• 한국초등수학교육학회지
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• 제20권2호
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• pp.239-257
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• 2016

미국의 새 수학과 규준인 Common Core State Standards for Mathematics는 잘 알려진 것처럼 모든 학생이 대학에 진학하거나 직업에 종사하기위한 준비를 위해 명료하고 일관된 틀을 제공하는 것을 목표로 개발되어, 현재 40개의 주가 이 새로운 규준을 채택하고 있다. 이 규준에 관한 최근 우리나라의 선행연구들은 규준을 Cluster Heading 수준에서 소개하고 있고, 규준의 수준에서 우리나라의 교육과정과 비교하고 있다. 그러니 실제로 각 세부 규준의 내용을 상세하게 해석한 내용은 수면 아래의 모습을 보여 준다. 캘리포니아 주의 수학과 규준의 내용을 상세하게 해석한 책이 Mathematics Framework for California Public Schools이다. 이 연구는 미국 캘리포니아 주의 수학과 규준인 California Common Core State Standards(CA CCSSM)와 이 규준의 해설서라고 부르기에 적당한 Mathematics Framework for California Public Schools에서 제시한 초등학교 도형영역을 상세하게 살펴보는 것이 목적이다.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제11권1호
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• pp.65-74
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• 2007

The algorithmic idea has been a kind of necessary mathematics quality for modern people in this information society. In China the algorithm was represented fully as one of the new mathematics contents in the secondary level for the first time when The Standards of Mathematics Curriculum for the Senior High School was promulgated in 2003, so the research about the teaching algorithm undoubtedly has its practical implications for mathematics education. In this paper, with the conceptual framework of The Mathematics Task Framework as the research tool, an algorithmic teaching case based on LOGO software was introduced in detail, and data by ways of observations, interviews and worksheets were collected, then the case was analyzed. The results showed that the teaching of algorithm is feasible and effective in the LOGO environment. Some beneficial implications about the instructional design of algorithm were also discussed.

• East Asian mathematical journal
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• 제36권4호
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• pp.493-513
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• 2020

The reason for this study is that the learning content of geometric construction in school mathematics is very insufficient. Geometric construction not only enables in-depth understanding of shapes, but also improves deductive proof skills. In school mathematics education, geometric construction is a very important learning factor, and educational significance is very high in that it can develop reasoning skills essential to the future society. Nevertheless, the reduction of geometric construction learning content in Korean curriculum and mathematics textbooks is against the times. Therefore, the purpose of this study is to analyze the transition of geometric construction learning contents in middle school mathematics curriculum and mathematics textbooks. In order to achieve the purpose of this study, the following studies were conducted. First, we analyze the characteristics of geometric construction according to changes in curriculum and textbooks. Second, we develop a framework for analyzing geometric construction tasks. Third, we explore geometric construction tasks according to the developed framework. Through this, it is expected to provide significant implications for the geometric areas of the new middle school curriculum that will be developed in the future.

• Journal of applied mathematics & informatics
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• 제27권3_4호
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• pp.661-672
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• 2009

In this paper, we introduce a modified three-step iteration scheme with errors for asymptotically nonexpansive mappings in the framework of uniformly convex Banach spaces. Weak and strong convergence theorems are established.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제9권3호
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• pp.233-241
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• 2005

Mathematics has developed dramatically in today's world and come to be increasingly put into practical use in various fields in society. However, many Japanese students dislike mathematics. We have to study mathematics education with this situation in our mind. When we consider a better educational material, we don't have to consider only within the framework of the current school mathematics. We can expect to find good mathematical materials in fields beyond the school mathematics. In this paper, we study how the inclusion of idea such as 'fuzzy theory' and 'graph theory' influences pupils' approaches to learning mathematics.

