• 영재교육연구
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• 제5권2호
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• pp.1-15
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• 1995

The latest researchs show that students have their own preconceptions about scientific phenomena or theory before they learn about it in school. The preconceptions exert a great influence on the teaching and learning science. The purpose of this study is to find out the effect of intelligence and attitude to science on elementary school students were sampled from 4th and 6th grade. Data were obtained by IQ test and the questionnaires on scientific conception and attitude toward science. The result was analyzed by t-test, Correlation and ANOVA in the statistical packages SPSS/PC+. The major findings of this study are as follows : 1. The mean score of scientific conception of elementary school students was 12.89. The mean score of attitude to science was 247.29. The mean score of intelligence was 109.93. 2. The correlation coefficient between scientific conception and intelligence (r=.5098)was relatively high(p<.001). The correlation coefficient between attitude to science and scientific conception(r=.2364) was low(p<.001). 3. Significant difference on science conception was found among grade levels(p<.001). Significant difference on science conception was not found between sex (p>.05). 4. The subjects were divided into 4 groups by intelligence and attitude toward science. These 4 groups show the significant difference (p<.01) in the scientific conception. The groups of high of high intelligence showed high scientific conception.

• 한국지구과학회지
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• 제35권5호
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• pp.385-398
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• 2014

This study investigated students' alternative conceptions of plate boundaries and their conception revision according to the pattern of students' reasoning. Participants were twenty-two 10th grade high school students. All participants were asked to draw the three types of plate boundaries and to explain their drawings. Nine students participated in the reasoning activity. To this end, a semi-structured interview was conducted during which key questions were asked for the students to individually answer. The key questions used in the reasoning activity were created, by utilizing questions used in the previous studies. The findings revealed that the alternative conceptions of plate boundaries were classified into three levels based on established criteria. Students who attempted a variety of reasoning strategies such as causal reasoning, using an analogy, abductive reasoning, data reconstruction and concept combination, revised their alternative conception to a scientific conception after the reasoning activity. On the other hand, some students could not revise their alternative conceptions because they only conducted an incomplete reasoning strategy. The study also found that they were unable to use other reasoning strategies, either.

• 기본간호학회지
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• 제25권1호
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• pp.1-10
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• 2018

Purpose: The purpose of this study was to investigate effects of leadership, critical thinking disposition, and professional self-conception of nurse on happiness in nursing students. Methods: Data ware collected from 160 nursing students from March to May 2015, using self reported questionnaire. Descriptive statistics, t-test, ANOVA, correlation analysis and multiple regression were used to analyze the collected data. Results: Happiness in nursing students was correlated with leadership (r=.68, p<.001), critical thinking disposition (r=.36, p<.001) and professional self-conception of nurse (r=.57, p<.001). Factors significantly influencing happiness in nursing students were leadership (${\beta}=.48$, p<.001), professional self-conception of nurse (${\beta}=.17$, p=.032) and life satisfaction (${\beta}=.18$, p=.003), with a total explanatory power of 53.0%. Conclusion: The results of this study showed that leadership, critical thinking disposition, and professional self-conception of nurse should be promoted to increase happiness of nursing students.

• 한국과학교육학회지
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• 제21권4호
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• pp.658-667
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• 2001

본 연구에서는 학습자의 인지적 정의적 변인, 변칙 사례에 의한 인지 갈등, 개념 변화 사이의 관계에 대해 조사하였다. 배경 지식, 장의존성 독립성 학습 전략, 논리적 사고력, 목표 지향, 선개념 및 능력에 대한 자아효능감, 통제 신념 등을 조사하였고, 선개념 검사, 변칙 사례에 대한 반응 검사, 직후 개념 및 개념 파지 검사를 실시하였다. 학습자의 인지적 정의적 변인과 변칙 사례에 의한 인지 갈등 사이에는 유의미한 상관이 없었다. 분자 운동에 대한 배경 지식, 장의존성, 독립성, 학습 전략은 학생들의 직후 개념 및 개념 파지와 유의미한 상관이 있었으며, 논리적 사고력과 직후 개념의 상관이 유의미하였다. 중다 회귀 분석 결과, 학습 전략이 학생들의 직후 개념과 개념 파지를 유의미하게 예측하였다. 정의적 변인의 경우, 능력에 대한 자아효능감은 직후 개념 및 개념 파지와, 목표지향은 직후 개념과 유의미한 상관이 있었다. 능력에 대한 자아효능감은 직후 개념과 개념 파지에 대한 유의미한 예언 변인이었으며, 목표 지향은 직후 개념에 대한 유의미한 예측 변인이었다.

