• Journal of the Korean Society of Earth Science Education
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• v.12 no.1
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• pp.109-118
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• 2019

The purpose of this study was to investigate the effects of experience as a science experiment assistant teacher on the science instruction anxiety and the science teaching efficacy beliefs of elementary pre-service teachers in a small scale school. For this study, 21 elementary pre-service teachers were selected and then they worked as science experiment assistant teachers in small scale schools for about 10 months. They were tested the science instruction anxiety and the science teaching efficacy beliefs in before and after. After analyzing the tests results, some pre-service teachers were interviewed. The results of this study are as follows. The experiences as science experiment assistant teachers positively influenced on reducing the science instruction anxiety to elementary pre-service teachers. The experiences also had positive effects on reducing both state anxiety and trait anxiety, which are the sub-factors of science instruction anxiety. In addition, the science teaching efficacy beliefs and its sub-factor, the self-efficacy in science teaching, had positive impacts, but the experiences did not have a positive impact on the outcome expectancy. The effects of the experience as a science experiment assistant teacher were different according to the personal experiences and cognitions of pre-service teachers.

• Journal of The Korean Association For Science Education
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• v.41 no.2
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• pp.133-144
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• 2021

The purpose of this study is to explore the teaching and learning experiences to improve the positive experiences about science (PES) of scientifically-gifted elementary school students. For this study, 36 students in grades 5~6 at a gifted science education institutes in Seoul were selected and conducted pre-test and post-test for 'Test for Indicators of Positive Experiences about Science (TIPES).' After the weekly science classes of the institutions were over, individual in-depth interviews were also conducted with some students to explore the teaching and learning experiences for improving their PES. The analysis of the results reveals that the science classes for scientifically-gifted students have been shown to improve PES of scientifically-gifted elementary school students. The teaching and learning experiences to improve their PES included eight teaching and learning experiences that appeared in general elementary school students of previous study such as 'practice-centered exploratory activities,' 'student-led class,' 'positive and professional feedback,' 'construction of knowledge through exploration,' 'class considering student's interest and aptitude,' 'use of materials related to real life,' 'smooth communication and collaboration in group activities,' and 'appropriate difficulty in learning content.' There were also six teaching and learning experiences that newly emerged from science-gifted students: 'Learning experience through the strategies for improving scientific creativity,' 'inquiry experience as a little scientist,' 'advanced or accelerated learning experience,' 'learning experience with excellent students,' 'experience helping other students,' and 'experience with high or low achievement'. Based on these results, the practical implications for improving the student's PES are suggested.

• 한국지구과학회:학술대회논문집
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• 2005.02a
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• pp.99-100
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• 2005

• The Korean Publising Journal, Monthly
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• s.192
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• pp.14-14
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• 1996

• Journal of Science Education
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• v.36 no.1
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• pp.84-93
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• 2012

We have studied possibilities of Peer Instruction(PI) to train in-service science teachers in elementary and middle schools through both degree of conceptual changes and investigating responses to questionaries. 169 teachers were attended and the subject for training was about light propagation to teach scientific conception about a pin hole camera. 6 conceptests were developed. Degree of conceptual changes was analyzed from results obtained from 24 elementary and 32 middle school teachers among them. On the other hand, answers to questionaries were obtained from 135. Relatively high gain near to about 0.7 in conceptual changes was obtained even though their initial levels were quite low. Interesting point is that elementary teachers have higher initial level and larger gain than middle school teachers. Teachers have very much enjoyed and showed strong support to PI for helping conceptual change, and willing to use PI to their own class. Also they conceived dealing concept in teacher training is very important and evaluated PI very positively for teacher training.

