• 한국수학교육학회지시리즈A:수학교육
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• 제41권1호
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• pp.35-44
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• 2002

The purpose of this study is to estimate teachers'conceptions of mathematics through the conception on compositions of mathematical knowledge, the conception on structure of mathematical knowledge, the conception on status of mathematical knowledge, the conception on mathematical activity, and the conception of mathematics learning. This study reached the following conclusions: Most of teachers has more internal viewpoint than external viewpoint on the compositions, structures and status of mathematical knowledge, mathematical activity and mathematics learning.

• 한국과학교육학회지
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• 제28권3호
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• pp.187-196
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• 2008

In this study, a survey was conducted of students in grades 7 through 12, student teachers enrolled in their senior year at teachers' colleges, and science teachers. Subjects were surveyed on their conceptions of phenomenon related with dissolution, saturation, and extraction. The models and analogies used by student teachers and science teachers to explain dissolution were sought. The highest percentage of students thought of dissolution as a phenomenon in which particles broke into the spaces between other particles. The models or analogies used by the highest percentage of science teachers were similar. They generally conceived of dissolution phenomenon through what we call the 'space conception'. A conception of dissolution phenomenon as 'hydration through attraction of solvent and solute' was held by more student teachers than science teachers; there were some differences, however, according to their academic background. The percentage of teachers professing this view decreased when they attempted to explain the process of extraction of matter in a solution after other matter had dissolved or after the solution was cooled, indicating that the 'hydration' conception was not firmly established in the student teachers' cognition. Therefore, it can be inferred that the conceptions of dissolution as 'hydration' were transformed into the conceptions of dissolution as 'space' after teaching dissolution phenomenon as practicing teachers. This finding should be considered in teacher-training courses.

• 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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• 제30권4호
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• pp.524-534
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• 2011

This study is to ascertain pre-service teachers' conceptions for the causes of season change, to verify their conceptional mistakes, and to analyze how their conceptions are changed while presenting Disproof-Experiment Model where they cannot explain it with their current conceptions. 32 junior students of Education universities, pre-service elementary teachers, located at the middle of Korea participated in this research including two interviews and one experiment activity. As a result of analyzing of the data, the pre-service teachers held diverse conceptions for the causes of season change such as to mistake the phenomena, the distance between the earth and the sun, the tilting of the rotation axis and the revolving around the sun while changing the tilting direction of the rotation axis as the cause. After applying Disproof-Experiment Model designed by the researchers in order to change the current conception above, the conception changes of the pre-service teachers were investigated. Diverse Disproof-Experiment Models were used differently depending on the pre-service teachers' conceptions. As a result of the application of Disproof-Experiment Model, 26 out of 28 pre-service teachers were changed to scientific conceptions. It was determined that in order to modify pre-service teachers' conceptions, designing and presenting the Disproof-Experiment Model appropriate to their conceptions are effective after analyzing their conceptions. In case of conceptions that pre-service teachers feel difficult, it was established that unraveling experiment models prescribed after investigating the preconceptions and identifying the misconceptions are important.

• 한국초등과학교육학회지:초등과학교육
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• 제33권2호
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• pp.401-414
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• 2014

The purpose of this study is to investigate the elementary preservice teachers' conceptions about 'plastics' focusing on non-polar property from a National University of Education. For the study, the views about plastics, relative shapes of a water droplet on plastic or glass material, and relative shapes of water surface in the plastic or glass measuring cylinder were surveyed from the preservice teachers. And the responses were analyzed based on the patterns. The results from the study are as follows: First, most preservice teachers were well aware of the plastic products which are used in daily life. Second, the responses concerning the reason why plastics can be used commonly were divided into 2 categories with 14 sub-level groups. However relatively few preservice teachers mentioned regarding 'chemical stability' and 'conductivity', which are associated with the plastics' non-polar property. Third, it was found that 50 participants (30.1%) had 'Scientific conception (Sc)', 38 (22.9%) had 'Partial-scientific conception (Ps)', 66 (39.8%) had 'Misconception (Mc)', and 12 (7.2%) had 'No conception (Nc)' on the subject of the relative shapes of a water droplet. Fourth, the distribution patterns and the ratio of the preservice teachers' conception on the survey question 3 concerning the relative shapes of water surface were quite similar to those of the survey question 2. So it was concluded that overall understanding level of the preservice teachers was pretty low on the subjects of the relative polarities of the plastic, glass, and water as well as their interactions. Fifth, the distribution percentile of 'Sc'/'Ps'/'Mc'/'Nc' was not related with the gender but highly correlated with preservice teachers' academic field and their science subjects taken in high school. Based on the results from the study, some educational guidelines were suggested.