• 한국초등과학교육학회지:초등과학교육
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• 제34권4호
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• pp.419-433
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• 2015

Analogical reasoning is a central component of human cognition and contributes to scientific discovery and to develop science education. In this study, we investigated the process features of lower elementary school students' analogical reasoning to explain mixture concept. The subjects are 24 lower elementary students. And the research design includes three phases instruction to investigate the features of students' self generated analogy. Phase 1 is the introduction of analogy in which student learn to use analogy. Phase 2 is a POE class about mixture conception. Piaget and Inhelder studied the conception of mixing among children in relation to cognitive development. In phase 2, we taught the student with Piaget and Inhelder's the experiment and observed the features of learning process about mixture conception. Phase 3 is students' generation of analogy (self generated analogy) for the experienced phenomena in phase 2. We analyzed the students' responses through the three phases in the view of Gentner's Structure Mapping Theory. The results showed that many lower elementary school students even before formal operation stage understood the mixture conception and made well their self generated analogy to explain the mixture conception in spite of the difficulty of making self generated analogy.

• 대한화학회지
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• 제60권1호
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• pp.48-58
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• 2016

이 연구는 중학생들의 전해질과 이온 개념에서 나타나는 개념 변화 유형을 조사한 것이다. 자료수집은 9학년 학생들을 대상으로 전해질과 이온 수업 전후의 개념을 조사하고, 9명의 학생들을 대상으로 반구조화된 면담을 통해 이루어졌다. 면담내용을 모두 녹음하고 전사하였으며, 그리고 학생들의 응답을 유형별로 분류하였다. 연구 결과는 다음과 같다. 첫째, 이온의 개념 변화 유형은 단순한 개념에서 정교화된 개념, 불완전한 개념에서 과학적 개념, 오개념에서 혼동된 개념, 오개념에서 오개념 등의 4가지로 분류되었다. 많은 학생들이 수업 전후 이온 개념 형성에 어려움을 겪고 있으며, 원자와 원자의 구성입자를 정확하게 구별하지 못하고 있었다. 둘째, 전해질 개념 변화 유형은 부분적 과학 개념에서 정교화된 개념, 오개념에서 부분적 오개념, 불완전한 개념에서 불완전한 개념, 오개념에서 오개념 등의 4가지로 분류되었다. 또한 다수의 학생들은 전해질과 비전해질의 차이점을 구분하는 것을 어려워하였다. 셋째, 연구 단원인 전해질과 이온은 교육과정에 따라 9학년 2학기에 편성되어 있고, 진학을 위한 내신성적 산출 등 바쁜 시기의 학습으로 학생들이 입자 개념 형성에 더욱 곤란을 겪고 있음을 알 수 있었다. 연구 결과를 바탕으로 학생들이 입자의 과학적 개념을 변화시킬 수 있는 교수전략을 제시하였다.

