• 품질경영학회지
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• 제50권4호
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• pp.777-792
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• 2022

Purpose: This paper investigates the effects of leader feedback on employee creative problem-solving behavior. It also explores the relevant conditions that maximize the above relationship from the psychological trait and task nature perspectives. Specifically we examine how employee feedback acceptance and task complexity moderate the relationship between leader's feedback behavior on follower creative problem-solving behavior. Finally the three-way interaction among leader's feedback behavior, employee feedback acceptance and task complexity is analyzed for the best conditions to maximize the positive effect of leader's feedback on creative problem solving behavior. Methods: This paper used a cross-sectional design with questionnaires administered to 411 employees working in Korean manufacturing and service firms. It applied a hierarchical regression analysis to test the hypothesized relationships including three-way interaction effect among leader's feedback behavior, follower feedback acceptance and task complexity on follower creative problem-solving behavior. Results: The empirical results of the paper indicated that the leader feedback behavior had enhanced employee creative problem-solving behavior. It was also found that follower feedback acceptance and task complexity positively moderated the relationship between leader's feedback and follower problem solving behavior. In addition, the test of three-way interaction effects also revealed that the higher the levels of both employee feedback acceptance and task complexity, the greater the positive effect of leader feedback behavior on employee creative problem solving behavior. Conclusion: This paper contributes to the leadership and creativity literatures by identifying the role of leader's behavior enhancing employee creative problem-solving behavior and the specific conditions strengthening the positive effect of leader feedback behavior on employee creative problem-solving behavior.

• 한국수학교육학회지시리즈A:수학교육
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• 제55권3호
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• pp.251-279
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• 2016

There are many studies on 'how' students solve mathematical problems, but few of them sufficiently explained 'why' they have to solve the problems in their own different ways. As quantitative reasoning is the basis for algebraic reasoning, to scrutinize a student's way of dealing with quantities in a problem situation is critical for understanding why the student has to solve it in such a way. From our teaching experiments with two ninth-grade students, we found that emergences of a certain level of covariational reasoning were highly consistent across different types of problems within each participating student. They conceived the given problem situations at different levels of covariation and constructed their own quantity-structures. It led them to solve the problems with the resources accessible to their structures only, and never reconciled with the other's solving strategies even after having reflection and discussion on their solutions. It indicates that their own structure of quantities constrained the whole process of problem solving and they could not discard the structures. Based on the results, we argue that teachers, in order to provide practical supports for students' problem solving, need to focus on the students' way of covariational reasoning of problem situations.

• 한국생활과학회지
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• 제15권4호
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• pp.551-561
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• 2006

The purpose of the study is to examine the influence of children's familiarity with a task and teachers' feedback on their problem solving performances. It was assumed that children's' problem solving performance would be different depending on the children's familiarity with a task and the feedback from teachers. The study also examined whether children's' problem solving competence would be different depending on their gender and age. The experiment was conducted with two experimental tools. The subjects were 58 children who were 5 to 6-year-old, enrolled in kindergartens in Koyang city in Kyunggi province. The collected data were processed with SPSS 11.0 program to get the average and the standard deviations, and with one-way ANOVA and two-way ANOVA with repeated measures. The results of the experiment are as follows; First, children's' problem solving competence was different depending on their age. Older children showed higher performance than younger children, while there's no difference in children's performance depending on their gender. Second, the teachers' feedback didn't influence children's problem solving performance. Third, children showed higher performance when familiar tasks were provided, compared to when typical tasks were provided. Finally, this study found that children's task familiarity has an influence on their problem solving performance.

• 아동학회지
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• 제28권1호
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• pp.55-69
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• 2007

This research examined age differences in the way 3-, 4-, 5-year-old children solve scientific problems involving magnetic and nonmagnetic objects. Their scientific process skills and scientific concepts were examined in 1) hypothesis setting, 2) hypothesis verification and 3) hypothesis application. Data was analyzed by one-way and two-way ANOVA and Scheffe. Children's scientific process skill presented differences by age in each phase of problem solving. That is, the scientific concept level demonstrated by 4-year-olds was higher than that of the 3-year-olds. That of the 5-year-olds was higher than the 4-year-olds. In addition, in all age groups, the children showed a higher level of understanding about magnetic and non-magnetic objects in the hypothesis application phase than in the hypothesis setting phase.

• 아동학회지
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• 제14권2호
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• pp.49-63
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• 1993

The purpose of this study was to investigate the effects of problem solving interaction through puppetry on interpersonal problem solving thinking. The subjects were 60 children, ranging in age from 69 to 72 months. All subjects were randomly assigned to one of three experimental groups: the control group with no treatment, the puppetry group, the puppetry problem solving interaction group. The treatment covered 4 weeks. The instrument was based on Shure and Spivack's(1974) Preschool Interpersonal Problem Solving (PIPS) test. The data were analyzed with paired t-test, one-way ANOVA, Tukey test, percentage, and Kendall's ${\tau}$. There were significant differences among the three groups in the frequency of solving interpersonal problems. The problem solving interaction with puppetry group was the most effective on Interpersonal Cognitive Problem Solving Strategies. These results showed that problem solving interaction with puppetry is effective in cultivating young children's interpersonal problem solving thinking.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제2권1호
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• pp.3-13
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• 1998

