• Journal of the Korean School Mathematics Society
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• v.22 no.4
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• pp.415-438
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• 2019

The purpose of this study is to examine what aspects of mathematical activities in elementary school mathematics textbooks pre-service school teachers pay attention to in the process of didactic transposition. To do this, the third grade students of the College of Education were asked to analyze the activities of the elementary mathematics textbooks and then select a lesson activities as needed to modify or supplement the activities. As a result of the study, in the process of revising textbook activities for mathematics lessons, pre-service teachers pay attention to whether the textbook activities provide concrete activities, whether they induce student motivation, and whether there is overlap between classes activities. For the didactic transposition of textbook activities for mathematics lessons, pre-service teachers were able to comprehensively utilize relevant curriculum documents such as national curriculum and teachers' manual for checking the goals and achievement standards and lesson objectives.

• Proceedings of the Korea Multimedia Society Conference
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• 2002.11b
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• pp.716-719
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• 2002

이 연구의 목적은 근래에 초등학교 수학과 교육과정의 도형영역에 새로이 도입된 '공간감각'을 기르기 위한 웹 코스웨어를 개발하여 단순히 교과서에만 제시된 구체물 조작만으로는 기르기 힘든 공간감각을 기르는데 있다. 개발된 코스웨어는 학습내용을 수준별로 구성하고 있어 바로 학습 현장에 투입하여 수준별 학습, 개별화 학습을 실현할 수 있도록 하였다. 또한 초등학교 저학년에게 구체물로서는 조작할 수 없는 것들을 다양한 애니메이션 기법을 통하여 직접 조작해 볼 수 있도록 하고, 재미있는 놀이를 학습에 적절히 활용함으로써 학습 흥미도를 높이고자 하였다.

• School Mathematics
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• v.12 no.2
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• pp.151-176
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• 2010

This research aims to conduct the teaching experiment based on the constructivism to elementary preservice teachers and report on how they construct and develop the mathematical knowledge on ratio concept. Furthermore, this research aims to examine the significances and difficulties of "constructivist teaching experiment" which are conceived by elementary preservice teachers. As the results of this research, I identified the possibilities and limits of mathematical knowledge construction by elementary preservice teachers in the "constructivist teaching experiment". And the elementary preservice teachers pointed out the significances of "constructivist teaching experiment" such as the experience of prior thinking on the concept to be learned, the deep understanding on the concept, the active participation to the lesson, and the experience of learning process of elementary students. Also they pointed out the difficulties of "constructivist teaching experiment" such as the consumption of much time to carry out the constructivist teaching, the absence of direct feedbacks by teacher, and the adaption on the constructivist lesson.

• Education of Primary School Mathematics
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• v.26 no.3
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• pp.125-140
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• 2023

In elementary school mathematics, the addition and subtraction of fractions are difficult for students to understand but very important concepts. This study aims to examine the teaching methods and visual aids utilized in the context of common denominator fraction addition and subtraction. The analysis focuses on evaluating the lesson flow and the utilization of visual representations in one national textbook and ten certified textbooks aligned with the current 2015 revised curriculum. The results show that each textbook is composed of chapter sequences and topics that reflect the curriculum faithfully, with each textbook considering its own order and content. Additionally, each textbook uses a different variety and number of visual representations, presumably intended to aid in learning the operations of fractions through the consistency or diversity of the visual representations. Identifying the characteristics of each textbook can lead to more effective instruction in fraction operations.

• School Mathematics
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• v.18 no.3
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• pp.625-645
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• 2016

This study clarified the big ideas related to teaching addition and subtraction of fractions with different denominators based on quantitative reasoning with unit and recursive partitioning. An analysis of this study urged us to re-consider the content related to the addition and subtraction of fraction. As such, this study analyzed textbooks and teachers' manuals developed from the fourth national mathematics curriculum to the most recent 2009 curriculum. In addition and subtraction of fractions with different denominators, it must be emphasized the followings: three-levels unit structure, fixed whole unit, necessity of common measure and recursive partitioning. An analysis of this study showed that textbooks and teachers' manuals dealt with the fact of maintaining a fixed whole unit only as being implicit. The textbooks described the reason why we need to create a common denominator in connection with the addition of similar fractions. The textbooks displayed a common denominator numerically rather than using a recursive partitioning method. Given this, it is difficult for students to connect the models and algorithms. Building on these results, this study is expected to suggest specific implications which may be taken into account in developing new instructional materials in process.

