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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
East Asian mathematical journal
Journal Basic Information
Journal DOI :
Youngnam Mathematical Society
Editor in Chief :
Volume & Issues
Volume 28, Issue 5 - Nov 2012
Volume 28, Issue 4 - Aug 2012
Volume 28, Issue 3 - May 2012
Volume 28, Issue 2 - Feb 2012
Volume 28, Issue 1 - Jan 2012
Selecting the target year
한국과 싱가포르의 6학년 도형영역 교과서 비교 분석 및 수학수업의 적용사례
Choi, Chang-Woo ; Chun, Mi-Hyang ;
East Asian mathematical journal , volume 28, issue 2, 2012, Pages 109~133
DOI : 10.7858/eamj.2012.28.2.109
In this research, I selected a Singapore elementary mathematics textbook which substantially reflects Singapore curriculum, and compared it with Korean one to understand how they differ in the contents system of the curriculum focused on the contents of the geometry and measurement strand, and analyzed their common points and different points intensively with textbooks for sixth-grade students. Also, I translated a chapter of the textbook, 'Mathematics in Action'. That chapter was about circumference and the area of the circle which is related to the shapes part. Then, I taught it to the experimental group to compare their achievement and the change of reaction to studying the shape-related parts with those of the control group. The results are the followings. First, when we analyze the contents of shape-related part of the textbooks for sixth-grade students of both countries, Singaporean textbook contains more contents that are introduced for the first time, which implies that it is more desirable to teach new concepts of shapes when students are in their higher grades. Second, as for the way they develop the activity of each chapter, Korean textbook sticks to a uniform way, while the Singapore textbook uses various ways for different subjects and grades. In addition, when they organize the contents of the textbook, they emphasize the importance of student's activity and lead students with various methods by suggesting several questions and situations.
연산자로서의 유리수 체계의 구성에 관한 연구
Chung, Young-Woo ; Kim, Boo-Yoon ;
East Asian mathematical journal , volume 28, issue 2, 2012, Pages 135~158
DOI : 10.7858/eamj.2012.28.2.135
The ideals of the rings of integers are used to induce rational number system as operators(=group homomorphisms). We modify this inducing method to be effective in teaching rational numbers in secondary school. Indeed, this modification provides a nice model for explaining the equality property to define addition and multiplication of rational numbers. Also this will give some explicit ideas for students to understand the concept of 'field' efficiently comparing with the integer number system.
실수계의 공리를 이용한 지수 a
의 학습과 지도
Lee, Byung-Soo ;
East Asian mathematical journal , volume 28, issue 2, 2012, Pages 159~172
DOI : 10.7858/eamj.2012.28.2.159
In all Mathematics I Textbooks(Kim, S. H., 2010; Kim, H. K., 2010; Yang, S. K., 2010; Woo, M. H., 2010; Woo, J. H., 2010; You, H. C., 2010; Youn, J. H., 2010; Lee, K. S., 2010; Lee, D. W., 2010; Lee, M. K., 2010; Lee, J. Y., 2010; Jung, S. K., 2010; Choi, Y. J., 2010; Huang, S. K., 2010; Huang, S. W., 2010) in high schools in Korea these days, it is written and taught that for a positive real number
is defined as
have common prime factors. For that situation, the author shows his opinion that the definition is not well-defined and
must be defined as
is defined, based on the field axiom of the real number system including rational number system and natural number system. And he shows that the following laws of exponents for reals:
hold by the completeness axiom of the real number system and the laws of exponents for natural numbers, integers, rational numbers and real numbers are logically equivalent.
문제 해결 과정에서 규칙을 찾는 초등학생들의 사고 과정 분석
Shin, Su-Jin ; Kang, Jeong-Gi ; Roh, Eun-Hwan ;
East Asian mathematical journal , volume 28, issue 2, 2012, Pages 173~195
DOI : 10.7858/eamj.2012.28.2.173
The purpose of this study is to help for an in-depth understanding of their thinking process by observing and analyzing the response found by two elementary school students, Through this study, the following findings could be obtained. First, two students have a tendency trying to solve the complex situation at first. Second, we could know that it is an important factor in discovering the pattern to predict it. Third, we could know that the activity of reconstructing the data meaningfully is an important factor in discovering the pattern. Fourth, it is an important factor in finding the pattern to work organically the activity of predicting it with the activity of reconstructing the data meaningfully. We hope that this study offers the help for an in-depth understanding of students's thinking process.