• Journal of the Korean Chemical Society
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• v.68 no.4
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• pp.205-220
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• 2024

This study aims to explore characteristics of pedagogical reasoning and action of beginning science teachers that naturally and spontaneously occurs in a professional learning community. Three novice middle school science teachers who majored chemistry education in A college of education, passed the examination for selecting secondary school chemistry teachers, and had a common goal of designing 8^th grade science lesson plan voluntarily created a professional learning community and had weekly meetings over a year. Main data sources included transcribed audio-recording of 11 meetings of three science teachers in a professional learning community. Data was analyzed using Shulman's pedagogical reasoning model that includes comprehension, transformation, instruction, evaluation, reflection, and new comprehension to identify characteristics and features of pedagogical reasoning in a professional learning community. Data analysis revealed that pedagogical reasoning in a professional learning community comprises not only preparation, representations, instructional selections, and adaptation but also evaluation, reflection, and new comprehension in transformation stage. Reflection in transformation stage leads teachers to be actively engaged in discussion and get new comprehension on each sub-component(preparation, representations, instructional selections, adaptation, and evaluation) of transformation stage.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.7
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• pp.125-132
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• 2018

The purpose of this study is to examined the relationship between child care teachers' science teaching efficacy and children's scientific attitude. Then, using the instructional creativity as a parameter to increase the quality of teacher-children interaction, we examined how the teacher-children relationship changed. In this study, 303 child care center teachers in Suwon, Gyeeonggi were surveyed. To analyze the data, structural equation modeling and Sobel-test were performed using SPSS 23.0 and AMOS 23.0. The analysis results showed that child care center teachers' science teaching efficacy had positive effects on the teachers' creativity and the children's scientific attitude. Furthermore, the creativity of child care center teachers had a positive effect on children's scientific attitude. The result of the Sobel-test revealed that child care center teachers's creativity played a mediating role between teachers' science teaching efficacy and children's scientific attitude and acted as a key variable in promoting children's scientific attitude. In conclusion, it has been identified that the creativity of the infant teacher's teaching is an important change that has a positive effect on the child's scientific attitude. Therefore, if education is provided to enhance the creativity of the professor when the infant teacher is working as a science professor at the same time, it can contribute to the quality of the child's scientific attitude.

• Journal of Science Education
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• v.34 no.2
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• pp.396-404
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• 2010

This study aimed to investigate a perception of teachers engaged in special education for scientifically gifted regarding nature of science and identify attitudes toward teaching nature of science. The sample of this study consists of 122 science teachers who are teaching or taught students attending gifted classes of any primary school in Korea and any gifted education center of every District Office of Education. We made a partial amendment of a VOSE that was developed by Chen(2006) and then used. We tested their perception and attitudes in regard to nature of science. In terms of nature of science, we devide it into 7 sub-areas to analyse. For attitudes toward teaching nature of science, we investigate and analyse following 5 sub-areas; tentativeness of scientific knowledge, nature of observation, scientific methods, theories and laws and subjectivity and objectivity. The result showed that the generally teachers have a desirable recognitions about a nature of science. For attitudes toward teaching nature of science, the teachers showed that they have positive attitudes. However between degrees of teachers' recognition about a nature of science and attitudes toward teaching nature of science showed a low correlation. To increase their understanding of nature of science and develop attitudes toward teaching nature of science, there should be more training time for the teachers and training contents also should be changed. In addition, we hope that this study contribute to develop contents and direction of training for the teachers as a basic reference.

• The Science & Technology
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• v.29 no.5 s.324
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• pp.76-77
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• 1996

염소소독을 한 수돗물에는 THM이란 오염물질이 잔류하게 되는데 간독성을 유발하는 이 HTM이 신장에도 독성을 일으킨다는 사실을 밝혀낸 서울대 약학과 정진호교수가 이달의 과학자로 뽑혔다. 최근 혈소판도 화학물질에 의해 독성반응을 일으킨다는 사실을 세계 최초로 밝혀낸 정교수는 혈소판과 혈관의 상호작용에 대한 연구로 분주한 나날을 보내고 있다.

• The Science & Technology
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• no.9 s.412
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• pp.24-25
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• 2003

'이 달의 과학자'에 안치득 소장/ 포항공대 총장에 박찬모 교수 선임/ WHO총장 취임 이종욱 박사/ '닮고 싶고 되고 싶은 과학기술인'에 손욱 장회익 박성래 유명희 이영욱 오세정 이상엽 변대규 이재웅 씨/ 2003년 특허기술상 김수용 · 장인섭 씨/ 美 원자력학회 학술상 장순흥 교수