• Journal of Elementary Mathematics Education in Korea
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• v.19 no.4
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• pp.485-499
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• 2015

In this paper, focusing on definitions of terms related to ratio (a:b, external ratio, internal ratio, percentage, proportion, bi-ui-gap(value of a:b)), elementary school mathematics textbooks of Korea and Japan are compared. We can find significant differences between Korean and Japanese textbooks. In Korean textbook, 'bi-yul' includes both of the internal ratio and the external ratio. In Japanese textbooks, the external ratio(amount of unit size) and the internal ratio(wariai) are defined independently. And a:b is set to a subconcept of the internal ratio. In addition, a:b and percentage are presented as methods to express the internal ratio. From these results, the following four implications for developing our mathematics textbooks can be presented as conclusions. First, it is necessary to limit the ratio to mean the internal ratio. Second, it is necessary to define connotatively the ratio as the internal ratio and to set it as a prior concept of a:b. Third, it is necessary to define 1% as the internal ratio 0.01. Fourth, it is necessary to define bi-ui-gap as a number for expressing a:b, when viewing a:b as the expression method of the internal ratio.

• The Journal of the Korea Contents Association
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• v.11 no.12
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• pp.152-161
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• 2011

This study examines characteristics of sports movies between Korea and the U.S. Especially, this paper focuses on three different characteristics including structural, internal characteristics and performance of sports movies. The major results are as follows: firstly, there were similarities between two countries in terms of opening year, genre, classification but movie subjects. More specifically, movie opening years were not related to global sports events. In addition, most sports movies were mainly produced by human genre and all age movie classification. However, in terms of sports subjects, although Korean movies were constructed by baseball game, the U.S. movies were based on football game. Secondly, there were also similarities between both sports movies in terms of external characteristics such as gender difference of hero or heroine, internal story structure and their story sources. Most of sports movies have used real stories as movie story. Finally, although many of the U.S. sports movies recorded the high degree of expenditures, three movies recorded the high degree of movie consumption.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 1997.11a
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• pp.215-219
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• 1997

내적 감성상태와 표정을 연결하는 상관모형을 개발하기 위\ulcorner 기초자료로서 광범위한 얼굴표정자료를 수집하였다. 다양한 얼굴유형의 표정자료를 DB화하기 위해서는 궁극적으로 50명 이상의 인물표정 자료수집이 필요하다고 보고, 우선 영화배우 10면분의 표정자료를 수집하였다. 이를 위해 표정연기가 자연스럽다고 평가된 영화배우 10명을 선정하고, 이들이 출연한 50여편의 영화비디오에서 표정자료를 수집하였다. 한사람의 인물당 50개의 표정을 한세트로 하여 총 10명분 500가지의 표정자료수집을 완료하였다. 한사람의 인물당 50개의 표정을 한 세트로 하여 총 10명분 500가지의 표정자료수집을 완료하였다. 각각의 표정은 시작-상승-절정-하강-종료의 연속 5단계를 비율적으로 표집하여 동적정보를 포함하고 있다. 이들 자료들은 등자인물의 출연맥락이나 상황별로 분류하여 표정관련 맥락단서를 기록하였고, 후속연구를 통해 각 표정에 대응되는 내적상태를 기록할 수 있도록 DB화 하였다. 이와같이 구조화된 자료들은 표정인식과 합성의 입출력모형을 위한 기초자료로 활용될 뿐 아니라, 한국인의 얼굴 프로토타입 DB구축 및 향후 표정관련 연구의 타당성을 검증할 수 있는 Benchmarking 정보를 제공할 수 있다.

• Journal of the Korean earth science society
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• v.26 no.6
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• pp.511-523
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• 2005

The purpose of this study is to analyze the 1st and 2nd Korea Earth Science Olympiad (KESO) items, in order to find informations to enhance item quality. To do this, internal and external item classification frameworks are developed. Item difficulty (P), discrimination index (DI), correlation, and reliability are estimated by using classical test theory. Generalizability is also estimated by applying the generalizability theory. The results of item classification are as follows: (1) ‘Geology’, ‘astronomy’ and ‘data analysis and interpretation’ are dominant in content and inquiry process domain, respectively. Nearly every item has textbook context. (2) There is no difference between the preliminary and final tests in terms of their thinking skills sections. (3) As a whole, the ratio of items with pictures is high in item representation. However, multiple-choice and short answer items are more common in preliminary competition, and essay type items are found more often in final competition. The ratio of simple items is high in middle school section and preliminary competition, but composite items are dominant in high school section and final competition. The findings of item analysis are as follows: (1) In the middle school section, P is low and DI is moderate. But in the high school section, there is a considerable differences between science high schools and other high schools in general. (2) The highest correlation is reported between the scores of meteorology domain and total score in middle school, whereas in high school astronomy domain and total score show the highest correlation. (3) General high school section show the highest Cronbach $\alpha$ and generalizability. (4) General high school section show acceptable generalizability coefficient (> 0.80), but middle and science high school section should increase the number of items to reach acceptable generalizability level.

