• Title/Summary/Keyword: Contextual Problems

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Analysis on the Problem-Solving Methods of Students on Contextual and Noncontextual problems of Fractional Computation and Comparing Quantities (분수의 연산과 크기 비교에서 맥락 문제와 비맥락 문제에 대한 학생들의 문제해결 방법 분석)

  • Beom, A Young;Lee, Dae Hyun
    • Education of Primary School Mathematics
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    • v.15 no.3
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    • pp.219-233
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    • 2012
  • Practicality and value of mathematics can be verified when different problems that we face in life are resolved through mathematical knowledge. This study intends to identify whether the fraction teaching is being taught and learned at current elementary schools for students to recognize practicality and value of mathematical knowledge and to have the ability to apply the concept when solving problems in the real world. Accordingly, contextual problems and noncontextual problems are proposed around fractional arithmetic area, and compared and analyze the achievement level and problem solving processes of them. Analysis showed that there was significant difference in achievement level and solving process between contextual problems and noncontextual problems. To instruct more meaningful learning for student, contextual problems including historical context or practical situation should be presented for students to experience mathematics of creating mathematical knowledge on their own.

An Analysis on Mathematics Textbook Problems Focusing on 'Contextualization' ('맥락성' 관점에서 본 수학교과서의 문제 분석)

  • Kim, Min-Kyeong;Park, Eun-Jeung;Heo, Ji-Yeon
    • Journal of the Korean School Mathematics Society
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    • v.15 no.1
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    • pp.1-25
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    • 2012
  • The purpose of this study is to extract the conceptual nature of contextualization in mathematical problems and to analyze problems according to its conceptual framework based on the perspective of RME (Realistic Mathematical Education) which emphasizes mathematising through realistic context in mathematics textbooks of the 4th grade in Korean textbooks and the U. S. materials. "Contextualization" was analyzed by three elements such as everydayness, variety, and mathematical immanence. As results, Korean textbook showed much less in the amount of contextual problems and also represented lower contextualization in contextual problems than that of American textbooks.

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Goal-based Evaluation of Contextual Situations for Self-adaptive Software (자기적응형 소프트웨어를 위한 목표 기반의 외부상황 평가 기법)

  • Kim Jae-Sun;Park Soo-Yong
    • Journal of KIISE:Software and Applications
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    • v.33 no.3
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    • pp.316-334
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    • 2006
  • In the traditional computing paradigm, developers design software to run in a fixed and well-defined environment. The real environment, however, is too complicated to analyze all situations perfectly. Consequently, traditional software, which is implemented only for what is wanted as input, often fails badly in real environment. As a new approach, self-adaptive software can avoid runtime failures adapting to unpredictable situations. Self-adaptive software must firstly evaluate the contextual situation to determine the need for adaptation. Existing researches do not support the abstraction mechanism for identifying contextual problem. Consequently, they can have troubles with identifying the contextual problem as the execution environment is getting complex. In addition, they cannot support the expandability for contextual problems, which software can evaluate. This paper suggests the goal-based evaluation method of contextual situation for coping with the limitations of existing researches.

An Interpretation of the Urban Folly in Gwangju, South Korea Through the Lens of Contextual Novelty

  • Lee, Min Jung;Lee, Dong-Eon
    • Architectural research
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    • v.18 no.4
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    • pp.157-164
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    • 2016
  • Urban regeneration, which implies a certain type of change from what has previously existed, requires fundamental understandings of previous problematic ways of thinking for a meaningful change, as well as a new philosophy that is thought to support that change. This means a change in philosophy is needed to discuss 'newness' in urban regeneration. From this perspective, this paper explores the philosophies which shaped traditional cities as well as a philosophy that may be able to suggest changes to contemporary cities. This paper further proposes contextual novelty as necessary to pursue. This contextual novelty does not deny modern cities' problems but embraces them and carries them into contemporary cities. Arguing for qualitative novelty, this paper argues that contextualism, which explores the complex relationships of direct and indirect contributors of a given event, can help us to understand contemporary cities' heterogenic characteristics. In this context, this paper discusses the concept of novelty in contemporary discourse of urban regeneration by using the philosophy of contextualism. Finally a recent example of urban regeneration in the city of Gwangju, South Korea is interpreted using the concept of contextual novelty.

The Textbook Analysis on Probability: The Case of Korea, Malaysia and U.S. Textbooks

  • Han, Sun-Young;Rosli, Roslinda;Capraro, Robert M.;Capraro, Mary M.
    • Research in Mathematical Education
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    • v.15 no.2
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    • pp.127-140
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    • 2011
  • "Statistical literacy" is important to be an effective citizen ([Gal, I. (2005). Towards "probability literacy" for all citizens: Building blocks and instructional dilemmas. In: G. A. Jones (Ed.), Exploring probability in school: Challenges for teaching and learning (pp. 39-63). New York: Springer]). Probability and statistics has been connected with real context and can be used to stimulate students' creative abilities. This study aims at identifying the extent that textbooks in three countries include experimental probability concepts and non-routine, open-ended, application and contextual problems. How well textbooks reflect real application situations is important in the sense that students can employ probability concepts when solving real world problems. Results showed that three textbook series did not mention experimental probability. Furthermore, all of text-books had more routine, close-ended, knowing, and non-contextual problems.