삼각형의 변들에 대한 등식을 탐구하는 한 방법에 대한 연구
Gang, In-Ju ; Han, In-Ki ;
East Asian mathematical journal , volume 28, issue 2, 2012, Pages 197~213
DOI : 10.7858/eamj.2012.28.2.197
In this paper we study Soltan & Meidman's method that is able to be used in mathematical discovery. We analyze Soltan & Meidman's book "Tozdestva i Neravenstva v Treugolike" that is published in Moldova Republic. In this work we formulate Soltan & Meidman's method related with discovery of triangle's various equalities, and use the method to discovery mathematical equalities. As a result we suggest some new mathematical equalities related with triangle's sides and its proof.
관찰 및 추천에 의한 영재교육대상자 선발방식 분석 - 2011학년도 대학부설 과학영재교육원 입학전형을 중심으로 -
Kwon, Ern-Gun ; Jo, In-Seo ;
East Asian mathematical journal , volume 28, issue 2, 2012, Pages 215~232
DOI : 10.7858/eamj.2012.28.2.215
The methods of selection through observations and recommendations were introduced in the process of recruiting new students for the science education institutes for the gifted attached to 25 universities recently. This paper itemized the methods of screening through observations and recommendations. This paper also analyzed the problems with the methods and attempted to create plans for their improvement. The methods of selection through observations and recommendations led to the positive results that students' usual activities and attitudes in the classroom were reflected on the evaluation and that the cost of their private lessons was also reduced. However, the methods showed a few problems that need to be corrected. We point out problems occurring with examining their documents for submission and interviews. It was not easy to grade candidates' gifts, creativity, potential and development within the contents of the documents and the limited time of conducting interviews. On the plans for the developments of the implemented methods of selection through observations and recommendations, we have several suggestions. The chances for teachers' in-service training of learning the methods of selection through observations and recommendations need to be expanded. The interview needs to be enhanced and to have the same weight as the document screening. To secure the continuity of the education for the gifted, the clear guidelines from the Ministry of Education, Science, Technology along with the cooperation of the education institutes for the gifted are essential.
수학 수업의 일부 국면에 나타나는 수업의 실제에 대한 일 논의
Kim, Jin-Ho ; Lee, Jae-Ki ;
East Asian mathematical journal , volume 28, issue 2, 2012, Pages 233~249
DOI : 10.7858/eamj.2012.28.2.233
Some discussions are made about practices which take places in some aspects of instructions from the viewpoints of traditional and reform based instruction. This kind of discussion is needed to be done, because there is no evidences to show that reform based instruction is mainly implemented among teachers even through reform based instruction has continued to be stressed since the 7th national curriculum was released. Some suggestions was made for consideration of further deep discussions based on the practices discussed earlier.
수준별 수업에서의 중학교 수학 익힘책의 활용 실태
Bae, Sung-Soo ; Kim, Young-Ok ;
East Asian mathematical journal , volume 28, issue 2, 2012, Pages 251~264
DOI : 10.7858/eamj.2012.28.2.251
The revised mathematics education curriculum in 2007 decided to introduce mathematics workbooks to the textbook system, which were supplemental textbooks to support mathematics teachers' teaching and students' learning in level-based classroom. This study is to find the field status whether the middle school mathematics workbooks are currently used in the school to be in line with the original intention and purpose and to discuss the improvement direction and effective utilization idea which modification and amendment shall be made for the effective utilization in the field. To achieve the goal of this study, the inquiry survey was made from 75 middle school teachers of the 1st, 2nd and 3rd grade in the middle schools where the moving classing for each level(or class in each level)has been performed with provision of the questionnaire sheet for the understanding of the teachers for the utilization status of the mathematics workbook to solve such study task.