• Journal of the Korean School Mathematics Society
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• v.17 no.4
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• pp.629-656
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• 2014

This study developed teaching and learning materials for an integrated education program of probability and genetics in the light of connections between mathematics and biological science. It also analysed characteristics of high school students' mathematical activities which appeared while the students took part in lessons where the developed materials were contributed in order to teach them. To achieve the aim, this study firstly specified five details for the development of the materials based on the results of previous research and extracted contents of probability and genetics which had the possibility of being taught in the integrated education program by examining the text books. After embodying the teaching materials according to the five details and the extracted contents, the researchers implemented 10 lessons by using the materials. This study elaborated some implications for a succeeding integrated education of mathematics and biological science in term of anlaysis results of features from the students' mathematical understanding and attitudes emerging in the lessons.

• The Journal of the Korea Contents Association
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• v.15 no.6
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• pp.499-508
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• 2015

The purpose of this paper is to examine the structural relationship between experience(4Es), customer commitment and behavioral intention based on experience of the theme park as a hedonic destination. To carry out this study objective, a survey targeted for theme park customers was conducted from May 10. 2014 to June 10. 2014. These data were processed using SPSS 18.0 and Structural Equation Modeling with Amos 18.0 to test proposed hypotheses. The results are summarized as followed. First, the decomposition of path analysis revealed significant positive effects on customer commitment by entertainment experience, education experience, esthetic experience. and escape experience. While, entertainment experience was shown to have the largest influence on customer commitment. Second, customer commitment had a positive effect on revisit intention and WOM. Third, experiences have an indirect influence on revisit intention and WOM through the mediation of commitment. From the findings, the theme park is necessary to plan and develop experience program for more variable and special.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2020.07a
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• pp.1-5
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• 2020

최근 MPEG-I 그룹에서는 표준화가 진행중인 몰입형 미디어(Immersive Media)에 대한 압축 성능 탐색이 이루어지고 있다. 몰입형 비디오는 다수의 시점 영상과 깊이 맵을 통한 깊이 맵 기반 이미지 렌더링(DIBR)을 바탕으로 제한적 6DoF 을 제공하고자 하는 기술이다. 현재 MIV(Model for Immersive Video) 기술에서는 바탕 시점(Basic View)과 각 시점의 고유한 영상 정보를 패치 단위로 모아둔 추가 시점(Additional View)으로 처리하는 모델을 채택하고 있다. 그 중에서 추가 시점은 일반적인 영상과는 달리 시간적/공간적 상관성이 떨어지는 분절적인 형태로 이루어져 있어 비디오 인코더에 대해 최적화가 되어 있지 않으며, 처리 방법의 특성에 따라 자기 유사적인 형태를 지니게 된다. 따라서 MIV 에서 스크린 콘텐츠 코딩 성능과 함께 화면 내 블록 카피(IBC: intra block copy) 기술에 대한 성능을 분석 결과를 제시한다. IBC 미적용 대비 최대 7.56%의 Y-PSNR BD-rate 감소가 가능함을 확인하였으며, 영상의 특성에 따라 IBC 의 선택 비율을 확인하여 추가 시점의 효율적인 압축 형태를 고찰한다.

• School Mathematics
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• v.16 no.3
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• pp.585-611
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• 2014

The purpose of this study is to understand the decision-making behavior of a mathematics teacher in science academy of Korea by applying the framework of class analysis through the theory of goal-oriented decision-making. To this end, we selected as the participant a mathematics teacher in charge of the class of basic calculus of science high school for the gifted in the metropolitan area, and observed the teacher's lesson. Based on a questionnaire derived from previous studies, we analyzed goals, orientations and resources of the teacher. Research results show that there are certain teaching routines by analyzing the behavior patterns that appear repeatedly in the teacher's lesson. Also we understand that it can be used on goals, orientations and resources of the teacher to adequately explain his teaching routine. In the present study, in particular, it was found to have a similar but partially different routines to the teaching routines shown in the study of Schoenfeld. From these findings, We can derive the implications that the theory of goal-oriented decision making can be suitably used as analytical tool for understanding the behavior of the teacher who pursue a productive interaction in mathematics lesson in Korea.

