• Journal of the Korean School Mathematics Society
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• v.11 no.3
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• pp.337-362
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• 2008

Nowadays the education of Mathematics is more important than any other courses in the school. But the most students have felt the difficulty and uncomfortableness in studying Mathematics, especially the geometry course. Moreover teachers also consider that the teaching of geometry is the hardest part of Mathematics. Therefore we suggest an effective method of teaching the geometry course for the middle school students. We provide the activity papers which contain mathematics problems based on the practical life of students. And we analyze the effects of the activity papers using the questionnaire.

• Korean Journal of Heritage: History & Science
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• v.43 no.3
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• pp.180-207
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• 2010

Technological innovations in the 21th Century greatly change the society. The radical advance in computer science brought changes and increased efficiency into society in general. The field of archaeology is also highly influenced and attempts to improve previous manually conducted field survey and research have been actively made. In order to supplement incomplete data set from archaeological excavation, the ways to use computer have been highly explored. GIS is one of them. However, use of GIS has been limited to document locations and to produce distribution map of features using digital map. There are no proper guides to employ GIS for academic research, so that it is hard for beginners to learn how to make use of GIS. In this paper, functions of GIS are introduced even for beginners, including definition of GIS and its archaeological use. It is also explained how to get DEM from digital map to do spatial pattern analysis. Various GIS special pattern analyses using DEM and 3D simulation are presented, as well.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.10
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• pp.6698-6707
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• 2015

The purpose of this study is to investigate relationships among career identity, satisfaction in major, and adjustment to college life for students who major in food and nutrition that is complex and has diversity of carrier and to serve as a guideline for career counselling and college life. After reliability and validity of the data collected were verified using IBM SPSS Statistics 22, difference in variables according to characteristics of students was examined using independent t-test, ANOVA, and chi-square test. The results showed that there was a positive correlation among career identity, satisfaction in major, and adjustment to college life and students who had prior knowledge of their major showed a higher level of career identity, satisfaction in major and adjustment to college life compared to those who did not. Therefore, it is suggested that guidance on Department of Food and Nutrition should be provided to students before they decide on their major for their increased satisfaction in major, smooth adjustment to college life, and career decision. With this data, we recognize the gravity of psychological factor and carrer consciousness may provide base data to practical use of student life and carrer guidance.

• Communications of Mathematical Education
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• v.26 no.1
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• pp.137-154
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• 2012

Approximation' is one of central conceptions in calculus. A basic conception for explaining 'approximation' is 'tangent', and 'tangent' is a 'line' with special condition. In this study, we will study pedagogically these mathematical knowledge on the ground of a viewpoint on the teaching of secondary geometry, and in connection with these we will suggest the teaching program and the chief end for the probable teaching. For this, we will examine point, line, circle, straight line, tangent line, approximation, and drive meaningfully mathematical knowledge for algebraic operation through the process translating from the above into analytic geometry. And we will construct the stream line of mathematical knowledge for approximation from a view of modern mathematics. This study help mathematics teachers to promote the pedagogical content knowledge, and to provide the basis for development of teaching model guiding the mathematical knowledge. Moreover, this study help students to recognize that mathematics is a systematic discipline and school mathematics are activities constructed under a fixed purpose.

• Journal of The Korean Association For Science Education
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• v.40 no.4
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• pp.359-374
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• 2020

This study is a complex type consisting of survey study and self-study. The former investigated elementary teachers' epistemological beliefs on convergence knowledge and teaching. As a representative of the result of survey study I, as a teacher as well as a researcher, was the participant of the self-study, which investigated my epistemological belief on convergence knowledge and teaching and my execution of convergent science teaching based on family resemblance of mathematics, science, and physical education. A set of open-ended written questionnaires was administered to 28 elementary teachers. Participating teachers considered convergent teaching as discipline-using or multi-disciplinary teaching. They also have epistemological beliefs in which they conceived convergence knowledge as aggregation of diverse disciplinary knowledge and students could get it through their own problem solving processes. As a teacher and researcher I have similar epistemological belief as the other teachers. During the self-study, I tried to apply convergence knowledge system based on the family resemblance analysis among math, science, and PE to my teaching. Inter-disciplinary approach to convergence teaching was not easy for me to conduct. Mathematical units, ratio and rate were linked to science concept of velocity so that it was effective to converge two disciplines. Moreover PE offered specific context where the concepts of math and science were connected convergently so that PE facilitated inter-disciplinary convergent teaching. The gaps between my epistemological belief and inter-disciplinary convergence knowledge based on family resemblance and the cases of how to bridge the gap by my experience were discussed.

• Korean Journal of Comparative Education
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• v.24 no.3
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• pp.227-244
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• 2014

This study is to explore and compare the main research area of national and international universities, figure out the differences of the research trends depending on national and international universities, and suggest which area Korea universities could focus on and head to. The study is conducted on the fields of 'Communication and Media' in humanities and 'Electrical Engineering' in engineering for the cases of 10 national and international universities. The data is based on the 3 years journals published between 2009 and 2011 by 10 universities, and analyzed using network analysis. The data is processed with three steps and visualized using Ucinet, Gephi, Netdraw program. These result show, in case of 'Communication and Media', the focus of the universities in Korea mainly on the classical research fields with only a few new research area comparing with international universities. In case of 'Electrical Engineering', national and international universities covers various areas, from classic ones to emerging ones. But the specific research areas are different. These results suggest the research areas which ares the universities in Korea will pursue in near future.

