• Proceedings of the Korean Society of Computer Information Conference
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• 2016.07a
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• pp.173-175
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• 2016

본 논문에서는 로봇 프로그래밍 교육을 통하여 예비 교사의 로봇에 대한 태도 변화를 살펴보았다. 로봇 프로그래밍 교육의 예비 교사의 로봇에 대한 태도에 미치는 영향을 살펴보기 위하여, ICT 교육을 받는 예비 교사와 프로그래밍 교육을 받는 예비 교사와 로봇에 대한 태도를 비교하였다. 비교를 통하여, ICT 교육을 받은 예비 교사와 프로그래밍 교육을 받은 예비 교사는 로봇에 대한 태도 변화가 없는 것을 확인할 수 있었다. 하지만 로봇 프로그래밍 교육을 받은 예비 교사들은 로봇에 대한 태도가 통계적으로 유의미한 변화가 나타났다. 또한, 예비 교사에게서 나타난 로봇에 대한 태도 변화는 로봇에 대한 부정적인 태도가 긍정적으로 바뀌는 데 영향을 준 것을 확인할 수 있었다. 이러한 결과를 통하여 로봇 프로그래밍 교육이 예비 교사의 로봇에 대한 태도를 긍정적으로 바꾸는 데 영향을 준다는 결론을 얻을 수 있었다.

• The Journal of the Korea Contents Association
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• v.16 no.10
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• pp.364-372
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• 2016

The purpose of this study was to investigate preservice mathematics teachers' perceptions for mathematics digital textbook. To do this, we provided a questionnaire to 52 preservice mathematics teachers and analysed the questionnaires. The questionnaire was investigated using 5 point scale. The results of this study can be summarized as follows. First, the preservice mathematics teachers' perception on effectiveness of mathematics digital textbook was positive. Second, the preservice mathematics teachers' perception on interaction of mathematics digital textbook was normal. Third, the preservice mathematics teachers' perception on interest of mathematics digital textbook was positive. Fourth, the preservice mathematics teachers' perception on students' health of mathematics digital textbook was normal. Fifth, the preservice mathematics teachers' perception on class-management of mathematics digital textbook was normal. Sixth, some preservice mathematics responded that mathematics digital textbook was efficient to teach a function or a geometry, others responded that paper textbook was more efficient to teach a mathematics.

• The Journal of the Convergence on Culture Technology
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• v.9 no.4
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• pp.31-38
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• 2023

This study aimed to find out how gratitude disposition and creative personality affect teacher professionalism in 384 pre-service early childhood teachers. Data were analyzed using descriptive statics, Pearson correlation, multiple regression, and Sobel test for mediating effect. The results of the study were as follows: First, the average value was high in the order of teaching professionalism, gratitude disposition, and creative personality of pre-service early childhood teachers. Second, there was a positive corelation between pre-service early childhood teachers' gratitude disposition and creative personality, gratitude disposition and teaching professionalism. Third, as a result of examining the relative effects of gratitude disposition and creative personality on teaching professionalism, persistance was found to be the strongest predictor among creative personality.

• Journal for History of Mathematics
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• v.25 no.1
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• pp.89-105
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• 2012

This study analyzed the lesson analysis reports and survey of pre-service teachers who have practiced the microteaching in order to identify the reflection of mathematics pre-service teachers. The professors who are teaching pre-service teachers need to propose the examples of an instructional model that can induce the opened reaction and the effective usage of time through interesting topics. In addition, pre-service teachers who have practiced the first microteaching have shown a lot of reflection more than expected. Therefore, to improve the quality of lectures, it is important for pre-service teachers to have experiences of microteaching and reflection.

• Journal of the Korean Society of Earth Science Education
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• v.14 no.1
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• pp.69-79
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• 2021

The purpose of this study was to compare what meanings of earth science pre-service teachers and primary pre-service teachers about science books and reading through science disciplinary reading and how their thoughts on science education are reflected in the science disciplinary reading process. For the study, 24 third-year students majoring in earth science education and 25 second-year students majoring in primary education were selected as subjects for the study at a teacher training college located in the central part of Korea. As a result of the study, first, earth science pre-service teachers used disciplinary reading a lot to acquire knowledge of science content, but primary pre-service teachers used it for the purpose of using it in class, scientific interest, and curiosity solution. Second, earth science pre-service teachers and primary pre-service teachers showed differences in their thinking in using science related books for science education. While earth science pre-service teachers rarely described the use of science books in their classes, primary pre-service teachers actively described science classes. Third, from the perspective of science disciplinary reading, primary pre-service teachers were more actively emphasizing the meaning of disciplinary reading compared to earth science pre-service teachers. In light of the research results that the reading activity in science has a lot of effect, it is thought that a wide range of research on science disciplinary reading should be conducted as a teaching strategy in school field classes.