• 한국초등과학교육학회지:초등과학교육
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• 제22권2호
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• pp.138-148
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• 2003

This study was to analyze how elementary school science textbooks explain dissolution and to examine the patterns of elementary school teachers' conceptions on dissolution and the teaching practices on dissolution of elementary school teachers. According to the result of the textbook analysis, the textbooks based on the 7th curriculum didn't explain dissolution very differently from those based on the 6th curriculum. The contents dealing with dissolution in the textbooks of 7th curriculum became difficult gradually as the year went up, but the connected organization of the contents made students learn it easily. For example, in order to learn dissolution introduced first in the 3rd year 2nd semester textbook, students would tell soluble substance in water from insoluble substance in water as they put powdered substance in water. In the 5th year 1st semester textbook students were supposed to acquire the knowledge related to dissolution through the designed activities such as comparing solubility produced by different solvents and defining a solvent, a solute, dissolution, and a solution. In addition, teachers' guide for 5th year 1st semester textbook elucidated the principle of dissolution using attraction concept that was scientific. The result of the survey on teachers showed that 90% of elementary school teachers understood the dissolution of salt in water just as millet particles' filling the space between bean particles and they responded that they demonstrated millet particles' filling the space between been particles when they taught the dissolution of salt in water. When it comes to teachers who had the right idea on dissolution as the attraction conception, understanding was one thing and teaching was another, because they often instructed dissolution as the space conception in the real teaching.

• 대한지구과학교육학회지
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• 제1권1호
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• pp.111-118
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• 2008

This study is aimed at analyzing earth conception the nine pre service teachers who are majoring in earth science education and classifying a special feature from the ontological categories. Open ended questionnaires and semi structured interviews which meant to contribute to identifying ontological categories of concepts involving study area were designed. Pre service teachers' ontological category about earth conception most showed to dynamic and proto process. In the results show that many pre service teachers recognize simply the conception to a material, a condition and a conversion of the state changing. Most of the pre service teachers show their intermediate understanding level about the earth inner construction according to the analyzed results of the drawing tasks and interviews. The main alternative conceptions show them through a definition of the plate, a wording definition between lithosphere and asthenosphere, a feature of the plate boundary, a heat convection in the earth inner, the earth inner heat source, the earth inner structure, a physical feature of the mantle.

• 아동학회지
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• 제24권6호
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• pp.81-94
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• 2003

This study explored the relationship between kindergarten teachers' self-concept and job satisfaction. The subjects were 345 public and private kindergarten teachers. Instruments were 2 questionnaires: The Tools for Measuring kindergarten Teachers' Self-concept, and the Survey of Kindergarten Teacher Job Satisfaction. Results showed that kindergarten teachers' self-concept was positively correlated with job satisfaction. The most important sub-factor influencing job satisfaction was self-concept regarding professional and social position. These results imply that teacher education program or organizational climate improving teachers' positive self-concept would be needed.

• 과학교육연구지
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• 제35권2호
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• pp.173-192
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• 2011

이 연구는 빛의 직진에 관한 교사들의 개념이 어떠한지 살펴보고, 나타난 여러 대안개념들을 개선하기 위해 필요한 적절한 학습모듈의 개발에 주목한 것으로서 올바른 빛의 직진 개념 형성을 위한 실험장치와 work sheet의 고안 및 활용의 효과성을 살펴보고 이에 따른 교육적 시사점을 얻고자 이루어졌다. 개발된 실험장치와 work sheet는 현직 교사들로 하여금 올바른 과학 개념을 가질 수 있도록 하는지 알기 위해 초 중등학교 교사 75명(초등 8명, 중등 67명)을 대상으로 적용수업이 이루어졌고 적용수업 전 후에 교사들의 개념을 알아보기 위하여 사전검사와 사후검사가 각각 이루어졌다. 결과의 분석은 사전검사 및 사후검사 무응답 등의 이유로 중등교사 5명을 제외한 70명의 교사들에 대하여 이루어졌다. 실험장치를 이용한 적용수업 전, 대다수의 교사들이 가진 대안 개념으로 실험장치의 바닥판에 빛이 비쳐 밝게 보이는 모양 자체를 빛의 진행경로로 생각하는 것으로 드러났으나 실험장치를 이용한 적용수업 이후 바닥판에 빛이 비친 모양을 빛의 진행경로로 생각하는 유형의 수가 크게 감소하였다. 아울러 수업 전, 빛의 진행경로의 출발점을 잘못 그린 것과는 반대로 거의 모든 교사가 광원인 전구로부터 시작하여 빛의 진행경로를 그리는 올바른 개념으로 변화하였다.

• 한국과학교육학회지
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• 제24권3호
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• pp.544-555
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• 2004

이 연구에서는 고등학교 학생들, 화학교사들, 그리고 예비 교사들을 대상으로 하여 다니엘 전지에서의 염다리 역할에 대한 개념 유형을 설문과 면담을 통하여 알아보았다. 또한 교사와 학생들이 가지는 개념의 어려움에 대한 원인을 알아보기 위하여 고등학교 화학 II 교과서의 서술내용에 대한 분석도 병행하였다. 예비 교사들의 생각은 교사교육 프로그램의 문제점을 점검하기 위하여 조사되었다. 연구 결과, 교사들은 염다리를 통한 이온의 이동에 관한 관점은 가지고 있었으나,염다리가 닫힌 회로를 완성하는 역할을 한다는 사실에 대한 관점을 가지고 있지 않은 것으로 나타났다. 이러한 경향은 학생들과 예비교사의 경우에도 유사한 것으로 나타났다. 교사들과 학생들이 염다리에 대한 정확한 개념을 형성하는데 어려움을 겪는 원인은 교과서의 불충분하고 다양한 설명 때문일 가능성이 있었다.