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Fibred Riemannian Spaces with Generic Fabres
Ki, U-Hang,Kim, Byung-Hak 경북대학교 과학교육연구소 1985 科學敎育硏究誌 Vol.9 No.-
K. Yano, M.Konishi, Y.Tashiro 等에 의하여 1960年代 後半부터 集中 硏究되기 시작한 fibred space의 미분기하학적 考察은 最近 Y. Tashiro, Ⅰ.-B. Kim등의 국내외 학자들에 의해서 fibred Sasakian space의 問題가 풀리고 있으며 더욱이 fibre 상에서 structure tensor 와 次元과의 관계에 의하여 곡면론적 해석을 시도하고 있다. 이런 관점에서 본 論文에서는 fibred Sasakian space가 generic구조를 가질 때 projectable의 문제와 기본 tensor, curvature condition들을 硏究하였다.
일반형(一般型) fibre를 가지는 fibred 리만 공간(空間)
기우항 ( U-hang Ki ),김병학 ( Byung Hak Kim ) 경북대학교 과학교육연구소 1985 科學敎育硏究誌 Vol.9 No.-
K .Yano, M . Konishi, Y.Tashiro 等에 의하여 1960年代 後半부터 集中 硏究되기 시작한 fibred space의 미분기하학적 考察은 最近 Y .Tashiro, I.-B. Kim등의 국내의 학자들에 의해서 fibred Sasakian space의 問題가 풀리고 있으며 더욱이 fibre 상에서 structure tensor와 次元과의 관계에 의하여 곡면론적 해석을 시도하고 있다. 이런 관점에서 본 論文에서는 fibred Sasakian space가 generic 구조를 가질 때 pro-jectable의 문제가 기본 tensor, curvature condition들을 硏究하였다.
奇宇恒,權炳奎,朴德圭,이병교,鄭遠佑,金裕漢 경북대학교 과학교육연구소 1984 科學敎育硏究誌 Vol.8 No.-
The purpose of this study is to achieve the individualized inquiring learning which is centered on students by improving the method of the evaluation of the inquiry learning in the science class in a multi-student class. Therefore the author made the table of specification for scientific achievements of the abilities of inquiring by analyzing the abilities of inquiring according to the content of science and five basic experiments of each unit inthe first grade of of middle school, ant then made the paper and pencil and performance test items for the evaluation of the abilities of inquiring. The paper and pencil test was taken after the experimental and observational class, and performance test was taken in the way of the students' self evaluation, peer evaluation and Tester evaluation. The results are as follows: 1) In operation of the inquiry learning by two experiments, performance test items and 13 the paper and pencil test items made for evaluation of the abilities of inquiring could be applied usefully. 2) Correlation coefficient between paper and pencil test and performance test is .362 and it is very low. Therefore it is desirable that performance test be used for the evaluation for the abilities of inquiring which cannot be evaluated by paper and pencil test. 3) In evaluation of the abilities of inquiring by performance test on five basic experiments, it is more desirable that 'the use of microscope' is presented in the way of peer evaluation or peer and Tester evaluation, 'the observation on epidermis of onion cell' in the way of peer evaluation, and self-evaluation. 4) Skill of the abilities of inquiring in experimental and observational class can be evaluated correctly through performance test.
기우항,김영호,이윤종,정원우,김민숙 경북대학교 과학교육연구소 1997 科學敎育硏究誌 Vol.21 No.-
The purpose of this study is to compare and analyze the eight current mathematics textbooks in order to them effectively in the course of instruction according to the result. Basically the study has been carried out to compare and analyze what is the difference between the current curriculum and the last one, and the development of the teaching procedure, the difference of the quality and contents in the eight kind of text books.
林在圭,奇宇恒,金演哲,金正遠 慶北大學校 師範大學 1981 敎育硏究誌 Vol.23 No.-
Owing to the curriculum's revision of primary and high school in the beginning of 1970, several elementary concepts of modern mathematics were introduced as new teaching contents. So the efficient ways to reeducate the present teachers and to publish a desirable textbook have been badly needed. In this paper, we investigate the present situations of administration and teachers of mathematics department in the city and rural area. On the basis of these results, we find out the better ways of mathematics education from the following points of view: 1. The general administrations of mathematics department. 2. The reeducation and education for mathematics teachers. 3. Mathematics textbooks. 4. Evaluations and tests.
數學敎育의 現況 分析과 改善 方案(Ⅰ) : 圖形의 變換의 指導內容 分析 The Analysis of Contents about Transformation of Figure
林在圭,奇宇恒,鄭長春,金海龍 경북대학교 과학교육연구소 1980 科學敎育硏究誌 Vol.4 No.-
Some concepts of modern mathematics give rise to the new contents of school mathematics in accordance with the modernization movement of mathematics education. The trasformation of the figures is one of contents. In the present paper, to find out the effective teaching methods for the transformations of figures, we study the followings; (1) the structures of various transformations (2) analizing the curriculum and the mathematics textbooks (3) organizing the development of contents by logical arguments (4) pointing out difficult aspects of contents which can be found in the educating place.
현행 중학교 과학 실험·실습교육에 대한 교사들의 견해와 개선방안
이윤종,기우항,김영호,정원우,양승영,강용희,안병호,임성규,윤일희,김중욱,강동진 경북대학교 과학교육연구소 1996 科學敎育硏究誌 Vol.20 No.-
The status of facilities, management of the experiment, practices, and Science education teaching method in middle school have been investigated. The present status and reasonable management of middle school science education have been grasped from the questionaires. The results are as follows : The reasonable management for expeiments and practices of science education were scanty in the middle school around the urban and rural schools owing to the shortage of facilities and equipments, crowded class, excessive classes, work for teachers, excessive contents of present textbook and insufficience of administrative support etc. The current teaching method of middle school science has emphasized knowledge. This fact does not satisfy the objective of learning due to lack of teaching method. Desirable directions for the improvement of present status of middle school science education were proposed in this paper.
정원우,이윤종,기우항,김영호,양승영,강용희,안병호,임성규,윤일희,김중욱,윤성효,강동진 경북대학교 과학교육연구소 1997 科學敎育硏究誌 Vol.21 No.-
The purpose of this study is to investigate the status of the experimental and practical education in high school earth. The present status and reasonable management of the experimental and practical education in high school earth science have been grasped from the questionaires. To do this, eighty eight earth science teachers in Korea are administered questionaires. The frequency of the experimental and practical items in the seven kind of earth science text books were investigated. The problems and the reasonable management for experimental and practical education were proposed in this paper.
Ki, U-Hang,Kim, Doo-Hyun,KIm, Soon Ja 慶北大學校 1980 論文集 Vol.30 No.-
偶數次元 槪 Tachibana 多樣體 M^(2n+2)의 準正規(f, g, u, v, λ)構造를 갖는 餘次元 2인 部分多樣體 M이 準正規일 때, 正規가 되는 條件을 調査하여(定理 4.1參照), 다음의 結果를 얻었다. 定理 槪 Tachibana 多樣體 M^(2n+2)의 準正規(f, g, u, v, λ)構造를 갖는 餘次元 2인 2n次元의 完備이고, 局所 irreducible인 部分多樣體 M에 대해서 M^(2n+2)의 曲率變換이 M에 接하고, 測度 零이 아닌 點에서 函數 λ(1-λ^2_)≠0이 되고, 더욱이 第二基本形式에 의해서 定義되는 一次變換 h, k가 構造 tensor f와 可變이면, M은 偶數次元 全側地的 部分多樣體 또는 2n 次元 球面이다.