• Proceedings of the KIEE Conference
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• 2007.07a
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• pp.800-801
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• 2007

본 연구는 지역별 전력수급을 고려한 발전기 보수 계획 수립에 관한 Hybrid Particle Swarm Optimization알고리즘(HPSO) 접근법을 제시하였다. 전체 계통의 예비력 확보에 초점이 맞춰진 기존의 연구에 지역별 예비력을 고려한 제약조건을 추가하였다. 본 연구의 목적함수로는 결정적 신뢰도 지수인 공급 예비율 분산값의 최소화(공급예비율 평활화)를 사용하였으며, IEEE RTS(1996) 계통에서의 사례연구를 수행하여 기존의 PSO알고리즘의 경우와의 비교분석을 통해 제안된 방법의 우수성을 보였다.

• Journal of the Korean School Mathematics Society
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• v.20 no.3
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• pp.303-323
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• 2017

This is a multiple-case study of how preservice secondary mathematics teachers teach a particular mathematics using a technological tool. In a performance interview, the preservice teachers demonstrated how they would teach a specific mathematical topic using Geometer's Sketchpad. The results of this study showed that the preservice teachers designed diverse types of lesson plans and implemented different pedagogical and technological techniques in their teaching demonstrations. The findings suggest that preservice teachers' pedagogical content knowledge is an important factor in the integration of technology into their mathematics teaching. Thus, mathematics teacher educators should help preservice teachers gain a robust pedagogical content knowledge in order to effectively teach mathematics with technological tools.

• Journal of the Korean School Mathematics Society
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• v.17 no.3
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• pp.321-335
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• 2014

This study aimed to investigate beliefs of secondary pre-service teachers in mathematics. In particular, conceptions of teaching and learning were examined, For the purpose of this study, using an instrument, Teaching and Learning Conceptions Questionnaire, developed by Chan & Elliot(2004), a survey was conducted for 86 secondary mathematics pre-service teachers in Incheon area. The results showed that the mathematics pre-service teachers strongly agreed with the constructivist perspectives. In addition, compared to the juniors, the seniors responded more positive in the questions relative to the traditionalist view and the male students agreed more with the traditional conceptions, as comparing to the female students in this study. This study had limitations on the extent of the research site and participant. However, it would provide foundational information about pre-service teachers for teacher educators.

• Journal of the Korean Society of Earth Science Education
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• v.13 no.2
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• pp.134-146
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• 2020

The purpose of this study is to examine how elementary pre-service teachers have a perception of 'science'. Especially, this study used photo-narrative method to analysis pre-service teachers' perception of 'science'. Photo-narrative is a way of describing what a study participant wants to say by taking a picture. Participants were 66 elementary pre-service teachers. The results of this study were as follows: First, elementary pre-service teachers used many words such as people, life, everyday as well as scientific terms such as phenomena and principles to explain science. Secondly, the pictures used by elementary pre-service teachers to explain science included household goods, natural phenomena, advanced devices, and living things. Third, elementary pre-service teachers explained science with knowledge of science, knowledge, convenience, and nature of science. As a result of this study, it was found that elementary pre-service teachers recognized that science is closely related to life and that it is necessary for learning. The results of this study can contribute not only to curriculum composition and curriculum content of elementary and middle school science education but also to curriculum development for teacher training.

• Korean Journal of Construction Engineering and Management
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• v.8 no.2
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• pp.84-92
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• 2007

To reduce uncertainties and make rational plans, the presumption of contingency against a failure of projects and an occurrence of unpredictable risks is important with accurate estimations as the work progressing. Therefore, if the presumption of contingency reflecting uncertainties carries out at a decision making point of time, be able to prepare for risks. The purpose of this paper is to present a management process of contingency through the performance analysis of project. In the cost planning phase, this study offers a process which is predictable contingency and predicts the range of fluctuation of the cost, laking an advantage of EVM in construction phase. With reflecting the results from this procedure, this study presents a process, rationally manageable contingency.