• Journal of Elementary Mathematics Education in Korea
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• v.19 no.3
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• pp.371-386
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• 2015

There has been little consensus on how to define and use the Korean mathematical terms, bi-ui-gap and bi-yul. This study compares four perspectives of bi-ui-gap and bi-yul proposed and discussed in Korean mathematics education community and examines the ways of using the terms adopted since the 6th national curriculum. Based on the analysis that previously proposed perspectives conflict each other, this study proposes as a way to synthesize different perspectives of bi-ui-gap and bi-yul by analyzing the terms in the internal and external ratio contexts. This study proposes that bi-ui-gap be used to represent 'a value of $A{\div}B$' rather than 'a value originated from a ratio A:B' or 'a fraction form ${\frac{B}{A}}$.' This study also proposes that bi-yul or bae-yul be used in the internal ratio context and a new term, such as dan-wi-yul, be created for the external ratio context.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2010.07a
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• pp.212-215
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• 2010

본 연구는 최근 침체위기를 맞고 있는 해외의 한국어방송사들의 방송서비스를 개선방안을 모색하기 위해 해외 교민들을 대상으로 방송콘텐츠 서비스의 주요 속성이 방송을 송출하는 해외 한국어방송사의 만족도에 영향을 미치는 과정을 탐색적으로 분석하였다. 본 연구에서는 해외 한국어방송사가 주로 제공하는 서비스를 크게 방송콘텐츠 자체의 완성도, 방송콘텐츠제공의 효율성, 방송콘텐츠의 공익성이라는 세 가지의 틀로 구분하였고 이러한 세가지 속성이 방송사의 만족도에 영향을 주는 주요 요인으로 설정하였다. 또한 방송사의 내적요인과 외적요인이 방송사의 만족도 직접적으로 영향을 주는 요인으로 설정하였다. 이러한 연구모형을 시청률이 낮은 집단과 높은 집단을 나누어서 비교분석함으로써 보다 해외한국어방송사에 대한 만족도 촉진을 향상시키기 위한 현실적인 대안을 제시하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2019.01a
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• pp.305-306
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• 2019

2019학년도 초등학교 5-6학년군에 2015 개정 교육과정이 전면 적용된다. 본 논문에서는 2015 개정 교육과정에 따른 실과 검정 교과서 6종 소프트웨어 교육 단원의 외적 체제를 비교 분석하였다. 단원 체제 분석 결과 모든 교과서에 공통적으로 대단원명, 대단원 차례, 중단원명, 본문텍스트, 본문삽화, 용어 설명, 단원 마무리 등이 제시되어 있었다. 단원 구성 분석 결과 소프트웨어 교육 단원은 전체 교과서 분량의 18.8~25%까지 교과서별로 다양한 비율을 차지하고 있었다. 후속 연구로는 본 논문에서 다룬 교과서의 외적 체제 뿐 아니라 내적 체제 까지를 포함하여 각 교과서의 소프트웨어 교육 단원을 전체적인 틀에서 비교 분석 할 것이다.

• Journal of The Korean Association For Science Education
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• v.36 no.1
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• pp.87-101
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• 2016

This study analyzes the content validity of descriptive tests developed for elementary schools, in order to acquire basic data to improve them. Various descriptive tests were collected and tested for differences in proportions between two-dimensional classification of educational objectives and the level of behavioral objectives. Results show that the descriptive tests developed by elementary school teachers mainly focused on "knowledge" and "understanding," and that content validity for behavioral levels to be low. Nine elementary school teachers were interviewed to understand the result. From the interviews, we found both internal and external factors that cause low content validity. The main internal factors were teachers' ability to make two-dimensional classification of educational objectives, the teachers' consideration of students' level, item level of difficulty, the ease of scoring, and path dependence. The main external factors were curriculum, parents, and administration. Based on the results, we suggested the factors related to elementary school teachers' PCK of descriptive tests.

• Journal of Engineering Education Research
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• v.14 no.4
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• pp.11-19
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• 2011

The purpose of this study was to identify learning strategies by learning style of first-year engineering students in order to find implications for teaching and learning strategies in engineering education. This study was conducted with 273 first-year students in two universities in Korea. Following were the results: First, there were Sensing learners(72.2%), Visual learners(84.6%), Reflective learners(64.8%), and Sequential learners(58.2%) and the level of learning strategies was 3.28(SD=0.38). Secondly, the finding revealed that there was only significant difference in learning strategies on Information processing dimension and Active students demonstrated higher level of learning strategies than Reflective students. To be more specific, there were significant differences in cognitive, meta-cognitive, and internal and external management. For engineering education, implications for teaching strategies in classroom and self-regulated learning strategies were discussed.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.5
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• pp.3069-3073
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• 2014

It's now time for adopting u-Health according to development of internet. It is judged that it needs to research on effect of using internet health information targeting University students who are the most sensitive of internet health information. So we analyzed effect of using internet health information according to internal and external health control materials with 300 University students. As a result, If a rate of investment to the health is high, an effect of internet health information also increases as B=.004, rate of internal health control is high, it decreases as B=-.027 and rate of external health control is high, it increases as B=.037. For a University student who has steady faith about health and can control their internal health more easily, the effect of using internet health information has decreased. And for a University student who has high inclination of external dependence about health and can control their external health more easily, the effect of using internet health information has increased. So it needs to raise credibility, accuracy and accessibility of internet health information.