific inquiry. In this article, for teaching scientific inquiry through the NOS, I proposed three teaching models - reflection, interaction, and the direct model -. Within these teaching models, understanding the NOS is viewed as a prerequisite condition for the improved performance of scientific inquiry. In the reflection model, the NOS is embedded and reflected in scientific inquiry without explicit introduction or direct explanation of the NOS. In the interaction model, concrete interaction between scientific inquiry and the NOS is encouraged during the process of scientific inquiry. In the direct model, subsequent to directly comprehending the NOS at the first stage of activity, students conduct scientific inquiry based on their understanding of the NOS. The intention of this present article is to facilitate the use of these models to develop teaching materials for more authentic scientific inquiry.

통계(統計)/과학(科學) 데이타 베이스를 위한 개체(個體)-측면(側面) 모형(模型) (An Entity-Aspect Model for Statistical and Scientific Databases)

  • 유철중
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 1987년도 전기.전자공학 학술대회 논문집(II)
    • /
    • pp.1148-1152
    • /
    • 1987
  • This paper analyzes the statistical and scientific entity-aspect model for statistical and scientific databases(SSDB's). The statistical and scientific entity-aspect model(SEAM) is defined an example of the application of the statistical and scientific entity-aspect model is represented. Finally, the statistical and scientific entity-aspect model as a design tool for SSDB is evaluated and the further research areas are suggested.

  • PDF

탐구학습모형이 유아의 과학적 사고 능력에 미치는 영향 (Effects of the Inquiry Model on the Scientific Thinking of Preschoolers)

  • 이영석;임명희;박호철
    • 아동학회지
    • /
    • 제22권2호
    • /
    • pp.237-253
    • /
    • 2001
  • This study examined the effects of the inquiry model on children's scientific thinking ability and processing skills. The experimental classroom of a kindergarten in Seoul was assigned the inquiry model while the control classroom was assigned general scientific education (N=48). Seventeen treatment sessions were applied to the experimental group. Tests to investigate the hypotheses included the Sink and Float Test and a new instrument developed by the researchers. Findings showed that preschoolers receiving the inquiry model of instruction gained higher scores in scientific thinking ability and processing skills than the preschoolers in the classroom using the general scientific education model. In sum, this study proved the superior effect of the inquiry model in developing children's scientific skills and ability.

  • PDF

초등학생들의 먹이 피라미드 예측 모형 구성에서 과학적 추론의 역할 (Role of Scientific Reasoning in Elementary School Students' Construction of Food Pyramid Prediction Models)

  • 한문현
    • 한국초등과학교육학회지:초등과학교육
    • /
    • 제38권3호
    • /
    • pp.375-386
    • /
    • 2019
  • This study explores how elementary school students construct food pyramid prediction models using scientific reasoning. Thirty small groups of sixth-grade students in the Kyoungki province (n=138) participated in this study; each small group constructed a food pyramid prediction model based on scientific reasoning, utilizing prior knowledge on topics such as biotic and abiotic factors, food chains, food webs, and food pyramid concepts. To understand the scientific reasoning applied by the students during the modeling process, three forms of qualitative data were collected and analyzed: each small group's discourse, their representation, and the researcher's field notes. Based on this data, the researcher categorized the students' model patterns into three categories and identified how the students used scientific reasoning in their model patterns. The study found that the model patterns consisted of the population number variation model, the biological and abiotic factors change model, and the equilibrium model. In the population number variation model, students used phenomenon-based reasoning and relation-based reasoning to predict variations in the number of producers and consumers. In the biotic and abiotic factors change model, students used relation-based reasoning to predict the effects on producers and consumers as well as on decomposers and abiotic factors. In the equilibrium model, students predicted that "the food pyramid would reach equilibrium," using relation-based reasoning and model-based reasoning. This study demonstrates that elementary school students can systematically elaborate on complicated ecology concepts using scientific reasoning and modeling processes.

초등 예비교사의 자기 모델 탐구 과정과 과학적 모델에 대한 이해 변화 (Pre-service Elementary Teachers' Inquiry on a Model of Magnetism and Changes in Their Views of Scientific Models)