• Bulletin of Food Technology
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• v.14 no.4
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• pp.52-59
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• 2001

미국 내에서 첨단 농업과 관련한 학문 연구 및 기술개발 활동이 가장 활발하며, 농산물의 수확 후 관리기술 등의 분야에서 세계적으로 명성이 높은 University of California, Davis에서 지난 2000년 10월 9일부터 200 1년 10월 7일까지 1년간 해외연수를 수행하였다. 연수 지도교수였던 식품공학과(Food Sci. & Technol.) 및 생물.농공학과(Bio. & Agric. Engin.) 소속의 Dr. John M. Krochta는 천연소재의 환경친화성 생고분자 (biopolymer ) 필름/ 피막의 제조 기술과 특성 평가에 관한 연구분야에서 이미 수많은 탁월한 연구성과를 축적한 저명 과학자로서, 실제 연수를 수행한 식품공학과 내의 Packaging & Biopolymer Film Lab.에서는 최근 10년 동안 주로 유가공 부산물인 유청 단백질(whey proteins )을 원료로 한 생고분자 필름/ 피막을 개발하여 각종 신선 농산물 및 가공식품에 대한 적용 가능성 연구를 수행하면서 다수의 연구논문과 저서, 특허를 배출하고 있었다. 필자는 연수기간동안 whey protein films의 산소 차단특성을 활용하여 기존 합성 고분자 재질의 산소 차단재를 대체할 수 있는 새로운 생고분자 포장재로서 whey protein coating의 제조 및 성능 평가에 관한 연구를 수행한바, 이에 간략히 그 내용과 결과를 소개하고자 한다.

• Communications of Mathematical Education
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• v.18 no.1 s.18
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• pp.123-136
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• 2004

수학이라는 학문 자체가 몇 가지 정의와 공리로부터 논리 법칙을 이용하여 명제나 정의를 유도하고 확장하는 공리적인 성격을 지니고 있기 때문에 그러한 논리 전개의 진위 여부를 판별해주는 증명은 수학에서 아주 중요하다. 특히 중학교 2학년 학생들은 정의와 성질을 이용한 증명을 다루는데 정의와 성질의 역할을 제대로 구분하지 못할 경우 증명 자체가 어려워진다. 학생들을 가르치다 보면 정의와 성질을 구분하지 못하고 증명과정에서 정의와 성질이 어떤 역할을 하는지 제대로 알지 못하는 경우가 종종 있다. 본 연구에서는 정의와 성질의 구분 실태를 조사하고, 정의와 성질의 구분에 어려움이 있는 학생들을 대상으로 증명과정에서 정의와 성질의 역할에 대하여 학생들이 겪는 어려움과 처치과정의 사례 연구를 통하여 분석함으로써 증명 교육의 바람직한 방안을 모색하고자 한다.

• Journal of the Korean Geographical Society
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• v.34 no.3
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• pp.281-293
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• 1999

이 연구는 개념 및 개념학습의 의미와 가치를 평가해 보고, 기존의 지리교육 기본 개념에 대한 논의를 정리하여 현장 교사들의 기본 개념 인식과 비교한 후, 향후의 지리교육 내용 구성의 방향을 모색해 보았다. 지리교육의 개념은 지리적 현상의 작동 과정을 이해하는데 도움을 주는 개괄적인 관념으로서 관련 지식들을 인지구조 속에 붙들어 매어주는 역할을 한다. 현장교사들이 가장 중요하다고 인식하고 있는 기본개념은 인간-자연관계, 입지, 지역, 지도화, 지역적 차이, 문화 등이며, 이는 전통지역지리학에서 강조되어 온 개념들이다. 반면에 지역적 결합, 공간 및 공간관계, 장소, 지구사회, 이동 등의 개념은 교사들이 잘 이해하지 못하고 있는 개념으로 밝혀졌다. 이러한 분석과 관련하여 주의를 기울여야 할 점은 지리학과 지리교육의 기본개념을 무차별적으로 혼용해서는 안 된다는 점이다. 학문적 성과와 교육적 성과는 다른 것이며, 이에 맞춰 지리교육의 교육적 효과를 높일 수 있는 구체적인 하위개념들이 개발되어야 할 것이다.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.1063-1064
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• 2023

인류는 주가를 과학적으로 예측하기 위해 수많은 학문적 노력을 기울여왔지만, 아직까지도 풀지 못한 난제로 남아 있다. 이에 본 연구에서는 깊은 수학적 원리에 기반하고 알파고 등에서 인간을 능가하는 성능을 보여준 강화학습 기술을 주식 트레이딩에 적용한 RLTA 모델을 제안하고, 실험을 통해 그 유용성을 입증하였다.