• Title/Summary/Keyword: 분석문제

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Problem Posing by Mathematically Gifted Middle School Students: A Case Study (수학 영재의 문제만들기: 사례 연구)

  • Paek, Dae-Hyun;Yi, Jin-Hee
    • School Mathematics
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    • v.12 no.3
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    • pp.259-271
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    • 2010
  • This study involves investigating problem posing practices for mathematically gifted first year middle school students in Korea. The overall purpose of this study is twofold: to examine the students' preferences on problem posing resources on the division algorithm and to analyze the approaches of the students' posing problems related to specific solution methods. To this end, the patterns of the problems are classified into 6 types such as 'routine' and 'nonroutine' problems associated with 3 levels of the original version of problems. Based on the analysis on the problems, we provide some implications about the nature of mathematically gifted students' problem posing practices in gifted education.

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Development of a Web Based Problem-Solving Learning System Supporting Problem-Solving Techniques (문제 해결 기법을 적용한 웹 기반 문제해결 학습 시스템 개발)

  • Baek, Hyeon-Gi;Ha, Tae-Hyeon
    • 한국디지털정책학회:학술대회논문집
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    • 2004.05a
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    • pp.517-524
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    • 2004
  • 교육은 끊임없는 대화로 이루어지므로 웹을 통한 온라인 학습 시스템에서도 사회적 상호작용이 활발히 일어날 수 있는 환경을 만드는것이 필수적이다. 이에 본 연구에서는 인터넷을 활용한 효과적인 문제 해결학습을 위해 플랫폼 독립적인 상호작용도구를 이용하는 웹 기반의 문제 해결학습시스템을 개발하였다. 문제 해결 모델은 학교 현장에서 학습효과를 증진시키기 위한 문제 해결 학습 모형으로 전문가 모둠 활동과 향상점수를 활용하여 학습에 긍정적인 영향을 주는 것으로 평가되고 있다. 본 연구에서는 문제해결을 위한 핵심적인 기법이라고 할 수 있는 문제분석과 결정분석 두 가지 기법을 중심으로 학습 프로그램 내용을 조직하고 지원하는 여러 가지 기능을 개발하였다.

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A Study on Solving Word Problems through the Articulation of Analogical Mapping (유추 사상의 명료화를 통한 문장제 해결에 관한 연구)

  • Kim, Ji Eun;Shin, Jaehong
    • Communications of Mathematical Education
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    • v.27 no.4
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    • pp.429-448
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    • 2013
  • The aim of this study was to examine how analogical mapping articulation activity played a role in solving process in word problems. We analyzed the problem solving strategies and processes that the participating thirty-three 8th grade students employed when solving the problems through analogical mapping articulation activities, and also the characteristics of the thinking processes from the aspects of similarity. As a result, this study indicates that analogical mapping articulation activity could be helpful when the students solved similar word problems, although some of them gained correct answers through pseudo-analytic thinking. Not to have them use pseudo-analytic thinking, it might be necessary to help them recognize superficial similarity and difference among the problems and construct structural similarity to know the principle of solution associated with the problematic situations.

Analysis on Analogical Transfer between Mathematical Isomorphic Problems with Different Level of Structuredness (구조화 정도가 다른 수학적 동형 문제 사이의 유추적 전이 분석)

  • Sung, Chang-Geun;Park, Sung-Sun
    • Education of Primary School Mathematics
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    • v.15 no.2
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    • pp.59-75
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    • 2012
  • This study aims to find whether the solutions for well-structured problems learned in school can be transferred to the moderately-structured problem and ill-structured problem. For these purpose, research questions were set up as follows: First, what are the patterns of changes in strategies used in solving the mathematics problems with different level of structuredness? Second, From the group using and not using proportion algorithm strategy in solving moderately-structured problem and ill-structured problem, what features were observed when they were solving that problems? Followings are the findings from this study. First, for the lower level of structuredness, the frequency of using multiplicative strategy was increased and frequency of proportion algorithm strategy use was decreased. Second, the students who used multiplicative strategies and proportion algorithm strategies to solve structured and ill-structured problems exhibited qualitative differences in the degree of understanding concept of ratio and proportion. This study has an important meaning in that it provided new direction for transfer and analogical problem solving study in mathematics education.

