• Proceedings of the Korean Nuclear Society Conference
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• 2002.05a
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• pp.150-150
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• 2002

• Journal of the Korean School Mathematics Society
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• v.6 no.2
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• pp.39-53
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• 2003

We study the dynamic geometry software suitable for the Internet Environment. First, we look into the necessity of dynamic geometry software and compare the functions and the features of commercial softwares, GSP, Cabri and Cinderella. Secondly, we introduce the process of development and the structure of the new software DRC(Digital Ruler and Compass) designed by authors and discuss the learning program with DRC and Internet, and view the upgrade of the software in the future.

• Proceedings of the Korean Nuclear Society Conference
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• 2004.10a
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• pp.517-518
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• 2004

• Proceedings of the Korea Society of Mathematical Education Conference
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• 1996.06a
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• pp.216-221
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• 1996

• Proceedings of the Korea Society of Mathematical Education Conference
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• 2006.10a
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• pp.189-213
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• 2006

• Proceedings of the Korea Society of Mathematical Education Conference
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• 2007.06a
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• pp.107-134
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• 2007

• Communications of Mathematical Education
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• v.18 no.2 s.19
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• pp.383-410
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• 2004

DGS(dynamic Geometry System)와 WBI(Web Based Instruction)를 고찰해보고, 동적 기하 프로그램의 대표적인 프로그램인 GSP, Cabri, Cinderella를 이용하여 WBI를 제작해 보고 웹 환경 하에서 세 프로그램의 효율성을 비교 ${\cdot}$ 분석하였으며, 이들 세 프로그램의 장점을 정리하여 웹 환경에서 동적 기하 프로그램의 개선 방향을 제시하였다.

• Journal of the Korean School Mathematics Society
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• v.15 no.1
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• pp.183-197
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• 2012

Geometry having long history of mathematics have important role for thinking power and creativity progress in middle school. The regular polygon included in plane geometry was mainly taught convex regular polygon in elementary school and middle school. In this study, we investigated the denotation's extension of regular polygon by mathematical basic knowledge included in school curriculum. For this research, first, school mathematical knowledge about regular polygon was analyzed. And then, basic direction of research was established for inquiry. Second, based on this analysis inductive inquiry activity was performed with research using geometry software(Cabri Geometry II). Through this study the development of enriched learning material and showing the direction of geometry research is expected.

• Nuclear Engineering and Technology
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• v.53 no.12
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• pp.3930-3943
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• 2021

To improve the capability of the SAS4A code, which simulates the initiating phase of core disruptive accidents for MOX-fueled Sodium-cooled Fast Reactors (SFRs), the authors have investigated in detail the physical phenomena under unprotected loss-of-flow (ULOF) conditions in a previous paper (Kawada and Suzuki, 2020) [1]. As the conclusion of the last article, fuel stub motion, in which the residual fuel pellets would move toward the core central region after fuel pin disruption, was identified as one of the key phenomena to be appropriately simulated for the initiating phase of ULOF. In the present paper, based on the analysis of the experimental data, the behaviors related to the stub motion were evaluated and quantified by the author from scratch. A simple model describing fuel stub motion, which was not modeled in the previous SAS4A code, was newly proposed. The applicability of the proposed model was validated through a series of analyses for the CABRI experiments, by which the stub motion would be represented with reasonable conservativeness for the reactivity evaluation of disrupted core.

• Journal of the Korean School Mathematics Society
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• v.5 no.2
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• pp.101-109
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• 2002

Among interactive dynamic geometry softwares, Cinderella has some merits on the accuracy of algorithms and compatibility with internet. In this paper we compare dynamic geometry softwares such as GSP, Cabri II, Cinderella briefly and we design a web based interactive learning materials using the exercise editor of Cinderella and some Java applets, and we propose a web based interactive teaching and learning model in which achievement test can be given by the clickings on the help icon.