• Communications of Mathematical Education
• /
• v.19 no.1 s.21
• /
• pp.271-290
• /
• 2005

오래 전부터 수학과의 연구는 학생들의 문제 해결력에 관하여 집중되어 온 것이 사실이다. 그럴 때마다 수학적 사고력에 관한 연구도 상당히 많은 부분이 있어 왔다. 본고에서는 학생들의 수학적 사고를 돕기 위한 방법으로 메타 인지를 강조함으로써 보다 까다로운 (비정형) 문제들의 문제 해결을 돕고자 하였다. 따라서 메타 인지를 유발하는 수업(소수 학습)을 통하여 학생들의 문제 해결력(정형 - 비정형)에서 유의미한 차이가 있는지를 알아보고, 궁극적으로는 메타 인지적 사고가 비정형 문제들을 해결하는 데 미치는 영향을 밝혀 수학 학습의 발전 방안을 찾고자 한다.

• Communications of Mathematical Education
• /
• v.18 no.1 s.18
• /
• pp.19-25
• /
• 2004

초등학교에서 고학년으로 갈수록 수학에 대한 흥미가 떨어지고 수학을 기피하는 학생들을 많이 볼 수 있다. 그러한 아동들의 대부분은 수학에 대한 어려움을 많이 호소하고 있는데 특히 비정형화된 문제들을 대할 때엔 그 현상은 더욱 심각하다. 초등학교 수학 교과서의 마지막 단원은 '문제 푸는 방법 찾기' 단원인데, 이 단원에 제시된 문제들은 대체로 비정형화된 문제들이다. 정형화된 문제에 익숙한 아동들은 이러한 비정형 문제들을 해결하는 데에 상당히 어려움을 나타내곤 한다. 본교에서는 이러한 아동들의 어려움을 해결할 수 있는 방안으로 협력학습을 택하였다. 또래들과의 상호작용 속에서 비정형화된 문제에 보다 친숙하게 접근하고 해결해 나가는 과정을 반복하다 보면 수학에 대한 흥미를 되찾게 되고, 문제 해결력과 수학적 사고력이 향상될 것으로 기대된다.

• Korean Journal of Construction Engineering and Management
• /
• v.15 no.3
• /
• pp.38-46
• /
• 2014

The Global's top five Design Firms selected from BauNetz a German architectural magazine in 2007 designed free form building design which was 25% of the overall design by 2006-2010. Free form building is a landmark of the city and the country so its social and economic impacts are very large. In case of Korea, free form buildings such as Tribowl in Incheon, KINTEX Exhibition hall 2 and Dongdaemun Design Plaza have increased. However, those the increase in design trends and, the needs due to the lack of free form building design and construction management experience, free form building projects can't be expected to profitability and have a number of problems after completion. Especially, there are many excessive quality problems and the rising cost due to design changes frequently and lack of experience and data. Thus an initial plan regardless of considering of free form building's characteristics can be a huge risk because of the difference with the plan and actual projects, yet there aren't free form building project's performance data and case studies related to productivity. In this study, through selection of low-construction productivity works and an analysis of the work process and productivity data, hope to propose an actual field productivity of free form building and the ways to improve productivity.

• Journal of Science Education
• /
• v.45 no.2
• /
• pp.247-256
• /
• 2021

Visual representation has been a useful tool in mathematical problem solving because it vividly express and structure the variables in the problem. But its effects may vary according to the types of problems. So, this study analyzes the survey results on the 5^th graders' visual representations using questionnaire consisting of the routine problems and the non-routine problems. The results are follows: The rate of correct answers in routine problems was higher than that of the non-routine problems. Even though the subjects were asked to solve the problem using visual representations, the ratio of solving the problem using the numerical expression was high in the routine problems. On the other hand, the rate of solving the problem using visual representation was high in the non-routine problems. The number of respondents who used visual representation in the non-routine problems was twice as many as that of the routine problems. But, among the subjects who used visual representation in the non-routine problems, the proportion of incorrect answers was also high, which resulted in using visual pictures. So, it is necessary to provide an experience that can use various types of the visual representations for problem solving and pay attention to the process of converting problems into visual representations.

• Proceedings of the Computational Structural Engineering Institute Conference
• /
• 2009.04a
• /
• pp.76-79
• /
• 2009

최근 계획되고 있는 초고층 건축물은 높이에 따른 기술경쟁력의 과시와 함께 비정형의 자유로운 건축적 형상을 통한 디자인 형태의 상징성을 강조하는 경향을 보이고 있다. 이러한 비정형 건축물의 구조시스템은 기술적, 경제적 문제로 인해 한정된 수의 가능성 있는 대안만이 고려되어 왔으나, 첨단 디지털 기술의 발전에 따라 비정형 건축물의 구조시스템에 대해 이전에는 적용이 불가능하였던 다수의 구조시스템 대안을 생성하고 동일한 컨셉을 가진 다양한 구조시스템 대안의 비교평가를 통해 검토안의 수를 최소화하는 것이 가능해졌다. 본 연구에서는 비정형 건축물 구조시스템 설계를 위한 디지털 요소기술에 대해 현재까지의 연구현황을 분석하고 앞으로의 연구방향과 과제를 제시하고자 한다.