The Effect of Problem-based Learning Strategies (PBL) on Problem Solving Skill: A Meta-Analysis. (문제중심학습(PBL)이 문제해결능력에 미치는 효과에 관한 메타분석)

  • Park, Il-Soo
    • Journal of the Korea Convergence Society
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    • v.10 no.10
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    • pp.197-205
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    • 2019
  • The purpose of this research was examining the effects of problem-based learning strategies(PBL) on problem solving skill conducted in Korea, using meta-analysis technique. This meta-analysis reviewed the results of 41 studies published between 1998 and 2017 in Korea. The overall weighted mean effect size value was .753 with .064 standard error which was calculated by random effects model. PBL strategies have been found to be more effective in mathematics course (d=.922), art course (d=.916), practical art course (d=.827), E-PBL (d=.791) and middle school level (d=.972). As PBL exhibit a substantial effect on students' problem solving skill, it is recommended that teachers should learn how to implement these strategies in their lesson. PBL is expected to contribute to the improvement of teaching methods as the learning environment changes during the 4th Industrial Revolution.

Structural Model Analysis of the Effectiveness of Problem Solving Ability by Team-Based Learning Pedagogy

  • Moon, Kyung-Im
    • Journal of the Korea Society of Computer and Information
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    • v.25 no.10
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    • pp.193-201
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    • 2020
  • This study is to evaluate the effectiveness of problem-solving ability by applying a team-based learning model to the classes of humanities and social science students, and to conduct a structural model analysis on the relationship between sub-factors. Team-based learning was conducted six times in six teams with 30 students in the second and third grades of the humanities and social sciences. The problem solving ability score of the target students was significantly higher after team-based learning and was statistically significant. There was no problem in normality with the latent variables, which are the sub-factors of problem solving ability, and the factor load value was statistically significant at the .001 level in the confirmatory factor analysis of the observed variables for the latent variables, which was a valid model. A good level of fitness was also shown in the verification of the fitness of the research model. As a result, it was analyzed that latent variables of cause analysis, problem clarification, planning execution, performance evaluation, and alternative development had an indirect or direct influence on each other.

Factor Analysis of the Korean-Child Behavior Checklist in Children with Autism Spectrum Disorders (자폐 범주성 장애 아동에서 아동·청소년 행동평가척도의 요인분석)

  • Park, Eun-Young
    • The Journal of the Korea Contents Association
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    • v.11 no.8
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    • pp.221-230
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    • 2011
  • The purpose of this study was to examine validity of the Korean-Child Behavior Checklist: K-CBCL) as measures for emotional and behavioral problems for use with children with autism spectrum disorders. In present study, the factor of the K-CBCL was investigated, using data of 248 children with autism spectrum disorders, with 11.17 mean ages. The two factor model of Internalizing problems (Withdrawn, Somatic Complaints, Anxious/Depressed) and Externalizing problems (Delinquent Behavior, Aggressive Behavior) was investigated by the confirmatory factor analysis. The two factor model of K-CBCL was adequate for children with autism spectrum disorders. The inter-item consistency for the sub-factor of K-CBCL demonstrated on adequate reliability of the measure. Although the inter-item consistency of Withdraw, Social problems, Delinquent Behavior was not acceptable, the inter-item consistency of Internalizing, Externalizing and total problems were good. This results supported validity and reliability and suggested that K-CBCL is used to assess for emotional and behavioral problems in children with autism spectrum disorders.

Comparison of Spatial Optimization Techniques for Solving Visibility Location Problem (가시권 문제를 위한 공간최적화 기법 비교 연구)

  • Kim, Young-Hoon
    • Journal of the Korean Association of Geographic Information Studies
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    • v.9 no.3
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    • pp.156-170
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    • 2006
  • Determining the best visibility positions on terrain surface has been one of the frequently used analytical issues in GIS visibility analysis and the search for a solution has been carried out effectively using spatial search techniques. However, the spatial search process provides operational and methodological challenges for finding computational algorithms suitable for solving the best visibility site problem. For this problem, current GIS visibility analysis has not been successful due to limited algorithmic structure and operational performance. To meet these challenges, this paper suggests four algorithms explored robust search techniques: an extensive iterative search technique; a conventional solution based on the Tornqvist algorithm; genetic algorithm; and simulated annealing technique. The solution performance of these algorithms is compared on a set of visibility location problems and the experiment results demonstrate the useful feasibility. Finally, this paper presents the potential applicability of the new spatial search techniques for GIS visibility analysis by which the new search algorithms are of particular useful for tackling extensive visibility optimization problems as the next GIS analysis tool.

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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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비선형모형분석을 위한 탐색적 자료분석

  • Jang, Dae-Heung
    • Proceedings of the Korean Statistical Society Conference
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    • 2002.05a
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    • pp.25-28
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    • 2002
  • 비선형모형분석의 초기 단계에서 초기값(starting value, initial parameter value)를 결정하는 문제는 비선형모형의 모수추정을 위한 반복기법의 수렴속도나 국소값(local minimum)문제에 영향을 주게 된다. 본 논문을 통하여 탐색적 자료분석이 초기값를 결정하는 데 도움을 줄 수 있음을 보이고자 한다.

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