• Journal of Engineering Education Research
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• v.17 no.2
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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.

• Proceedings of the Korea Contents Association Conference
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• 2009.05a
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• pp.1061-1063
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• 2009

The study notices the value of the expressions material and method in design education as the subject of for appreciation study. The objective of the present study is, it is as follows: to understand education system and social and cultural atmosphere, diverse elements including in the value of the expressions material and method; to get an overall perspective on various aspects of life; and to develop contents for appreciation study which points to help learners perceived values.

• School Mathematics
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• v.4 no.1
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• pp.49-62
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• 2002

developed by solving practical problems and gradually formalized and abstracted. But school mathematics seemed to stress the formalized and abstracted mathematics. The same is the case with calculus. In particular, it appeared extremely in teaching of calculus. It caused hindrance of learning and indeed, many students had difficulties in teaming of calculus. Therefore this study investigates the various approaches of calculus teaching and the history of calculus which include approaches by Archimedes, Galileo, Newton, Leibniz and Weierstrass etc. This may offer the implication for calculus teaching and we can find the alternative on the method of calculus teaching in historico-genetic principle. Finally we suggest the direction of calculus teaching from this perspective in tile concrete.

• Journal of Engineering Education Research
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• v.24 no.4
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• pp.41-51
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• 2021

This paper is to study whether cooperative learning applying group games becomes a teaching method that can increase interest and participation in class in calculus and the effect of the number of students. To increase interest and participation in class, the researcher conducted cooperative learning by applying smartphones and various game tools to group games. The consequences of the study confirmed that students' interest and participation in the class increased regardless of their mathematics basics. Therefore, it is expected that the calculus which is difficult for students to understand will be more easily approached by cooperative learning applying group games in the future.

• Journal of Korean Home Economics Education Association
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• v.19 no.2
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• pp.103-114
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• 2007

The purpose of this study is to satisfy students in adolescent trends of school uniforms and to provide them with useful material with matching current fashions by analyzing the attitude of students toward uniform transformation in female highschool students and investigating factors influencing on behaviors of uniform transformation. The subjects of this study are 30 students in Daegu with the basic ways of investigating such as depth interview and survey. The results are as follows; First, students agree to wearing school uniforms. As the main reason for wearing school uniforms, students put emphasis on peer pressure. It is also analyzed that the figure of students' body have some influence on the attitude of students toward wearing uniform while students' appearance have no influence on the attitude of students toward wearing uniform. Second, students showed high satisfaction in school uniforms. While students are satisfied with design and color of school uniform, they are not satisfied with practicality, economic efficiency and the quality of textile. Third, the study shows most students have experience of uniform transformation as a result of depth interview about actual condition of uniform transformation. Whereas students usually wear the jacket with its width and length shortened, they tend to lengthen skirt and unstitch pleat of skirt. Fourth, there are many reasons for uniform transformation as a result of depth interview with students. Transformation for satisfying aesthetic desire tops the list, followed by transformation for matching, transformation for peer pressure. As shown by the results above, every school needs to make various efforts to satisfy students, teachers and parents by considering and using students' opinion in order to choose the better school uniforms. In addition, the study related to school uniform transformation need to have more various investigating ways to acquire more authentic results such as expanding the subjects to not only students but also teachers and parents and in-depth comparison between subjects.

• The Journal of the Korea Contents Association
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• v.10 no.4
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• pp.447-457
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• 2010

Mathematical principle is present in artwork or architectural building. It is important for middle school students to find these mathematical principles in artwork. But it is difficult to achieve original purpose of art education through student activity that only looks for mathematical principle present in artwork and architectural building. Thus, it is necessary for students to have activities to find mathematical principle in artwork for themselves through artistic experience and appreciation of artwork and to create, appreciate and express new artwork to which they apply the mathematical principle. In this article, I researched a couple of artwork or architectural buildings from this point of view in which mathematical principle is present. I also developed hypothetical teacher activities and student activities for program by providing artwork of Escher in which mathematical principle is present as an example.