• Communications of Mathematical Education
• /
• v.5
• /
• pp.230-243
• /
• 1997

• Journal of Elementary Mathematics Education in Korea
• /
• v.11 no.1
• /
• pp.23-42
• /
• 2007

Learners who have taken learner-centered instruction is expected to construct conceptually mathematical knowledge which is. If so, they can have some ability to solve problems they are confronted with in the first time. To know this, First graders who have been in learner-centered instruction during 1 school year was given 7+52+186 which usually appears in the national curriculum for 3rd grade. According to the results, most of them have constructed the logic necessary to solve the given problem to them, and actually solve it. From this, it can be concluded that first, even though learners are 1st graders they can construct mathematical knowledge abstractly, second, they can apply it to the new problem, and third consequently they can got a good score in a achievement test.

• The Journal of Society for e-Business Studies
• /
• v.9 no.3
• /
• pp.113-128
• /
• 2004

Up to the present, most of the previous works, related to the alignment of organizations, have been focused on the alignment between business and information technology. Also these works have been done with single element, e.g., view rather than with overall elements such as view, scope, and perspective for enterprise-wide integrated alignment. Meanwhile, an enterprise architecture is a blueprint that represents the structure of components of organizations and their interrelationships. Nowadays, many organizations attempt to make enterprise-wide alignment of business and information technology based on enterprise architecture. Unfortunately, the enterprise-wide alignment is still in a stage of not only conceptual level but also abstract level. Hence, this paper proposes a structured enterprise-wide alignment model to overcome the limitations of existing alignment models. We survey the existing works and propose the conceptual, the logical, and the physical models for enterprise-wide alignment which includes 3-dimensional elements such view, scope, and perspective based on enterprise architecture. Finally, we have shown that the proposed model is better than existing ones through comparing the characteristics of models.

• Journal of The Korean Association For Science Education
• /
• v.22 no.3
• /
• pp.508-516
• /
• 2002

This study investigated the influences of group composition in cooperative computer-assisted instruction (CAI) upon students' conceptual understandings, application abilities, learning motivations, and the perceptions of involvement. Seventh graders (N=97) were selected from a co-ed middle school in Seoul, and taught about 'motion of molecules' for 5 class hours. In the two treatment groups with cooperative CAI strategy, homogeneous and heterogeneous small groups were organized by the previous science achievement. Traditional instructions were administered to the comparison group. Two-way ANCOVA results revealed that the scores of the conception test for the treatment groups were significantly higher than those for the comparison group. However, there was no difference between the homogeneous and the heterogeneous groups. The scores of the three groups did not differ significantly in the application test and the learning motivation test. However, the perceptions of involvement for the treatment groups were more positive than those for the comparison group.

• Proceedings of the Korean Society for Information Management Conference
• /
• 2005.08a
• /
• pp.393-400
• /
• 2005

기관 리포지토리에 대한 개념적 평가모형을 개발하기 위하여 국내외 기관 리포지토리에 대한 문헌연구를 통하여 평가요소를 도출하였으며, 도출된 평가 요소들이 도서관 업무 현장에서의 적용가능성과 타당성을 검증하기 위하여 전국 7개 대학도서관을 대상으로 사례연구를 실시하였다. 연구결과, 4개 평가영역과 29개 평가지표로 구성된 평가모형을 개발하였다.

• Journal of Educational Research in Mathematics
• /
• v.16 no.2
• /
• pp.157-177
• /
• 2006

The concepts of ratio and proportion do not develop in isolation. Rather, they are part of the individual's multiplicative conceptual field, which includes other concepts such as multiplication, division, and rational numbers. The current study attempted to clarify the beginning of this development process. One fourth student, Kyungsu, was encourage to schematize his trial-and-error-based method, which was effective in solving so-called missing-value tasks. This study describes several advancements Kyungsu made during the teaching experiment and analyzes the challenges Kyungsu faced in attempting to schematize his method. Finally, the mathematical knowledge Kyungsu needed to further develop his ratio and proportion concepts is identified. The findings provide additional support for the view that the development of ratio and proportion concepts is embedded within the development of the multiplicative conceptual field.

• Journal of Science Education
• /
• v.39 no.2
• /
• pp.209-220
• /
• 2015

Science has an essentially integrated character as a discipline that explores the natural phenomena. And the integrated science education is required to achieve the goals of science education to forster scientific literacy of all students. In this respect, we defined the basic concepts and principles that can penetrate the natural phenomena as an integrated concepts in this study, and organized the contents of integrated science curriculum around them. Integrated concept centered curriculum was intended for the 10th grade students and the breadth and depth of learning concepts were represented by presenting the achievement level of the learning concepts. Contents organization of integrated science curriculum presented in this study was meant to provide a new perspectives to the revision of the national integrated science curriculum that is currently in progress.

