• 대한수학교육학회지:학교수학
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• 제11권3호
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• pp.335-349
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• 2009

이 논문은 수학 교사의 신념과 지식이 수학 수업에 어떻게 표현되는 지 미국 중학교 수학 교사의 수업 분석을 통한 사례연구 보고서이다. 미국 중학교 수학 교실에서 이루어지는 수업에 대한 정보를 제공할 뿐만 아니라, 수학교사의 신념과 지식이 수업에 어떻게 반영되고 적용되는지 상세하게 분석 설명한다. 사례 분석 연구 결과는 참여 수학 교사의 수학 교수학습에 대한 신념체계가 수업에 일정 정도 일관성 있게 표현됨을 보여 준다. 특히, 그 교사의 신념체계가 수학 수업을 조직하고 구성하는데 큰 영향을 미치는 것으로 나타났다.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제6권2호
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• pp.55-64
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• 2002

According to changing the society rapidly in the 21s1 century, the self-regulated learning ability is considered as an ability of which people should carry on their lives. The purpose of this study was to investigate prospective elementary school teachers in mathematics teaching method class in terms of the following areas: (1) the degree of their abilities shown the lower level factors of motivated strategies for learning such as self-efficacy, intrinsic value, anxiety, cognitive strategy use, and self-regulation (2) relations between factors of motivated strategies for loaming and performance of prospective elementary school teachers The results show that the prospective elementary school teachers showed above the mean value of the motivated strategies for learning and there are positive relations among lower level factors of motivated strategies fur learning except anxiety, positive relation between motivated strategies for learning and achievement. In order to help the prospective elementary school teacher to improve their motivated strategies fur learning in their elementary mathematics teaching method lecture, several methods such as mathematical connections to real world problem, history of mathematics and interview with mathematicians and application of feller's ARCS model to elementary mathematics education are suggested.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제33권2호
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• pp.123-139
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• 2019

이 연구는 우리나라 중등 수학교과서가 학생들에게 문제제기 활동의 기회를 충분히 주고 있는지 확인하기 위하여 2015 개정 수학과 교육과정에 따른 중학교 1학년 수학교과서의 문제제기 과제를 내용 영역, 과제 유형, 과제 맥락 등의 측면에서 분석하였다. 2015년 개정 수학과 교육과정에 따른 중학교 1학년 수학교과서 10종을 분석한 결과, 교과서에 포함된 문제제기 과제의 수는 적은편이며, 내용 영역별로 과제가 고르게 분포되어 있지 않았다. 문제제기 과제의 수학적 제약의 정도에 따라 분석한 결과, 수학적 제약 조건이 강하거나 약한 과제보다는 상대적으로 중간 정도의 제약 조건을 가지는 문제제기 과제가 더 많았다. 맥락 구성 요구에 따른 분석 결과, 학생들에게 새로운 맥락을 요구하지 않는 문제제기 과제가 더 많았고, 이러한 과제들은 주로 가장된 맥락을 사용하고 있었다. 이러한 결과를 바탕으로 수학교과서에서의 문제제기 과제 활용을 위한 시사점을 제시하였다.

• 충청수학회지
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• 제26권2호
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• pp.259-268
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• 2013

In this paper, we define the Banach-valued strong $M_{\alpha}$-integral and study the primitive of the strong $M_{\alpha}$-integral in terms of the $M_{\alpha}$-variational measures. We also prove that every function of bounded variation is a multiplier for the strong $M_{\alpha}$-integral.

• East Asian mathematical journal
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• 제37권4호
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• pp.355-379
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• 2021

In this article, we investigated plane figures introduced in elementary school mathematics in the perspective of traditional classification, and also analyzed plane figures focused on the invariance of plane figures out of traditional classification. In the view of traditional classification, how to treat trapezoids was a key argument. In the current mathematics curriculum of the elementary school mathematics, the concept of sliding, flipping, and turning are introduced as part of development activities of spatial sense, but it is rare to apply them directly to figures. For example, how are squares and rectangles different in terms of symmetry? One of the main purposes of geometry learning is the classification of figures. Thus, the activity of classifying plane figures from a symmetrical point of view has sufficiently educational significance from Klein's point of view.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제19권4호
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• pp.195-209
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• 2015

The current study investigated meaning of Jigsaw model application in teaching and learning mathematics based on the literature research and analysis of Jigsaw models. Through related literature, properties of the tasks of the expert sheets in mathematics are examined. Then the advantages of the application of Jigsaw in mathematics are discussed in terms of the realizing mathematical connections and promoting positive affective outcomes of Korean students in mathematics.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제4권1호
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• pp.1-22
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• 2000

The purpose of this study was to investigate the effects of using graphing calculators on students' understanding of the linear and quadratic function concepts. The populators of this study are tenth graders at high school in Seoul, one class for the treatment group and another class for the comparison group, and experiment period is 14 weeks including two weeks for school regular exams.Function tests used in the study was proposed which described a conceptual knowledge of functions in terms of the following components: a) Conceptual understanding, b) Interpreting a function in terms of a verbal experission, c) Translating between different representations of functions, and d) Mathematical modeling a real-world situation using functions. Even though the group test means of the individual components of conceptual understanding, interpreting, translating, mathematical modeling did not differ significantly, there is evidence that the two groups differed in their performance on conceptual understanding. It was shown that students learned algebra using graphing calculators view graphs more globally. The attitude survey assessed students' attitudes and perceptions about the value of mathematics, the usefulness of graphs in mathematics, mathematical confidence, mathematics anxiety, and their feelings about calculators. The overall t-test was not statistically significant, but the students in the treatment group showed significantly different levels of anxiety toward mathematics.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제5권2호
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• pp.111-119
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• 2001

Over the years, the benefits of instructional manipulatives in mathematics education have been verified by classroom practice and educational research. The purpose of this paper is to introduce how the instructional material, specifically, geoboard could be used and integrated in elementary mathematics classroom in order to develop student's mathematical concepts and process in terms of the following areas: (1) Number '||'&'||' Operation : counting, fraction '||'&'||' additio $n_traction/multiplication (2) Geometry : geometric concepts (3) Geometry : symmetry '||'&'||' motion (4) Measurement : area '||'&'||' perimeter (5) Probability '||'&'||' Statistics : table '||'&'||' graph (6) Pattern : finding patterns Further, future study will continue to foster how manipulatives will enhance children's mathematics knowledge and influence on their mathematics performance.

• East Asian mathematical journal
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• 제19권2호
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• pp.221-232
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• 2003

An identity for n-time differentiable functions of a real variable in terms of multiple integrals and applications for Ostrowski type inequalities are given.

• Journal of applied mathematics & informatics
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• 제39권1_2호
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• pp.125-131
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• 2021

In the paper, we investigate the representation of the numerical range W(An) for the 2 × 2 complex matrix A, in terms of the numerical range W(A) of the matrix A, and the elements of A or the eigenvalue of A.