• Communications of Mathematical Education
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• v.14
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• pp.297-326
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• 2001

중학교 수학교과서에는 보조선을 이용하여 해결하는 문제가 많이 제시되고 있다. 그러나 학생들에게는 앞서 배운 성질을 직접적으로 적용한 보조선만이 제시되고 있어서 스스로 보조선을 생각해보거나 이를 통해 추론해보는 경험을 하지 못하고 있다. 그러므로, 본 연구에서는 교과서에서 제시되는 보조선 이외에 다양한 보조선을 이용한 풀이를 제시하고자 한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.10a
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• pp.873-875
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• 2013

정보기술 발전에 따라 정보 활용 및 처리 역량이 상승하면서 교육 환경의 지능화, 네트워크화로 기술간, 서비스 간 융 복합을 통한 다양한 학습 내용 및 방법이 출현하였으며, 최근 e-러닝 산업에서 스마트기기 보급 확산과 상황 적응적이고 자기 주도적 학습에 대한 소비자의 니즈가 증가하면서 새로운 형태의 교육시스템인 스마트러닝이 부각되고 있다. 이러한 교육 패러다임의 변화에 따라 기존의 교육 콘텐츠를 스마트기기에 적용하기 위해서는 콘텐츠 및 솔루션 구조의 개선이 요구되며, 또한 서비스 제공의 측면에서 다양한 교육 콘텐츠 연동과 교육 서비스 융합을 위한 표준 플랫폼 적용이 필요하다. 이에 본 논문에서는 JVM 환경의 PC 인터페이스를 통해 ePub 표준의 교육용 멀티미디어 콘텐츠 제작기능과 기존 서책형 파일 포맷의 자료 정보를 응용하기 위한 정보변환 모듈, 스마트 기기용 ePub 전자책 뷰어를 포함하는 통합 솔루션 소프트웨어인 ePub Solution을 설계하였다.

• Communications of Mathematical Education
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• v.33 no.4
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• pp.471-488
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• 2019

This paper aims to examine how mathematical history is used in $ textbooks according to the 2015-Revised Curriculum. We analyze the distribution and characteristics of making use of the mathematical history in the nine textbooks, using the framework suggested by Jankvist (2009) on the whys and hows of using historical tasks. First, the tasks related to mathematical history in the textbooks are mostly used as an affective tool, while few tasks are used as a cognitive tool. Second, most of the historical tasks of the type of an affective tool are introducing the anecdotes of mathematicians or in the history of mathematics, and only one case is trying to show human nature of mathematics by illuminating the difficulties mathematicians were faced with. Third, all the mathematical history tasks used as affective tools and goals are illumination materials, while only two out of the ten tasks in the category of a cognitive tool are illumination materials, yet eight others are modular ones. Considering the importance and value of using mathematical history in the math education, this paper recommends that more modular materials on mathematical history tasks in the category of cognitive tools and goals should be developed and their deployment in the textbooks or courses should be promoted. $

• 한국정보교육학회:학술대회논문집
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• 2010.01a
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• pp.263-268
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• 2010

다양한 사회의 문제를 여러 각도에서 담고 있는 신문은 교과서의 한계를 보완하고자 하고 다양한 교수학습방법을 필요로 하는 교육계의 요구와 결합하며 NIE학습을 등장시켰다. 정보통신기술의 발달과 시대적 요구에 의해 종이 신문은 인터넷 신문으로 변화하였고, NIE학습은 정보통신기술의 인프라 기반이 완비된 학교, 가정에서 지식정보화 사회의 급변하는 환경 변화에 능동적으로 대응해 나갈 수 있는 창의적이고 전문적인 인적자원의 육성을 목적으로 하는 이러닝(e-learning)의 학습방법과 결합하여 e-NIE로 발전하였다. e-NIE학습이 이루어지기 위한 필요조건을 알아보고, 기존의 NIE학습이 가지고 있던 장점을 살리면서 이러닝의 환경 속에서 보다 효과적으로 활용할 수 있는 e-NIE의 학습 활동 종류를 4가지 영역으로 나누어 각 영역의 활동을 구체적으로 제시해 보았다.

• Communications of Mathematical Education
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• v.31 no.2
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• pp.139-152
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• 2017

In this paper, we examine how secondary school mathematics textbooks on calculus introduce the history of calculus. In order to identify the problem, we consider the Babylonian integration by trapezoidal rule, which was made to calculate the location of Jupiter in 350-50 B.C., and the integration by the method of the rotating plate of ibn al-Haytham in Egypt, about 1000 years. In conclusion, our secondary school mathematics textbooks describe Newton and Leibniz as inventing calculus and place their roots in ancient Greece. The origin of the calculus is in Babylonia and the Faṭimah Dynasty (909-1171) (Egypt) and it is desirable that the calculus is developed in Europe after the development of the power series in India, and that the value of Asia Africa is introduced in the textbooks.

