• 한국수학교육학회지시리즈A:수학교육
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• 제49권3호
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• pp.287-298
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• 2010

The purpose of teacher education can be accepted in various meanings but it is not too much to say that the ultimate purpose is focused on training teachers to teach instruction in school effectively. The purpose of this article consists in giving some suggestive points to the primary teacher education of our country by introducing education system, teacher education programs, real cases of teacher education in new zealand to the readers. To do this, I took part in four classes and observed the ones, interviewed some students and collected the materials of products of activity during one year and also videotaped for analysis in the case of needed and so we have reached the following conclusions. First, we have found that the teacher education program, practicum, management of class and assessment system of new zealand college of education are quite different with our primary teacher education systems and also various courses are established. Second, the teacher education in new zealand is focused on how they compose the environment of learning related to the context of one. Third, we have to think seriously how we can teach our students interestingly in our classroom. Finally, the global trend of instruction in new zealand teacher education is oriented to learner and so I felt that daily class itself is the one to cultivate creativity of learner.

• Journal of applied mathematics & informatics
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• 제24권1_2호
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• pp.399-409
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• 2007

In this paper we use iterative dynamic programming in the discrete case to solve a wide range of the nonlinear equations systems. First, by defining an error function, we transform the problem to an optimal control problem in discrete case. In using iterative dynamic programming to solve optimal control problems up to now, we have broken up the problem into a number of stages and assumed that the performance index could always be expressed explicitly in terms of the state variables at the last stage. This provided a scheme where we could proceed backwards in a systematic way, carrying out optimization at each stage. Suppose that the performance index can not be expressed in terms of the variables at the last stage only. In other words, suppose the performance index is also a function of controls and variables at the other stages. Then we have a nonseparable optimal control problem. Furthermore, we obtain the path from the initial point up to the approximate solution.

• Journal of applied mathematics & informatics
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• 제20권1_2호
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• pp.171-180
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• 2006

Two infinite classes of special finite groups considered (The group G is special, if G' and Z(G) coincide). Using certain sequences of numbers we give explicit formulas for the Fibonacci lenghts of these classes which involve the well-known Wall numbers k(n).

• 대한수학교육학회지:수학교육학연구
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• 제9권1호
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• pp.263-278
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• 1999

Computer with various powerful functions has profound potential for mathematics instruction and learning. As computer technology progress, its applicability to mathematics education become more comprehensive. Not only its functional development but various psychological positions also changed the way computer technology utilized in mathematics education. In behaviorist's perspective, computer viewed as a teaching machine and constructivist viewed computer as microworld where students could explore various mathematical contents. Both theoretical positions emphasized individual aspect of learning because behaviorist tried to individualize learning using computer and constructivist focused on the process of individual construction. But learning is not only a individual event but also a social event. Therefore we must take social aspect into account. This is especially important when it comes to computer based learning. So far, mathematics loaming with computer weighed individual aspect of loaming. Even in microworld environment, learning should be mediated by teacher and collaborative learning activities. In this aspect, the roles of teacher and peers are very important and socio-cultural perspective sheds light on the computer based learning. In socio-cultural perspective, the idea of scaffold is very important in learning and students gradually internalize the social dimension and scaffolding is gradually faded. And in the zone of proximal development, teacher and more competent peers guide students to formulate their own understanding. In sum, we must take following points into account. First of all, computer should not be viewed as a medium for individualized teaming. That is, interaction with computer should be catalyst for collaborative activities with peers. So, exploration in computer environment has to be followed by small group activities including small group discussion. Secondly, regardless of the role that computer would play, teacher should play a crucial role in computer based learning. This does not mean teacher should direct every steps in learning process. Teacher's intervention should help student construct actively. Thirdly, it is needed to conceptualize computer in learning situation as medium. This would affect learning situation and result in the change of pre-service and in-service teacher training. Computer to be used effectively in mathematics classroom, researches on assessment of computer based learning are needed.

• Journal of applied mathematics & informatics
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• 제16권1_2호
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• pp.303-306
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• 2004

There are 49 non-metacyclic p-groups of order less than 1000 with trivial Schur multiplier. In this paper we give a list of deficiency zero presentations for these groups.