• Proceedings of the Computational Structural Engineering Institute Conference
• /
• 2010.04a
• /
• pp.384-387
• /
• 2010

비정형 초고층 구조시스템 통합설계 플랫폼은 비정형 초고층건물의 구조시스템 설계를 지원하는 여러프로그램들을 통합적으로 활용하여 구조설계자들이 협업을 수행하는 체계이다. 이 체계의 핵심적인 사항은 각 프로그램들이 필요한 자료들을 신속하고 정확하게 교환하는 것이다. 표준자료모델은 여러 프로그램들의 자료교환을 목적으로 적절한 범위 내에서 필요한 자료들을 취합하여 체계화한 것이다. 하지만 표준자료모델은 각 프로그램에서 요구되는 모든 자료들을 취합하고 그 목적에 부합되도록 체계화시킬 수 없어 문제가 발생한다. 이에 본 연구에서는 비정형 초고층건물 구조시스템 통합설계 플랫폼의 각 프로그램들이 표준 자료모델을 이용하여 자료를 교환하는 방법을 검토하고 비교하고자 한다.

• Journal of the Korean School Mathematics Society
• /
• v.12 no.3
• /
• pp.247-265
• /
• 2009

In the 21C information-based society, there is an increasing demand for emphasizing communication in mathematics education. Therefore the purpose of this study was to research how properties of communication among small group members varied by mathematical problem types. 8 fourth-graders with different academic achievements in a classroom were divided into two heterogenous small groups, four children in each group, in order to carry out a descriptive and interpretive case study. 4 types of problems were developed in the concepts and the operations of fractions and decimals. Each group solved four types of problems five times, the process of which was recorded and copied by a camcorder for analysis, among with personal and group activity journals and the researcher's observations. The following results have been drawn from this study. First, students showed simple mathematical communication in conceptual or procedural problems which require the low level of cognitive demand. However, they made high participation in mathematical communication for atypical problems. Second, even participation by group members was found for all of types of problems. However, there was active communication in the form of error revision and complementation in atypical problems. Third, natural or receptive agreement types with the mathematical agreement process were mainly found for conceptual or procedural problems. But there were various types of agreement, including receptive, disputable, and refined agreement in atypical problems.

• Journal of the Korea Computer Graphics Society
• /
• v.5 no.1
• /
• pp.27-33
• /
• 1999

In this paper, we propose an efficient technique for the animation of flexible thin objects. Mass-spring model was employed to represent the flexible objects. Till now, many techniques have used the mass-spring model to generate plausible animation of soft objects. A straight-forward approach to the animation with mass-spring model is explicit Euler method, but the explicit Euler method has serious disadvantage that it suffers from 'instability problem'. The implicit integration method is a possible solution to overcome the instability problem. However, the most critical flaw of the implicit method is that it involves a large linear system. This paper presents a fast animation technique for mass-spring model with approximated implicit method. The proposed technique stably updates the state of n mass-points in O(n) time when the number of total springs are O(n). We also consider the interaction of the flexible object and air in order to generate plausible results.

• Journal of the Earthquake Engineering Society of Korea
• /
• v.5 no.1
• /
• pp.37-44
• /
• 2001

면진기술은 주로 저층 구조물의 내진설계에서 적용되는 방법으로 건물과 기초사이에 면진장치를 설치하여 상부로 전달되는 지진하중을 효과적으로 감소시킨다. 그러나 이 방법은 중.고층 구조물에 그대로 적용하기에는 여러 가지 기술적 문제가 따르므로, 구보물의 중간층 일부를 분리시켜 상부로 전달되는 지진력을 감소시킬 수 있을 것이다. 본 노문에서는 저층 뿐만 아니라, 중.고층 정형구조물의 주상복합건물과 같은 비정형 구조물에 대하여 구조물의 중간층 일부를 비선형 면진장치로 면진시키고 그 효과를 분석하였다. 이러한 중간층 면진 구조물의 경우, 고정기초 구조물에 비하여 적은 층간변위나 층전단력이 발생하였으며, 특히 주상복합건물에서 상당한 효과를 볼 수 있었다.

• Journal of Digital Convergence
• /
• v.18 no.6
• /
• pp.311-321
• /
• 2020

The purpose of the study is to verify the effectiveness the Freshman Preliminary Health Administrators(FPHA)' Empathic Problem Solving Ability(EPSA) through the application of Medical Service Design Thinking(MSDT) conducted by undergraduate school of SNS hospital marketing education. The pre-post questionnaire survey was conducted on 39 students in the freshman year of the Department of Health Administration after applying MSDT for 15 weeks from September to December, 2019 at a college in Daegu. MSDT was positive influenced on the improvement of Empathic Imagine, Empathic interest, Empathic awakening of the FPHA' EPSA. In the analysis of key common words, the use of neutral and negative words was low, while the use of positive words was high. In order to systematically equip Empathic problem solving job competency in the age of artificial intelligence, it is meaningful to develop a program for the freshmen curriculum and to conduct a analysis of the structured and unstructured data to verify its effectiveness. Additional program development research is needed for the application of theoretical subjects.