• Journal of Elementary Mathematics Education in Korea
• /
• v.17 no.3
• /
• pp.431-455
• /
• 2013

In this thesis, I classified various meanings of fraction into two categories, i.e concept(rate, operator, division) and model(whole-part, measurement, allotment), and surveyed appearances which is shown in Korea elementary mathematics textbook. Based on this results, I derived several implications on learning-teaching of fraction in elementary education. Firstly, we have to pursuit a unified formation of fraction concept through a complementary advantage of various concepts and models Secondly, by clarifying the time which concepts and models of fraction are imported, we have to overcome a ambiguity or tacit usage of that. Thirdly, the present Korea's textbook need to be improved in usage of measurement model. It must be defined more explicitly and must be used in explanation of multiplication and division algorithm of fraction.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2014.01a
• /
• pp.413-414
• /
• 2014

최근 스마트기기 보급의 확산과 이러닝 환경의 고도화로 이러닝 산업의 패러디임이 변화하면서 스마트 디바이스를 통한 학습형태의 스마트러닝이 주목받고 있다. 이처럼 스마트러닝이 부각되면서 기존의 이러닝 콘텐츠를 스마트 디바이스 환경에서도 제공 받고자 하는 사용자들의 요구가 증가하고 있지만 현재 기존 PC기반으로 구현된 이러닝 콘텐츠를 스마트기기에 적용하는데 있어 다양한 문제가 발생하고 있다. 특히 가장 근본적인 문제는 표준에 기인한다고 할 수 있으며 이를 해결하기 위해서는 콘텐츠에 대한 표준화가 필수적인 요소로 작용한다. 이에 본 논문에서는 최근 국내에서 전자책 및 디지털교과서 개발에 표준으로 자리잡고 있는 EPUB 3.0을 준용하여 기존 이러닝 콘텐츠의 데이터 포맷을 변경하고 표준화된 형태로 다양한 스마트 디바이스에 적용이 가능한 디지털교과서 솔루션을 설계하였다.

• Communications of Mathematical Education
• /
• v.30 no.3
• /
• pp.295-308
• /
• 2016

In order to determine the message that is communicated to students about people who use math, this study analyzes contexts, human presence in particular, used in problems presented in a U. S. high school mathematics textbook. A framework was developed to analyze the human presence and was used to determine both the degree to which humans are present in the curriculum as well as characteristics of the present humans. One outcome of this study is the framework itself which can be used to analyze the human presence in any mathematics curriculum. Other outcomes include the determination that the particular mathematics textbook under study contains an overwhelming lack of humans, a surprising lack of named humans, and a disappointing presence of humans in math-related careers. These findings raise concerning questions about the message that is communicated to students about the usefulness of school mathematics and missing a valuable opportunity to inspire students to pursue degrees in mathematics. Additionally, it is hoped that these findings would inform the work of the Korean mathematics education communities on the textbook development.

• The Journal of the Korea Contents Association
• /
• v.10 no.2
• /
• pp.1-13
• /
• 2010

The purpose of this experimental study is to find out the effect of augmented reality contents based instruction on academic achievement, interest and flow of learning. The subjects were 142 students of five classes, sampled from 6th graders of an elementary school. Three classes(86 students) were taught by augmented reality based instruction and the other two classes(56 students) were taught by textbook based instruction for 2 weeks. The experimental design of the study was the pretest-posttest control group design. The results are summarized as follows: First, there is a significant difference in academic achievement between two groups. Augmented reality based instruction group accomplished higher achievement than textbook based instruction group. Second, there is no significant difference in general interest of learning between two groups. But in the interest of lessons taken by students themselves, augmented reality based instruction is more effective than textbook based instruction. Finally, there is a significant difference in learning flow between two groups. Augmented reality based instruction group showed higher learning flow than textbook based instruction group.

• Communications of Mathematical Education
• /
• v.20 no.2 s.26
• /
• pp.147-177
• /
• 2006

The 7th curriculum sets a basic direction based on learner centered teaching, with the aim of allowing students to develop their mathematical ability. Teachers' manuals are provided to help teachers fallow the basic direction and achieve the curriculum aims, but in practice they are not always helpful. Therefore, we reconstructed parts of a teachers' manual. This involved analyzing the contents of units 6, 7 and 8 of the elementary mathematics textbook 4 na to identify and outline the problems; introducing more detailed teaching methods and activities; and developing teaching learning materials. We tested the new version in several real classes and analysed the responses 6f teachers and students to examine the possibility of its practical use. The results suggest that the reconstructed version of the teachers' manual for units 6, 7 and 8 of textbook 4 na is of greater practical utility.

