• Hwankyungkyoyuk
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• v.13 no.2
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• pp.114-126
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• 2000

The purpose of this study is to identify the theory of inquiry and to suggest an example of teaching/learning strategy through inquiry for effective environmental education. This study was based on the review of literature in the area of background of inquiry, inquiry in school subjects-social science, science, and environment and activities for inquiry. The teaching/learning strategy which was developed in this study included several inquiry activities focusing on recent social issue. And it can be used in environmental class.

• The Pure and Applied Mathematics
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• v.18 no.2
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• pp.157-160
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• 2011

Main purpose of this note is to construct an example of a continuous one-to-one function f : ${\mathbb{Q}}^*{\rightarrow}{\mathbb{R}}$ whose inverse is nowhere continuous, and to show that the completeness is not necessary for the continuous inverse theorem.

• East Asian mathematical journal
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• v.28 no.3
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• pp.347-352
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• 2012

In this paper, we introduce techniques for computations of the automorphism group of special doamins, for example the Kohn-Nirenberg domain, Fornaess domain and Cartan Hartogs domain.

• Proceedings of the Korean Society for Environmental Edudation Conference
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• 2005.12a
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• pp.70-73
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• 2005

• Journal of Engineering Education Research
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• v.19 no.5
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• pp.57-64
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• 2016

This study is about interdisciplinary education model of using Davis Guggenheim's documentary film on global warming which is a big concern in climate change issues, An Inconvenient Truth. It based on Al Gore's slide speech. Through a course student analyzed the cause and phenomenon of global warming resulted from increase of $CO_2$ by using fossil fuel and its environmental science effects-heat wave, desertification, tornado, hurricane, sea level rise caused by melting glaciers, destroying ecosystem like habitat degradation of wild animals, for example polar bear, extreme cold wave caused by change of ocean currents- of global warming. After, student discussed of efforts to prevent global warming. This educational model is appropriate for lower grade student of environmental engineering and also available for converged majors or general education class.

• Research in Mathematical Education
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• v.9 no.2 s.22
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• pp.153-173
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• 2005

Recently Bianshi problems, math isomorphic problems by changing the conditions, conclusions or deduction process of the three components of the example problem, are consistently identified as an important element in Chinese math education, characteristics in Chinese math education culture and form a hot point in China, 5 main factors related to reasons why is regarded as CULTURE characteristics in Chinese math education are discussed: (a) Exam goal (b) the curriculum objectives (c) traditional mode and conception, (d) Chinese situation, (e) Chinese math tradition.

• Philosophy of Education
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• no.49
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• pp.235-270
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• 2013

The aim of this study is to make clear the significance of art education for solving problem in elementary and secondary school. These days, our students have so many negative problems in school and society, for example, school violence, group teasing, group outcasts, arrogate teacher's authority, school collapse, dehumanization get soused excessive and such like. We must support to make humanization through a normal art education and art class. Art, music, physical and literature education is a good methods for human education and mental therapy. The best art education is enlightening the children's imagination and curiosity. To enlighten. in art class at the school, teachers must think about enlightening the children's imagination and curiosity. Aesthetic experience includes creative activities and appreciative activities for human formation. The school must expend effort to increase the art class in each week, because students can change positively in aesthetic experience and aesthetic environment.

• Journal of Korean Association for Spatial Structures
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• v.15 no.2
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• pp.87-94
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• 2015

This paper aimed at modeling a fine triangular grid for network dome by using Harmony Search (HS) algorithm. For this purpose, an optimization process to find a fine regular triangular mesh on the curved surface was proposed and the analysis program was developed. An objective function was consist of areas and edge's length of each triangular and its standard deviations, and design variables were subject to the upper and lower boundary which was calculated on the nodal connectivity. Triangular network dome model, which was initially consist of randomly irregular triangular mesh, was selected for the target example and the numerical result was analyzed in accordance with the HS parameters. From the analysis results of adopted model, the fitness function has been converged and the optimized triangular grid could be obtained from the initially distorted network dome example.

• Journal of Korean Association for Spatial Structures
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• v.12 no.4
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• pp.47-56
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• 2012

This paper describes the structural design and optimization of sinusoidally corrugated web girder by using EUROCODE (EN 1993-1-5). The optimum design methodology and characteristics of the optimal cross-section are discussed. We investigate a shear buckling and the concerned standards for corrugated web and explain the equations to obtain a critical stress according to buckling type. In order to perform optimization, we consider an objective function as minimum weight of the girder and use the constraint functions as slenderness ratio and stresses of flanges as well as corrugated web and deflection. Genetic Algorithm is adopted to search a global optimum solution for this mathematical model. For numerical example, the clamped girder under the concentrated load is considered, while the optimum cross-sectional area and design variables are analyzed. From the results of the adopted example, the optimum design program of the sinusoidally corrugated web girder is able to find the suitable solution which satisfied a condition subject to constraint functions. The optimum design shows the tendency to decrease the cross-sectional area with the yielding strength increase and increase the areas with load increase. Moreover, the corrugated web thickness shows a stable increase concerning the load.

• The Mathematical Education
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• v.38 no.2
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• pp.95-103
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• 1999

Russia is a country which is interested in mathematics education for gifted students for a long time. Some aspect of education for the gifted students in Russia(for example, mathematics curriculum, contents and activities of study, and selection of students in Russian physio-mathematics school) has already been studied. The purpose of this work was to introduce system of the mathematics education by correspondence for gifted students in Russia. In order to achieve this goal, we analyzed Russian literatures and articles published by the various physio-mathematics correspondence schools for gifted students. In this article, we gave some characteristics of the physio-mathematics correspondence schools for gifted students: various types of mathematics education by correspondence, curriculum, practical materials for mathematics education by correspondence.