• 한국초등과학교육학회지:초등과학교육
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• 제22권1호
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• pp.15-28
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• 2003

The purpose of this study was to explore the relationships between the concept of heat and that of temperature for elementary students. Eight multiple choice type questions with explanation of reasons for selection were developed based on previous researches and the analysis of science curriculum for elementary students. The students of 9, 10, 11 years(n=292) were selected from two elementary schools in Taegu City. The responses of students' multiple choice and their explanations were analysed in each items χ² test used for the relationships between types of heat and temperature conceptions Half of elementary student could discriminate the two terms of heat and temperature, majority of them thought that heat is likely to be hot and temperature is the quantity of heat, which is not based on scientific conception. Elementary students thinkings about heat could be classified with material type of heat and molecular kinematics type. Material type of heat were more popular than with molecular kinematics type, although the latter is increased. Majority of students answered correctly in qualitative questions of mixing of hot and cold water, but about only one third of them answers in quantitative questions. Subtraction of cold temperature from hot temperature was the most popular explanation, even though one-quarter of students summed up the two temperature in quantitative situation of mixing hot and cold waters. Those who thought heat as the molecular kinetic responded more correctly in most difficult questions than those who as the material. Therefore, we concluded that the types of heat conceptions affected the concept formation of temperature.

• 한국초등과학교육학회지:초등과학교육
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• 제29권4호
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• pp.474-483
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• 2010

In this study, we investigated preservice elementary school teachers' awareness of students' misconceptions about several science topics, and the variables influencing their awareness. Seniors (N=106) from an university of education were asked to predict elementary school students' misconceptions on science topics such as phase changes and dissolution. Their conceptions about teaching and learning were also measured. The results indicated that the preservice teachers' predictions about the kinds and/or the ratios of students' misconceptions were different from those reported in previous studies. The low level preservice teachers in terms of the degrees of possessing traditional conception about teaching and learning predicted more students' common misconceptions. The degrees of preservice teachers' constructivist conception about teaching and learning and their major, however, did not significantly influence the numbers of common misconceptions predicted.

• 한국초등과학교육학회지:초등과학교육
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• 제24권2호
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• pp.130-137
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• 2005

Elementary preservice teachers' understanding about the insect molt and metamorphosis was examined. Data were collected through the paper-pencil test of 448 junior students at a National University of Education. The instrument used was developed by Son(2003) and modified for the test. The results are as follows: First, Only 3.1$\%$ of students had a scientific concept on the molt periods in the insect life cycle. Students had an alternative conception that molt occurs either only in the larval period (29.9$\%$) or only in the period from pupa to adult (22.3$\%$). The percentage of the students thinking that molt occurs in the period from larva to pupa was low. Second, 98$\%$ of students stated that molt has to do with the larval growth, but 39.1$\%$ of students had an alternative conception that molt occurs after the larval growth at each instar. 25.1$\%$ had a conception that molt is related with the larval growth, but did not show any further understanding. Third, most students understood the correct meaning of metamorphosis. 34..2$\%$ of students had an alternative conception that metamorphosis occurs only in the period changing from pupa to adult, and only a few thought that it occurs in the period from larva to pupa. 24.8$\%$ of students had a scientific concept on the periods in which metamorphosis occurs. Fourth, some students understood the hatching process as molt in the sense that the egg shell is taken off (21.0$\%$), and as metamorphosis in terms of the appearance change from egg to larva (25.0$\%$). Fifth, 35.5$\%$ of students selected bees as an insect of incomplete metamorphosis, and 35.3$\%$ responded 'I have no idea', showing that they had poor understanding about the insect life cycle.

• 한국수학교육학회지시리즈A:수학교육
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• 제50권2호
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• pp.165-184
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• 2011

The purpose of this study is to detect the possibility of the development of conception of a graph and the formula with the absolute value through context questions, and also to investigate the effectiveness of the each step of the mathematical modeling activities in helping students to have the conception. The research was conducted to analyze the process of development of the mathematical conception by applying the mathematical modeling activities two times to subjects of two academic high school students in the first grade. The results of the study are as follows: Firstly, the subjects were able to comprehend the geometric conception of the absolute value and to make the graph and the formula with the sign of the absolute value by utilizing the condition of the question. Secondly, the researcher set five steps of the intentional mathematical model in order to arouse the effective mathematical notion and each step performed a role in guiding the subjects through the mathematical thinking process in consecutive order; consequently, it was efficacious in developing the conception.