  • 윤혜경
    • 한국초등과학교육학회지:초등과학교육
    • /
    • 제30권3호
    • /
    • pp.353-366
    • /
    • 2011
  • An alternative vision for science inquiry that appears to be important and challenging is model-based inquiry in which students generate, evaluate and revise their explanatory model. Pre-service teachers should be given opportunities to develop and use their mechanistic explanatory models in order to participate in the practice of science and to have a sound understanding of science. With this view, this study described a case of pre-service elementary teachers' scientific modeling in magnetism. The aims of this study were to explore difficulties preservice elementary teachers encountered while they engaged in a model-based inquiry, and to examine how their understandings of the nature of scientific models changed after the model-based inquiry. The data analysis revealed that the pre-service teachers had difficulties in drawing and writing their own thinking because they had little experience of expressing their own science ideas. When asked to predict what would happen, they could not understand what it meant to make a prediction "based on their model". They did not know how to use or consider their model in making a prediction. At the end of the model-based inquiry they reached a final consensus of a best model. However, they were very anxious about whether the model was the "correct" answer. With respect to the nature of scientific models, almost all of the pre-service teachers initially viewed models only as a communication tool among scientists or students and teachers to help understand others' ideas. After the model-based inquiry, however, many of them understood that they could create, test, and revise their "own" models "by themselves". They also realized the key aspects of scientific models that a model can be changed as evidence is accumulated and a model is a knowledge production tool as well as a communication tool. The results indicated that pre-service elementary teachers' understandings of the nature of scientific models and their previous school science experiences could affect their performance on a model-based inquiry, and their experience of scientific modeling could help them enhance their understandings of the nature of scientific models.

Development of the Scientific Inquiry Process Model Based on Scientists' Practical Work

  • Yang, II-Ho;On, Chang-Ho;Cho, Hyun-Jun
    • 한국과학교육학회지
    • /
    • 제27권8호
    • /
    • pp.724-742
    • /
    • 2007
  • The purpose of this study was to develop a scientific inquiry model that makes scientific inquiry accessible to science teachers as well as students. To develop a scientific inquiry model, we investigated the research process demonstrated by ten scientists who were working at academic research institutions or industrial research institutions. We collected data through scientists' journal articles, lab meetings and seminars, and observation of their inquiry process. After we analyzed the scientists' inquiry strategies and processes of inquiry, we finally developed the Scientist's Methodology of Investigation Process model named SMIP. The SMIP model consists of four domains, 15 stages, and link questions, such as "if, why", and "how". The SMIP model stressed that inquiry process is a selective process rather than a linear or a circular process. Overall, these findings can have implication science educators in their attempt to design instruction to improve the scientific inquiry process.

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

  • 정진규;김영민
    • 한국과학교육학회지
    • /
    • 제36권2호
    • /
    • pp.279-293
    • /
    • 2016
  • 본 연구의 목적은 초등학교 6학년 1학기 3단원 렌즈의 이용단원에서 인포그래픽 수업을 이용하여 학생들이 과학적 모델 사용이 활성화 되는지 알아보는 것이다. 연구 대상은 경상남도 G시의 G초등학교 6학년 53명을 대상으로 실시하였다. 이 연구를 위해, 수업 계획은 학생들의 렌즈에 대한 선개념 조사, 과학적 모델 구성 활동, 인포그래픽 구성 활동으로 3단계로 구성하였다. 그리고 과학적 개념, 과학적 모델, 인포그래픽 3개의 관점으로 연구 결과를 분석하였다. 수업이 이루어지기 전, 학생들은 렌즈에 관해 렌즈의 외형적 형태와 구성물질에 주로 선개념을 가지고 있었다. 그러나 과학적 모델 구성 활동과 인포그래픽 구성 활동을 한 후에는 렌즈의 특징, 안경의 특징, 빛의 나아감, 렌즈의 이용 범주에서 개념적으로 향상된 것을 확인하였다. 과학적 모델 분석 관점에서는 과학적 모델 구성 활동보다 인포그래픽 구성 활동에서 다양한 종류의 과학적 모델이 사용되고 사용 빈도도 높게 나타났다. 또한 인포그래픽 분석 관점에서는 인포그래픽 구성 활동에서 인포그래픽이 아닌 그림보다 기능기반 인포그래픽과 관계기반 인포그래픽이 증가하였다. 그리고 게슈탈트의 시지각 특성의 빈도가 과학적 모델 구성 활동보다 인포그래픽 구성 활동에서 더 높게 나타났다.