• 한국정보교육학회:학술대회논문집
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• 2004.08a
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• pp.197-205
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• 2004

요즘 과학, 수학 교과 등은 기초 교육 강조는 물론 창의성 교육에까지 관심을 가지고 있다. 7차 교육과정의 등장과 사회의 변화 흐름을 통해 '창의성'이 강조되고 있고, 교육에서도 창의성 교육이 대두되고 있다. 그러나 우리나라의 컴퓨터 교육 현황을 살펴보면 창의성과는 거리가 멀 뿐만 아니라, 다른 교과를 배우는데 도움을 주는 교과로서의 역할만을 하고 있다. 또한 컴퓨터 활용 교육이 이루어짐에 따라 저학년에서 고학년까지 유사한 내용의 교육을 반복해서 받는 경우가 생기고, 특히 5, 6학년은 실과 시간과 재량 시간의 교육 내용이 서로 중복되어 교육 효율이 떨어지고 있다. 이에 본 연구에서는 교육의 기초를 다지는 시기인 초등학교에서부터 창의적인 컴퓨터 교육이 이루어질 수 있도록 하고자 하며 이를 위해 초등학교 수준에 맞는 프로그래밍 관련 교육을 살펴보고, 초등 컴퓨터 창의성 향상 교육을 뒷받침할 수 있는 프로그래밍 관련 교재 개발 방안을 제안한다.

• Education of Primary School Mathematics
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• v.15 no.2
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• pp.147-158
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• 2012

In this paper we introduced the reflection cluster problems. They are not well known in Korea education field. We used two reflection cluster problems and analysed the responses of the gifted students. Finally, we asked how they felt about reflection cluster problems. The results of this paper will help to make new assessment items and develop new programs for the gifted education.

• Communications of Mathematical Education
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• v.8
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• pp.151-164
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• 1999

우리의 경우 학교수학에서 문제해결이 강조된지도 20여년이 넘었으나 아직도 수학을 혐오하는 학생들이 적지 않은 것 같다. 이러한 우리의 수학교육의 문제점은 여러 가지 측면에서 접근할 수 있으나 본 연구에서는 문제해결의 관점에서 접근하고자 한다. 먼저 수학학습평가와 사회에서의 평가를 문제해결의 관점에서 비교하고, 또 수학과 교육과정과 교과서의 구성내용과 체제를 문제해결의 관점에서 구체적인 예제를 통하여 조사한다. 나아가 최근의 구성주의의 관점에서 수학수업에서 계산기의 도입 가능성을 살펴본다.

• Journal for History of Mathematics
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• v.18 no.2
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• pp.43-54
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• 2005

The aims of the study were to analyze the contents of elementary mathematics curriculum in order to help students to have ideas about the history of mathematics and to apply the ideas to develop their knowledge of mathematicians or mathematical history into the lesson ideas for preservice elementary teachers and elementary students. As a result, many ideas of mathematical connection into the history of mathematics are reviewed, and posters about Pythagoras and Pascal are designed to help students to reinvent the idea of triangular numbers and square numbers.

• Journal of Educational Research in Mathematics
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• v.19 no.1
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• pp.81-98
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• 2009

This study analyzed the types of quantitative reasoning and the characteristics of representation in order to figure out the characteristics of quantitative reasoning of the sixth graders. Three students who used quantitative reasoning in solving problems were interviewed in depth. Results showed that the three students used two types of quantitative reasoning, that is difference reasoning and multiplicative reasoning. They used qualitatively different quantitative reasoning, which had a great impact on their problem-solving strategy. Students used symbolic, linguistic and visual representations. Particularly, they used visual representations to represent quantities and relations between quantities included in the problem situation, and to deduce a new relation between quantities. This result implies that visual representation plays a prominent role in quantitative reasoning. This paper included several implications on quantitative reasoning and quantitative approach related to early algebra education.