• Education of Primary School Mathematics
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• v.19 no.1
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• pp.1-18
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• 2016

Patterns are of great significance to develop algebraic thinking of elementary students. This study analyzed teaching methods of patterns in current elementary mathematics textbook series in terms of three main activities related to pattern generalization (i.e., analyzing the structure of patterns, investigating the relationship between two variables, and reasoning and representing the generalized rules). The results of this study showed that such activities to analyze the structure of patterns are not explicitly considered in the textbooks, whereas those to explore the relationship between two variables in a pattern are emphasized throughout all grade levels using function table. The activities to reason and represent the generalized rules of patterns are dealt in a way both for lower grade students to use informal representations and for upper grade students to employ formal representations with expressions or symbols. The results of this study also illustrated that patterns in the textbooks are treated rather as a separate strand than as something connected to other content strands. This paper closes with several implications to teach patterns in a way to foster early algebraic thinking of elementary school students.

• Communications of Mathematical Education
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• v.33 no.2
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• pp.105-122
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• 2019

In Korean textbooks, by T(x,y) = (x+a, y+b) where a and b are horizontal and vertical changes respectively, an arbitrary point on the original figure f(x, y) = 0 has been expressed as a point (x, y) and a point on a translated figure f(x-a, y-b) = 0 has been expressed as a point (x', y'). If an arbitrary point on a figure f(x, y) = 0 is expressed as a point (x, y), then a point (x, y) and a figure f(x, y) = 0 are different targets but the same characters are used. In this following study, there were found that the expressions in these textbooks were stuck for more than 50 years, so students' thoughts were stiff. And therefore these are a need to be improved so that those things are studied as follows. First, inducing a formula, what are the students' responses like when were expressed differently from textbooks? Second, based on the results reviewed, how will the expressions of the textbook be revised? Third, how do the students respond to the modified expressions? As the result, a point on the original figure were expressed differently from textbooks and a point on a translated figure was put as a point (x, y), and about it, all of the students surveyed said that this improved expressions made in the study were easier.

• Journal of the Korea Fashion and Costume Design Association
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• v.16 no.4
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• pp.137-156
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• 2014

This study focuses on the middle school textbook Technology Home Economics 2, revised in 2009, and aims to analyze the clothing-related contents within the Technology and Home Economics curriculum. All Korean elementary, middle and high school curricula have evolved through a number of changes and repeated revisions from their first versions, and reached their current seventh revised edition in 2009. Over this process, subjects connected to home economics have formed the following structure: Practical Courses in elementary school (5thand6thgrade)and Technology and Home Economics in middle and high school. The curriculum contents of the subjects Technology and Home Economics are divided into Development and Family, Clothing, Dietary Life, Habitation, Home Management and Consumption. Each curriculum teaches the students about its respective contents, e.g. Clothing brings the students in contact with clothing-related matters. Curricula and education methods help students find their own interests during middle and high school. Their school studies determine what majors they are seeking to choose in college and university. There are diverse university programs in Korea that are related to clothing. The above-mentioned textbook deals with clothing in the chapter Eco-friendly Clothing and Mending Habits. The results of this analysis shall help the development of the constantly changing textbook curricula, and furthermore become a reference to middle and high school students who aspire a practical and creative clothing education.

• Communications of Mathematical Education
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• v.23 no.3
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• pp.803-822
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• 2009

Creativity is emerging as one of the key components in every areas. In mathematics education, creativity or mathematical creativity is emphasized even though the definition of the term is inconsistence among every research. The purpose of this research was to identify the nature of mathematical creativity and provide the ways of strengthening it in the mathematics classroom. For this, students' mathematical strategies and problems in the elementary mathematics textbook were analyzed. The results showed that mathematically gifted students used a limited strategies and the problems in the textbooks were too simple to stimulate students' mathematical creativity. For the enhancement of students' mathematical creativity, we need to develop mathematically rich tasks and refine teacher education programs.

• Journal of Engineering Education Research
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• v.12 no.1
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• pp.73-81
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• 2009

This paper discusses the changing roles of tutors when engaging with e-learning of engineering basic design courses. Understanding the importance of these roles and identifying necessary tutoring skills are the two main keys to the success of e-learning solutions. Since online tutors play a critical role in e-learning, they must be equipped with an appropriate set of skills and attributes. The roles of e-tutors involve the social, organizational, intellectual, and technical tasks.