In mathematics education we have focused on how to improve the problem-solving ability, which makes its way to the new direction with the introduction of meta-cognition. As meta-cognition is based on cognitive activity of learners and concerned about internal properties, we may find a more effective way to generate learners problem-solving power. Its means that learners can regulate cognitive process according to their gorls of learning by themselves. Moreover, they are expected to make active participation through this process. If specific meta problems designed to develop meta-cognition are offered, learners are able to work alone by means of their own cognition and regulation while solving problems. They can transfer meta-cognition to the other subjects as well as mathematics. The studies on meta-cognition conducted so far may be divided into these three types. First in Flavell(［3］) meta-cognition is defined as the matter of being conscious of one's own cognition, that is, recognizing cognition. He conducted an experiment with presschoolers and children who just entered primary school and concluded that their cognition may be described as general stage that can not link to specific situation in line with Piaget. Second, Brown(［1］, ［2］) and others argued that meta-cognition means control and regulation of one's own cognition and tried to apply such concept to classrooms. He tried to fined out the strategies used by intelligent students and teach such types of activity to other students. Third, Merleary-Ponty (1962) claimed that meta-cognition is children's way of understanding phenomena or objects. They worked on what would come out in children's cognition responding to their surrounding world. In this paper following the model of meta-cognition produced by Lester (［7］) based on such ideas, we develop types of meta-cognition. In the process of meta-cognition, the meta-cognition working for it is to be intentionally developed and to help unskilled students conduct meta-cognition. When meta-cognition is disciplined through meta problems, their problem-solving power will provide more refined methods for the given problems through autonomous meta-cognitive activity without any further meta problems.

• 아동학회지
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• 제12권1호
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• pp.52-67
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• 1991

The purpose of the present study was to investigate children's interpersonal problem solving strategies. Specifically, the number and categories of interpersonal problem solving strategies were examined by age, sex, and source of problem (friends or mother). The subjects were eighty 4,-and 6-year-old boys and girls. The instrument was based on Shure and Spivack's (1974) Preschool Interpersonal Problem Solving (PIPS) test. The test was administered to the children individually in the preschool setting. The data were analyzed by two-way ANOVA, frequency, percentage, and Kendall's Tau. The results showed that the older children had higher PIPS scores; that is, the 6-year-olds suggested more alternative problem solving strategies than 4-year-olds. Children suggested more alternate strategies and different strategies for solving problems with friends compared to solving problems with mothers.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제20권3호
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• pp.373-389
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• 2006

본 연구에서는 조합등식의 증명에서 조합적 논증을 이용한 증명방법과 기존의 수학교과서에 제시된 증명방법을 비교하고 조합등식에서 조합적 논증을 이용한 문제해결 전략을 유형별로 분류하여 제시하고자 한다. 이를 통해서 조합적 논증을 이용한 조합등식의 탐구활동을 교수 학습과정에 활용하고, 심화 학습 자료를 개발하는데 기초 자료가 될 수 있을 것이다.

• 융합정보논문지
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• 제9권12호
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• pp.244-251
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• 2019

치위생학 전공 대학생들의 비판적 사고성향, 의사소통능력, 자율적 교육풍토가 문제해결능력에 영향을 미치는 요인을 파악하고자 한다. 2018년 5월 20일부터 6월 1일까지 2개 대학교에 재학 중인 치위생학과 249명 대상으로 시행하였다. 통계분석은 평균, t-test, one-way ANOVA로 실시하였다. 비판적사고성향의 전체평균은 3.47점이었고 의사소통생활의 전체평균은 3.48점으로 나타났다. 자율적 교육풍토의 전체 평균은 3.14점이었고, 문제해결능력의 전제 평균은 3.40점으로 나타났다. 치위생학 전공 대학생들의 문제해결능력에 영향을 미치는 요인은 비판적 사고성향 점수가 높을수록 문제해결능력이 높게 나타났으며(p<0.001), 전공만족도가 높을수록 문제해결능력이 높게 나타났다(p<0.05). 따라서 치위생학 전공 대학생들의 의사소통능력과 비판적 사고성향, 자율적 교육풍토를 향상하는 프로그램이 적용된다면 문제해결능력을 더 높일 수 있을 것으로 기대한다.

• Journal of the Korean Society for Industrial and Applied Mathematics
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• 제7권1호
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• pp.25-31
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• 2003

The concepts of stability of algorithms for solving the symmetric and generalized symmetric-definite eigenproblems are discussed. An algorithm for solving the symmetric eigenproblem $Ax={\lambda}x$ is stable if the computed solution z is the exact solution of some slightly perturbed system $(A+E)z={\lambda}z$. We use both normwise approach and componentwise way of measuring the size of the perturbations in data. If E preserves symmetry we say that an algorithm is strongly stable (in a normwise or componentwise sense, respectively). The relations between the stability and strong stability are investigated for some classes of matrices.