• 한국학교수학회논문집
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• 제16권4호
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• pp.863-882
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• 2013

본 연구에서는 최근 OECD PISA에서 최상위 성취를 보이고 있는 상하이의 교육성과에 주목할 필요성을 인식하고 다음의 두 측면에서 연구를 수행하였다. 첫째, 중국 및 상하이와 관련된 다양한 문헌을 토대로 상하이의 교육체제 및 수학교육 현황에 대해 조사하였다. 둘째, 우리나라와 상하이를 중심으로 PISA 2009 결과를 분석하여 우리나라 수학교육에서 보완해야할 부분에 대해 조사하였다. 그 결과, PISA 2009에서 상하이의 수학 평균점수는 600점으로 우리나라의 546점보다 50점 이상 높았으며, 수학 평가틀을 이용하여 분석한 결과, 모든 하위요소의 문항에 대해 우리나라보다 높은 정답률을 보였다. 특히 '수학적 과정'의 '반성'에서는 대부분의 성취수준에서 유의한 차이를 보였으며, '형식화하기'에서는 2수준과 6수준에서 유의한 차이를 보였다. 해당 수학적 과정은 고차원적 수학화 단계 및 실제 맥락에서 수학적 문제를 만들어내는 가장 핵심적인 모델링 과정인 만큼 이에 대한 교수 학습을 보완하고, 필요한 경우 상하이의 수학교육을 벤치마킹하여 우리나라 학생들의 수학 소양이 신장될 수 있도록 다양한 교육적 노력을 기울여야 할 것이다.

• 한국수학교육학회지시리즈A:수학교육
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• 제54권3호
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• pp.261-282
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• 2015

The purpose of this study was to provide insights on making Korean mathematics framework by analytical comparison of three major assessments such as the NAEP 2015, the TIMSS 2015 and the PISA 2015. This study focused on the key differences and common themes of mathematics frameworks among three major assessments. In order to achieve this purpose, mathematical frameworks of the NAEP 2015, the TIMSS 2015, and the PISA 2015 were analyzed and compared. The criteria of the comparison were content domain and cognitive domain. The comparing criteria of content domain were based on NCTM content standards and cognitive domain were used the three understanding levels of Jan de Lange's pyramid model. Based on these comparisons, researchers discussed that Korea mathematical framework was needed to have a set of content categories that reflect the range of underlying mathematical phenomena and a set of cognitive levels which contain the range of underlying fundamental mathematical capabilities including consideration of contexts.

• 대한수학교육학회지:학교수학
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• 제3권2호
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• pp.325-354
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• 2001

The study aims to develop balanced performance assessment tasks for primary school mathematics which can be implemented in the primary school easily. In order to these purposes, I suggest the types of performance assessment tasks and the framework of assessment standards for the balanced performance assessment with describing the procedures of developing tasks and rubrics. The types of task are journal writing, problem posing, constructed task, and descriptive task. In the framework of assessment standards, I suggest holistic scoring which are classified as four levels according to the degree of excellence which students perform totally concerning about the criterion of implication, reasoning, accuracy, and communication. Also I analyse the responses of children to the task “make a beautiful pattern” and suggest its assessment rubric and anchor papers for each level for illustrating the process of developing a rubric in holistic scoring. In order to reflect the viewpoints of children and their Parents concerning about the tasks, the responses in self assessment and parent assessment are analysed. Finally, methods of implementing the assessment tasks and considerations are discussed.

• Journal of applied mathematics & informatics
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• 제41권5호
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• pp.1129-1143
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• 2023

Social media platforms have become an integral part of our daily lives, and they generate vast amounts of data that can be analyzed for various purposes. However, the quality of the data obtained from social media is often questionable due to factors such as noise, bias, and incompleteness. Enhancing data quality is crucial to ensure the reliability and validity of the results obtained from such data. This paper proposes an enhanced decision-making framework based on Business Decision Management Systems (BDMS) that addresses these challenges by incorporating a data quality enhancement component. The framework includes a backtracking method to improve plan failures and risk-taking abilities and a steep optimized strategy to enhance training plan and resource management, all of which contribute to improving the quality of the data. We examine the efficacy of the proposed framework through research data, which provides evidence of its ability to increase the level of effectiveness and performance by enhancing data quality. Additionally, we demonstrate the reliability of the proposed framework through simulation analysis, which includes true positive analysis, performance analysis, error analysis, and accuracy analysis. This research contributes to the field of business intelligence by providing a framework that addresses critical data quality challenges faced by organizations in decision-making environments.

• Korean Journal of Mathematics
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• 제18권3호
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• pp.213-227
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• 2010

Convergence of an implicit iterative process is investigated for nonexpansive mappings. Strong and weak convergence theorems of common fixed points of two finite families of nonexpansive mappings are established in the framework of Banach spaces.