• East Asian mathematical journal
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• 제28권4호
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• pp.363-381
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• 2012

The purpose of this study to analyze correlation for the tendency of mathematics anxiety, traits according to the factors of mathematics anxiety and mathematics attitude depending on the teacher variable through a survey of mathematics anxiety and attitude toward mathematics on teaching mathematics of elementary school teachers. To solve the questions above, sampled 250 elementary school teachers in Daegu province. As a result of the study, mathematics anxiety on teaching is not actually formed a lot. However, the more training experience with mathematics, previous academic career, education career were, the lower mathematics anxiety was. The results showed that mathematics anxiety is affected by previous academic career, training experience with mathematics in particular. In addition, we found that mathematics anxiety is affected by mathematics anxiety in their school, recognition of the ability to explain mathematics contents and attitudes toward mathematics.

• 대한수학교육학회지:학교수학
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• 제3권2호
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• pp.401-421
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• 2001

This paper describes the teaching of mathematics in France at the elementary and secondary levels. It consists of four parts: the structure of the french education system and the status of mathematics within it, the evolution of mathematics teaching in France from 1968 to nowadays, the teacher training in France, the mathematical contents in the elementary school curriculum and the mathematics curriculum in the lower secondary school. From this review, we can extract some characteristics of the teaching of mathematics in France.

• 한국수학교육학회지시리즈A:수학교육
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• 제52권2호
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• pp.163-174
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• 2013

This study conducted a survey to examine the knowledge formation and utilization of computer among beginning teachers of secondary school mathematics. We found that beginning teachers who had more experiences of taking computer utilization classes at teacher education institutes showed more interest in computer and saw the necessity and effectiveness of computer usage for teaching students. Teachers chose GSP the most among computer utilization knowledge learned in pre-service teachers program, and GSP is used the most in mathematics classes. However, they answered that computer is not so much available in class due to lack of hours and the relevant resources. Lastly, beginning teachers answered that the computer knowledge learned in in-service teacher program was more useful than that in pre-service. Thus, the professional development in utilizing computer should be improved through diversifying teacher training contents for beginning teachers as well as for pre-service teachers in teacher education institutes.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제20권4호
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• pp.253-266
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• 2017

본 연구는 초등수학수업의 개선을 목표로 초등교사의 수학수업에 대한 인식을 조사함으로써 이후 수학수업개선의 방향 설정에 시사점을 제공하고자 한다. 이를 위해 수학수업분석 강의를 수강하는 초등교사의 수학수업에 대한 생각을 조사하였다. 특히 조사대상 교사들은 수학수업분석에 관심이 있을 뿐 아니라 실제 현장에서 타교사의 수학수업 분석 및 컨설팅 경험이 있는 교사들로, 조사대상 교사들이 가진 수학수업에 대한 생각들이 다른 교사들에게도 영향을 미칠 수 있다는 측면에서 이들이 가진 수학수업에 대한 인식은 중요한 의미를 가진다. 강의 수강 전에 수학을 중요 교과라고 생각하는 이유, 초등학생들이 수학을 싫어하고 어려워하는 이유, 현재 초등학교 수학교육이 제대로 이뤄지지 않은 이유, 바람직한 수학수업의 모습과 이를 위한 변화 등에 대해 서술형 문항을 이용하여 자료를 수집하였다. 수집된 자료를 분석하여 이후 수학수업의 변화에 대한 시사점을 제시하였다.

• 한국학교수학회논문집
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• 제20권4호
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• pp.465-494
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• 2017

본 연구에서는 권위적 및 대화적 담화 사례의 교사 담화 평가에서 드러난 예비 수학 교사들의 인식을 질적 내용 분석으로 탐색하였다. 예비교사들은 교사의 일방적 설명이나 학생 대답을 적극적으로 수용하지 않는 폐쇄적 발화에 비판적이었으며, 학생의 이유를 탐색하는 질문과 오답에 대한 개방적 태도를 지지했다는 측면에서 표면적으로 대화적 담화를 지향하고 있었다. 그러나 교사가 대부분의 인지활동을 대행하는 테스트 질문에 무비판적이었고, 학생들에게 제기된 답에 대한 수학적 판단 기회를 부여하여 대화적 상호작용을 촉진하는 교사 발문에 대해 심리적 저항을 보였다는 점에서, 예비교사들의 심층적인 권위적 담화 지향성도 확인할 수 있었다. 본 연구에서 보고한 교사교육 입문 초기 예비교사들의 담화인식은, 교실 담화에 대한 교사 전문성 교육 과정 설계에 유용한 기초를 제공할 수 있을 것이다.