• Kyungpook Mathematical Journal
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• 제58권4호
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• pp.789-799
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• 2018

The purpose of the present paper is to discuss the geometrical properties of the Vaisman-Gray manifold (VG-manifold) of a pointwise holomorphic sectional conharmonic tensor (PHT-tensor). Furthermore, the necessary and sufficient conditions required for the VG-manifold to admit such a PHT-tensor have been determined. In particular, under certain conditions, we have established that the aforementioned manifold was an Einstein manifold.

• 대한수학교육학회지:수학교육학연구
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• 제17권4호
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• pp.381-393
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• 2007

본 연구는 수학 교사양성 교육과정 전후 학생을 비교.분석함으로서 사범대학 수학교육과 학생의 수학 및 수학교육에 대한 신념의 변화 또는 차이를 살펴보고, 수학교육의 발전을 위한 시사점을 찾아보는데 목적을 두고 있다. 이를 위해 수학교육과 1, 4학년 학생들을 각각 수학이란 학문에 대한 인식, 학습방법, 교과지도방법, 교사의 역할과 자격의 네 가지 신념 영역에 대해 비교.분석하였다. 그 결과, 1학년 집단보다는 4학년 집단이 수학 및 수학교육에 관한 신념에 대해 보다 긍정적으로 생각하고 있음을 알 수 있었다. 특히, 수학이란 학문에 대한 영역보다 수학교육적 측면에서의 두 집단 간 신념의 차이가 두드러져, 교사양성 교육과정에서의 '수학교육'이 학생에게 미치는 신념의 변화가 얼마나 중대한지를 이해하게 되었다. 두 집단간 차이의 원인은 문제해결학습, 현실에 근거한 교육, 교재연구 및 실습, 수학원리 체득 등의 다양한 교육활동을 4년간 수행한 결과에 기인된 것으로 간주된다.

• 공학교육연구
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• 제17권2호
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• pp.3-10
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• 2014

How to teach calculus is an important issue since Calculus is the first mathematics in college curriculum which highly influences other subjects including Physics, Engineering Mathematics like differential equations, and other engineering major subjects. This study suggests that a class model of Engineering Mathematics include Calculus review test so that students can study for themselves Calculus 'outside Calculus class'. First of all, a systematic process of administrating a review test is presented. Secondly, scores of the Calculus review test is statistically analyzed to confirm that ability in Calculus is highly correlated to their achievements in Engineering mathematics. Through a survey, it is confirmed that students in Engineering Mathematics study Calculus for themselves as they think Calculus review test is helpful.

• 한국수학교육학회:학술대회논문집
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• 한국수학교육학회 2010년도 제44회 전국수학교육연구대회
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• pp.281-289
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• 2010

Experiment teaching is an important part for science and engineering colleges, teaching through different pilot projects: First, help students to consolidate the theory of operation; second, trail students the capacity and the ability to solve practical problems. Improve students the curriculum of learning, and promote the formation of students to discover and solve the problem. of the basic quality in training students hands-on ability and ability to innovate, while guiding them to develop the attitude of scientific truth-seeking, the style of rigorous and thorough and the spirit of unity and coordination.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제14권4호
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• pp.323-332
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• 2010

It is the development of a mathematics teachers' teaching knowledge that manifests a mathematics teacher's professional knowledge growth. It is becoming a direct and effective approach of conversion of mathematical knowledge into the knowledge of mathematics teaching. Through the investigation, the study revealed that the knowledge conversion process of mathematics teachers in middle school is restricted by three aspects including eight factors. From this point, the authors have structured the path and model on influencing factors of middle school Mathematics Teaching Knowledge Conversion (MPCK), and discuss the mechanism of the transformation process.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제29권3호
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• pp.513-532
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• 2015

본 연구에서는 중위권 공과대학 신입생들의 수학에 대한 인식변화에 따른 대학수학의 교육방향을 연구하기 위하여 A대학교 공과대학 2011년과 2015년 신입생들을 대상으로 수학기초학력평가와 수학에 대한 인식 및 대학수학에 대한 설문을 실시하였고, 수학에 대한 인식변화를 고등학교 계열별, 대학수학능력시험 수학영역 응시유형별, 수학기초학력평가 성적별로 분석하였다. 연구 결과, A대학교 공과대학 신입생들은 수학기초학력이 부족한 것으로 나타났고, 2015년 신입생들은 2011년에 비해 자신이 느끼는 수학실력 수준이 향상되었고 대학수학 수업에서 더 노력하겠다고 답했다. 한편 2011년과 2015년 신입생 대부분이 대학수학은 전공을 위한 기초과목으로 인식하였고, 수업은 고등학교 중급 수준에서 시작하는 것과 교수가 이론설명 및 문제풀이도 해주는 수업방식을 선호했다. 본 연구 결과를 바탕으로 효율적인 대학수학 수업을 위해서는 교수 학습에서 수학기초학력의 향상에 초점을 두고 학생들 스스로 문제를 해결하는 학습태도를 강조해야 함을 제언하였다.

• 한국수학교육학회지시리즈B:순수및응용수학
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• 제14권2호
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• pp.49-62
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• 2007

In this paper, the oscillation and existence of nonoscillatory solutions of odd order difference equations with nonlinear neutral terms are studied respectively. Some new criteria are established. Furthermore, some examples are given to illustrate the advance of our results.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제12권3호
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• pp.167-177
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• 2008

The students' beliefs about mathematics teaching-learning come from the social activities in mathematics classrooms; and the mathematics classroom culture to a large extent decides the social activities in mathematics classrooms. So, the students' beliefs about mathematics teaching-learning are decided indirectly by the mathematics classroom culture mainly. The students' beliefs about mathematics teaching-learning react to the social activities in mathematics classrooms, and the social activities in mathematics classrooms react to the mathematics classroom culture. Therefore, the students' beliefs about mathematics teaching-learning react indirectly to the mathematics classroom culture. So, the relationships between the students' beliefs about mathematics teaching-learning and the mathematics classroom culture are dialectic, and the social activities in mathematics classrooms are the medium. In addition, the relationships have some inspirations to the current mathematics curriculum reform in the mainland China.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제13권2호
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• pp.91-101
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• 2009

The mathematics curriculum reform has been carried out for almost five years (2004-2008) in the mainland China. But the teaching and learning in mathematics classrooms still are traditional in nature. Analyzing from the cultural angle, some reasons can be found: the orientation of teachers' role, teaching, and learning, the relationships between a teacher and the students, understanding the mathematics, and examination.

• 한국수학교육학회지시리즈A:수학교육
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• 제49권3호
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• pp.329-341
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• 2010

In this paper, we analyzed the freshmen's achievements on general mathematics their GPA based on 'basic mathematics diagonal test score'. Also, we studied the achievements of students who were not passed the 'Basic Mathematics Diagonal Test (BMDT)' and had to take supplementary lessons to improve their mathematics abilities four times a week during the first semester of academic year 2008 in Mokpo National University. Before taking college entrance exam, high school students had to choose two types of scholastic area. One is on 'Ga' or 'Na' in mathematics and the other is on Natural Science or Social Science. According to the types, we classified the freshman-Ga or Na and NS or SS. We found some facts. First, a few of Ga and NS freshmen had low score on the BMDT. Second, Na and NS freshman got higher score than Na and SS freshmen on the BMDT. Third, Ga and NS freshmen who passed the BMDT got higher score on the general mathematics than those who failed the BMDT. Finally, there are correlations between achievements of general mathematics and a curriculum of freshmen who were passed test after taking supplementary lessons.