• Journal of Acupuncture Research
• /
• v.24 no.1
• /
• pp.39-47
• /
• 2007

목적 : 사암오행침법의 다양한 변형처방과 그 구성 원리에 대한 연구가 여러 편 있지만 아직 처방구성 형태를 완전하게 분석하거나 그러한 구성을 가능하게 하는 기본 이론에 대해서는 충분히 밝혀지지 않은 상태이다. 본 논문은 사암오행침법의 처방구성 기본이론과 형태에 대해 고찰하고자 한다. 방법 : 본 연구는 사암도인침법에 있는 240개의 처방을 사암이 사용한 문장과 용어인 생왕휴수사(生旺休囚死)와 상생자가보(相生者可補) 상극자필사(相克者必瀉)를 중심으로 분석하여 고찰 하였다 결론 : 1. 오행의 초기개념은 별의 움직임이나 계절의 변화, 관직이름 등과 관련되어 있으며, 이것은 하나의 요소라기보다는 변화과정을 나누어 설명하고자 하는 개념이었으며, 또한 오행은 절대적 우위를 지닌 관계가 아니었고 상황에 따라 지배를 받기도 하고, 지배를 하기도 하는 관계로 보았다. 2. 왕상휴수사(旺相休囚死)는 오행의 또 다른 개념이며 왕상휴(旺相休)는 가족의 개념이고 수사(囚死)는 적의 개념으로, 왕상휴(旺相休)는 오행의 상생관계로, 수사(囚死)는 상극관계로 여겨진다. 3. 소위 정격(正格)에 해당하는 처방은 240개의 처방 중 119개가 해당되지만, 21가지 다른 처방형태 중의 하나이다. 이는 주요 처방형태가 될 수 있지만 기본 처방형태라고는 할 수 없으며, 왕상휴수사(旺相休囚死)와 상생자가보(相生者可補) 상극자필윤(相克者必潤)가 결합된 형태가 기본 형태가 되어야 한다. 4. 사암의 처방원칙 중 하나는 상생관계나 상극관계 내에 있는 오행요소끼리는 자신을 포함해 상황에 따라 선택적으로 보(補)나 사(瀉)를 할 수 있다는 것이고, 다른 하나는 실(실)ㅋ한 경우에만 해당하는 것으로 상생관계에 있는 가족 중에서 모(母)나 자신을 보(補)하고 자(子)를 사(瀉)하는 방법을 사용하기도 한다는 것이다.

• Korean journal of communication and information
• /
• v.38
• /
• pp.183-210
• /
• 2007

The study tried to explore ordinary people's press fairness concept being neglected by the mainstream of fairness research thus far. With empirical standpoint, this study first investigated (un)fairness concept held by general audience, and then compared it with existing ones long suggested by experts such as scholars and media workers. Also, the study examined audience's concept construct in terms of its characteristics and implications. A systematic sample of 300 adults in Seoul was interviewed and their answers (instances of press unfairness) were analyzed and categorized. The most serious problem in fairness, they pointed, was that the press's not neutral. Also, truth and balance were importantly raised as a press problem with regard to fairness. The result showed press ethics and commercial morals could be a significant element for people's view on press fairness. These elements are new to the literature and heuristic regarding how to approach toward fairness issue in our society. The study also discusses the implications of other findings.

• Journal for History of Mathematics
• /
• v.21 no.3
• /
• pp.31-52
• /
• 2008

The concept of infinity, as with other scientific concepts, has a history of evolution. In the present work we intend to discuss the subject matter with regard to Bolzano since he is considered to be the first to accept the idea of actual infinity not just from a metaphysical perspective but from a mathematical one. Like modem platonists, Bolzano defended the infinite set itself regardless of the construction process; this is based on the principal of comprehension and unicity of denotation regarding all concepts. In addition, instead of considering as paradoxical the fact that a one-to-one correspondence existed between an infinite set and its parts, he regarded it in a positive way as a special characteristic. While the Greek era recognized the existence of only one infinity, Balzano acknowledged the existence of various types of infinity and formulated a logical definition for it. The question of infinity is a touchstone of constructive method which holds an increasingly important role in mathematics. The present study stops with just a brief reference to the subject matter and we will leave further in-depth investigation for later.