과학적 창의성 모델의 제안 -인지적 측면을 중심으로- (A Suggestion of Cognitive Model of Scientific Creativity (CMSC))

  • 박종원
    • 한국과학교육학회지
    • /
    • 제24권2호
    • /
    • pp.375-386
    • /
    • 2004
  • 과학적 창의성은 창의적 사고만으로 발현될 수 없으며, 과학지식내용과 과학적 탐구기능이 함께 사용되게 마련이다. 따라서, 본 연구에서는 과학적 창의성을 위한 사고, 과학지식내용, 과학적 탐구기능의 3 요소로 구성된 인지적 측면에서의 과학적 창의성 모델을 제안하였다. 그리고 모델의 공통요소로 가치, 독창성, 정교성을 포함시켰다. 최근에는 발산적 사고가 곧 창의적 사고라고 보기보다는, 과학적 창의성에 여러 가지 다양한 사고가 필요하다고 강조해왔다. 본 연구에서는 이러한 논의들에 기초하여, 과학적 창의성을 위한 사고로 발산적 사고, 수렴적 사고, 그리고 연관적 사고를 제안하였다. 인지적 측면의 과학적 창의성 모델에 기초하여 구체적인 과학적 창의성 활동 예시를 제시하고, 어떻게 활동자료가 개발될 수 있는지에 대한 제언을 하였다. 앞으로 연구에서는 구체적으로 다양한 과학적 창의성 활동유형을 정의하고, 유형별 학습지도자료를 개발하게 될 것이다.

A Possible Scientific Inquiry Model based on Hypothetico-Deduction Method Involving Abduction

  • Oh, Jun-Young
    • 한국과학교육학회지
    • /
    • 제32권3호
    • /
    • pp.486-501
    • /
    • 2012
  • The aims of this study are to investigate two main problems for the hypothetico-deduction method and to develop a scientific inquiry model to resolve these problems. The structure of this scientific inquiry model consists of accounts of the context of discovery and justification that the hypothetico-deduction holds as two main problems : 1) the heuristic flaw in the hypothetico-deduction method is that there is no limit to creating hypotheses to explain natural phenomena; 2) Logically, this brings into question affirming the consequent and modus tollens. The features of the model are as follows: first, the generation of hypotheses using an analogical abduction and the selection of hypotheses using consilience and simplicity; second, the expansion phase as resolution for the fallacy of affirming the consequent and the recycle phase as resolution for modus tollens involving auxiliary hypotheses. Finally, we examine the establishment process of Copernicus's Heliocentric Hypothesis and the main role of the history of science for the historical invalidity of this scientific inquiry model based on three examples of If/and/then type of explanation testing suggested by Lawson (International journal of science and Mathematics Education, 2005a, 3(1): 1-5) We claim that this hypotheticho-deduction process involving abduction approach produced favorable in scientific literacy rising for science teacher as well as students.

과학영재의 과학문제발견력 관련변인에 대한 구조방정식모형 분석: 과학관련태도와 동기 및 자기조절 학습전략을 중심으로 (An Analysis of Structural Equation Model on the Scientific Problem Finding Ability of the Scientifically Gifted Based on Science Related Attitude, Motivation, and Self-regulation Learning Strategy)

  • 김명숙;한기순
    • 영재교육연구
    • /
    • 제18권1호
    • /
    • pp.23-52
    • /
    • 2008
  • 본 연구는 수도권 대학부설 과학영재교육원에 재학중인 153명의 과학영재를 대상으로 과학문제발견력을 구성하는 학습자요인으로서 과학관련태도와 동기 및 자기조절적 학습전략 변인을 중심으로 가설적 구조모형을 상정하여 구조방정식모형분석을 통해 구조모형을 검증하여 분석하였다. 본 연구의 결과는 다음과 같다. 첫째, 변인들간의 상관분석 결과, 과학관련태도가 긍정적일수록 자아효능감이나 내재적 가치를 나타내는 동기가 유의미하게 높게 나타났으며, 인지전략의 사용이나 자기조절을 나타내는 자기조절적 학습전략이 높다는 것을 알 수 있었다 과학관련태도 중 과학적 태도가 긍정적일수록 과학문제발견력중 창의성관련 범주인 정교성이 높았다. 그러나, 과학관련태도의 다른 하위범주와 과학문제해결력의 다른 하위범주간에는 유의미한 상관을 보이지 않았다. 또한 자기조절적 학습전략은 자기조절적 학습전략이 높을수록 정교성이 높았으며 과학의 탐구동기와 탐구수준과도 정적 관계를 갖고 있음이 확인되었다. 둘째, 과학문제발전력의 구조모형을 검증한 결과, 과학탐구관련 과학문제발견력 구조모형 1과 창의성 관련 과학문제발견력 구조모형 2의 분석결과가 모두 학습자의 정의적 요인인 과학관련태도가 직접적으로 과학문제발견력에 영향을 미치는 것이 아니라 자아효능감과 학습에 대한 내재적 가치의 인식을 갖는 동기요인과 자기조절적 학습전략의 사용을 매개로 하여 과학문제발견력에 영향을 미친다는 것이 확인되었다.