Consumer Adoption and Satisfaction with E-Commerce - A Cross-Country Study - (전자상거래 활용 및 만족에 관한 연구 - 국가 간 비교 분석 -)

  • Lee, Dong-Won;Ahn, Joong-Ho
    • Asia pacific journal of information systems
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    • v.11 no.2
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    • pp.1-21
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    • 2001
  • The unprecedented growth of Internet technologies has made resources on the World-Wide-Web(WWW) instantly accessible to various user communities. While e-commerce has become as an important issue with the growth of the Internet, there are insufficient empirical research efforts concerning its status in Korea. The United States, in contrast, has made significant efforts in making empirical research regarding this issue. In this paper, we demonstrate not only how these contextual differences influence consumer satisfaction with the purchased products/services, but also what contextual constructs make consumers satisfied or dissatisfied. In addition, we tried to find the difference in the factors of consumer satisfaction between a developed country(i.e., United States) and a developing country(i.e., Korea) with regard to e-commerce. The study findings suggest that contextual problems need to be solved before e-commerce provides real benefits for consumers and businesses.

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A Multi-level Study of Contextual Effects of Community Capacity on Health Status among Seoul Residents: Focused on Social Quality (지역사회역량이 건강에 미치는 영향에 대한 다수준 분석: 사회의 질 증진에 주는 함의)

  • Jung, Min-Soo;Cho, Byong-Hee
    • Korean Journal of Health Education and Promotion
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    • v.28 no.4
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    • pp.1-14
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    • 2011
  • Objectives: The aim of the present study is to elucidate the relationship of community capacity to health in a metropolitan area in Korea. To do so, a multi-level model to verify the contextual effects of community capacity is presented. Methods: The study materials are the "The 4th Seoul Citizens Health Indicators Surveys" on 404 dong in Seoul. The community capacity indicators were developed in two strata: individual-level indicators with community identity domain; and community-level indicators with participation in community organizations, number of non-profit organizations, degree of organizing of community-based organizations, and volunteer activities. Results: Higher unhealthy probability occurs among those with lower community capacity at the community level, lower individual income, and lower community satisfaction at the individual level. It contributed to explaining self-rated health status and showed that there were contextual effects of the community going beyond the compositional effects of the individual. Conclusions: In the process of building community capacity, a community autonomously finds pending issues and solves related problems, and in so doing, raises the social quality and establishes the conditions for health promotion. Thus, the significance of neighborhood needs to be discovered and created in a new way through the development of community capacity.

An Evaluation of Practical Implementability of Records Management Metadata Standard: With Special Emphasis on its Contextual Elements (기록관리 메타데이터 표준의 실행 적합성 평가 - 맥락 요소를 중심으로 -)

  • Seol, Moon-Won;Cho, Eun-Hee
    • Journal of Korean Society of Archives and Records Management
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    • v.10 no.2
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    • pp.215-243
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    • 2010
  • The purpose of the study is to evaluate Korean Records Management Metadata Standard with special emphasis on the contextual elements in their implementation aspect, and to provide the direction of the Standard revision for improving the metadata quality of RMS developed by National Archives of Korea. The present paper begins with comparing RMS data and the Standard elements, and examines the problems of current accumulation practices of contextual metadata elements in the RMS. Finally it makes some suggestions concerning the Standard revision as well as RMS function upgrade.

Contextual Advertisement System based on Document Clustering (문서 클러스터링을 이용한 문맥 광고 시스템)

  • Lee, Dong-Kwang;Kang, In-Ho;An, Dong-Un
    • The KIPS Transactions:PartB
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    • v.15B no.1
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    • pp.73-80
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    • 2008
  • In this paper, an advertisement-keyword finding method using document clustering is proposed to solve problems by ambiguous words and incorrect identification of main keywords. News articles that have similar contents and the same advertisement-keywords are clustered to construct the contextual information of advertisement-keywords. In addition to news articles, the web page and summary of a product are also used to construct the contextual information. The given document is classified as one of the news article clusters, and then cluster-relevant advertisement-keywords are used to identify keywords in the document. We could achieve 21% precision improvement by our proposed method.

Evaluation Model of Business process Contextual Situations using goal-scenario (목표 시나리오를 이용한 비즈니스 프로세스 외부상황 평가 모델)

  • Baek, Su-Jin;Ko, Jong-Won;Song, Young-Jae
    • The Journal of the Korea Contents Association
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    • v.11 no.8
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    • pp.43-50
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    • 2011
  • The scope of the problems that could be solved by monitoring and the improvement of the recognition time is directly correlated to the performance of the management function of the business process. However, the current event-managing monitoring system and the real-time advanced alarming business monitoring system decided whether to apply warnings or not by assuming a fixed environment and showing expressions based on the design rules. Therefore, there is a limit for distinguishing the range of occurrence and the level of severity in regard to the new external problems occurring in a complicated environment. Such problems cannot be abstracted. In this paper, evaluation model of business process contextual situations using goal scenario is suggested to provide constant services through the current monitoring process in regard to the service demands of the new scenario which occurs outside. The new demands based on the outside situation are analyzed according to the target scenario for the process activities. Also, a similar process model is found and identified by combining similarity and interrelationship. The process can be stopped in advance or adjusted to the wanted direction.