• Communications of Mathematical Education
• /
• v.27 no.3
• /
• pp.321-339
• /
• 2013

This study is basic research about actualizing mathematical teaching and learning based on storytelling that is raised for reforming school mathematics education. We have developed mathematics textbook model for 2nd grade in middle school based on storytelling. It was applied in the middle school classroom and the results were analyzed. In order to develop the mathematics textbook model, the procedures and methods of development were extracted from the literature. And mathematics textbook model was developed in accordance with the process and methods. To apply it in school 20 hours of instruction were carried out. For the analysis of the results, we conducted a questionnaire survey, the teachers' interview, the affective test and math anxiety test. Through the results of this study, we will be able to check the possibility of storytelling in mathematics class. And it will be also the foundation of mathematics teaching and learning based on storytelling in middle school.

• Communications of Mathematical Education
• /
• v.24 no.1
• /
• pp.1-27
• /
• 2010

This study intends to provide implications about sluggish use of calculators in our case by analyzing the math textbook of U.S. Macmillan/McGraw-Hill along with the tendency of paying more attention to math class using technologies. From the results of analysis, this textbook deals with various methods over around 3.3% of all pages, using calculators across all grades from 1st to 6th grade. In particular, it offers guidance into three types such as 'Choose a Computation Method', 'You can also use a calculator.', and 'TECHNOLOGY LINK', while particularly it is impressive in the perspective of using calculators as one of calculation strategies. And case studies of usage in textbooks describe 8 different perspectives as an example-represent; solve problems or equations; develope or demonstrate conceptual understanding; analyze; compute or estimate; describe, explain or justify; choose appropriate calculation method; determine a calculated answer's reasonableness. Reflecting on the fact that we still use calculators in a passive way, there are considerable implications to us.

• Proceedings of the Korean Information Science Society Conference
• /
• 2010.06b
• /
• pp.241-244
• /
• 2010

최근 주목을 받고 있는 디지털교과서를 위해 제안되었던 대부분의 연구 결과는 플래시 기반으로 구성되거나, 전용 클라이언트를 설치해야 하는 등 교과서의 본질에 충실하지 못한 문제를 가지고 있었다. 본 논문에서는 교과서의 본질에 충실하고, 학교에서는 물론이고 집에서도 사용 가능한 e-교과서 구현을 위해 전자책 표준 가운데 전 세계적으로 가장 널리 사용 중인 e-Pub 표준을 적용하고자 하였다. XML 기반의 e-Pub 표준 적용을 위해 초등학교 국어, 영어, 수학 교과서를 분석하였으며, 과목 별로 상이한 구조 표현을 위해 최소한의 요소(element)를 정의함으로써, 저자 별, 과목 별 구조적 특성을 자유롭게 반영할 수 있도록 하였다.

• Communications of Mathematical Education
• /
• v.31 no.3
• /
• pp.331-347
• /
• 2017

The purpose of this study is to develop a sample chapter of mathematics textbook at the first middle school according to the model of supporting learners' self-directed learning. The self-directed learning is a learning strategy to develop learner's ability to solve unstructured problems by himself or herself. Basically, the textbook should included learning objectives distinctively. Second textbook should consist of some appropriate method for learners to learn content. Third, it suggests some plans to utilize learning strategies of this model effectively when authors or developers develop textbooks in future. Based on those condition, it is also requested that the sample chapter of the textbook be develop in order to study interestingly as well as to implement self-directed study, and content materials using mixed diverse subjects would be included in the chapter. Furthermore, the sample chapter which is suitable to the semester of managing self-directed learning middle school would be developed. For this purpose, in this study the 'Plane shapes' was selected dealt with in the first middle school. The sample chapter is developed at first by the researchers and then revised and completed through the checking from the professionalists two times.

• Communications of Mathematical Education
• /
• v.27 no.4
• /
• pp.547-566
• /
• 2013

Education, Science and Technology Department in January 2012, announced the advancement of mathematics education scheme. Select a textbook of storytelling method in policy by this, it is easy to understand the math, and that you can learn happily, was fabricated and spread. In this study, we selected three of the textbook that describes the set to its characteristics the application of storytelling in a textbook of mathematics 13 different middle school that will be used from March 2013. And of research that the textbook is to analyze the reflected reality of storytelling that is part of the advancement scheme of mathematics education content and direction and basic curriculum of current. View by presenting instead I is an object of the present invention. Six components of storytelling in the teaching and learning context that is proposed in the Park's study (2012) are used to analyze. Those are 'Persona', 'empathy', 'analogy', 'aesthetic experience ', 'plot' and 'time'. The data were analyzed storytelling was used to introduce the nature and mathematical concepts in math textbook based on these elements 6. That is looking at the ratio of the presence or absence of reflecting elements of storytelling on teaching and learning context that the data storytelling meets much the elements of storytelling to investigate the characteristics of each textbook. It is expected to provide the information and resources needed to develop methods and materials that can be studied to be interested in conjunction with real life mathematics as a result of this study.