• Proceedings of the Korea Database Society Conference
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• 2001.11a
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• pp.582-598
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• 2001

웹과 인터넷 관련 기술의 발달로 전통적인 교육의 한계인 시간과 공간의 제약을 벗어나, 누구나 어느 곳에서나 언제든지 교육을 받을 수 있는 사이버 교육이 많은 관심을 끌기 시작하였다. 우리나라에서도 이미 많은 사이버 대학이 등장하였으나, 이상적인 환경에서 시작한 것은 아니어서 많은 어려움과 불편함이 지적되고 있으며 교육의 효과면에서도 의심이 여지가 있다. 본 논문에서는 사이버 대학에서 강의를 하신 경험이 있는 교수들을 대상으로 사이버 교육의 문제점에 대하여 연구하고자, 교육의 주된 프로세스인 강의전달, 강의자료제작, 학생-교수간의 상호접촉, 학생평가에 대한 설문을 작성하여 이들과 교육 효과간의 회귀분석을 통한 관계 조사와 설문 문항별 빈도분석을 통하여 실태파악을 하였다. 연구결과는 이상적인 사이버 교육 환경을 조성하는데 활용될 수 있으리라 기대된다.

• Journal of the Korean Society of Earth Science Education
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• v.13 no.2
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• pp.175-185
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• 2020

The purpose of this study is to investigate the usages and problems of distance science learning and learner behavior analysis. This study established an Sixteen-weeks period of experimental treatment from March to June 2020, and the students who participated in the study formed a research group of 128 students in 2nd grade of their advanced classes who are attending the second semester of B university of education and taking courses in 'teaching research 1'. B university of education is singleness class that doesn't have compare group, so this study is constituted only study group. The results of the study were as follows. First, The students who took science learning remotely liked using the university's LMS system. Second, it was not efficient for the faculty member's scientific data presentation to operate smoothly in the online system. Third, it is necessary to set various educational platforms as a standardized platform. Looking at the pros and cons of various platforms may vary depending on the suitability of education, but if the LMS system, which is a professional teaching support method, is upgraded to meet the needs of learners, the satisfaction of higher instructors and learners will be higher.

• Journal of The Korean Association of Information Education
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• v.24 no.4
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• pp.291-300
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• 2020

Although the need for international online courses and the number of online learners has been rapidly increasing, the online class evaluation has been mostly relying on the quantitative survey analysis. So a more objective evaluation method has to be developed to more accurately assess online course satisfaction. This study highlights the benefits of using big data analysis from the bulletin board messages of online learning system as a method to evaluate the online courses. In fact, automatic classification technology is recognized as an important technology among big data analysis techniques. Our team applied this technique to evaluate the online courses. From the delphi analysis results, suggested method was concluded that the evaluation items and classification results are suitable for online course evaluation and applicable in schools or institutions. This study has confirmed that the rapidly accumulating big data analysis technology can be successfully applied to the education sector with the least change. It also diagnosed a meaningful possibility to expand the big data analysis for further application.

• Journal of the Korea Society of Computer and Information
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• v.25 no.9
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• pp.203-212
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• 2020

The purpose of this study is to analyze the perception of non-face-to-face online undergraduate lectures experienced by foreign learners, to identify problems of online lectures, and to suggest improvements. For this study, the perception of online lectures was investigated and analyzed by foreign undergraduate students who took online lectures at A and B universities. Through this, I explored the design direction, complementary measures, and direction of online lectures to be held at Korean universities in the future. As a result of this study, non-real-time lectures through E campus were recognized as advantages in that they could learn repeatedly and listen to lectures at home., Real-time lectures using Zoom were recognized as an advantage of being able to communicate between professors and learners. Both types of online lectures had many tasks and had difficulty in focusing on the lecture until the end. In the future, it was found that the amount of lecture contents and the amount of tasks should be reduced and the condition and sound quality of the lecture image should be improved. As for the evaluation method, they preferred online evaluation rather than offline evaluation, and they preferred relative evaluation rather than absolute evaluation. The results of this study were able to closely understand how learners perceive online lectures. Also, when conducting online lectures, I was able to know the points that need to be improved in the future. The results of this study are expected to contribute to the design direction of online lectures and the development of online contents at each university.

• The Journal of the Korea Contents Association
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• v.18 no.2
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• pp.468-475
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• 2018

The current system of making course evaluations mandatory in universities in Korea in order to supplement low participation levels is a major hindering factor for the validity of the evaluation results due to students' insincere responses. This study points out the problems in course evaluations that are in the form of surveys and instead proposes a sample course evaluation system that utilizes a sample mean to deduce a population mean, attempting to prove through simulation that this is statistically significant. Thus, small, medium, and large scale courses as well as cyber courses that were available in S University in the fall 2016 semester were set as the population, and each course's evaluation average grade was set as the population mean. Furthermore, we used the average grade and standard deviation of the same courses from the previous year in order to decide the sample number, the reliability level was set as 95%, and the margin of error was set as ${\pm}0.25$. As a result of carrying out a simulation using the data analysis tool R, all the courses (small scale, medium scale, large scale, and cyber) showed to have a reliability level close to 95% including the population mean, and consequently practicality of the representative sample course evaluation system was proven.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.11a
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• pp.239-242
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• 2003

본 논문에서는 학습자의 요구와 무관한 학습 컨텐츠 제공의 문제점을 알아보고, 학습자의 요구에 부합되는 강의 컨텐츠제공을 위한 방법을 제안한다. 기존의 LMS(Learning Management System)는 시간적, 공간적 제약을 받지 않고 교육이 가능하다는 온라인 교육의 장점에도 불구하고 학습자의 요구와 수준에 무관하게 학습과 관련한 컨텐츠들이 획일적으로 구성됨으로써, 학습자의 요구를 만족시키지 못하고있다. 이에 본 논문에서는 학습에 필요한 강의 컨텐츠 생성 시 효율성과 재사용성을 높인 SCORM을 기반으로 하여 학습 컨텐츠를 생성하고, 평가된 학습자의 학습 수준을 통해서, 학습자의 수준에 맞는 강의 컨텐츠를 제공하는 학습자 수준별 학습 시스템(Learner Level e-Learning System)을 구현하였다. 이를 통해 컨텐츠 저작자는 학습 객체의 재사용이 가능하며, 학습자는 요구에 충족하는 강의를 수강하는 것이 가능하다.

• Communications of Mathematical Education
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• v.23 no.2
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• pp.279-296
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• 2009

In this paper, we utilize student survey, scholastic level assessment and class evaluation in order to address the problems and find out the improvements on operating the subjects in the university-level program(UP), focusing on the Calculus I. We also propose effective management strategies and learning methods for the UP classes consisting of excellent high school students.

• Journal of Engineering Education Research
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• v.9 no.1
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• pp.75-88
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• 2006

This paper reviews the general education curriculum in engineering colleges which are accredited or prepare to be accredited in Korea. And it researches the relation of the learning outcome of general education and course assessment. Most of engineering colleges usually operate core curriculum. They provided engineering students few specific general education courses if anything. Engineering students evaluated the outcome of the general education courses less than major courses. It is necessary to develop new general education courses for engineer like as the management for engineering students or leadership program Also the faculties teaching the general education courses need to develop new learning method and materials, which help students to achieve soft skills.

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2013.05a
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• pp.87-87
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• 2013

복합조직강의 미세조직제어를 통한 자동차용 고강도 강판재의 개발이 주요 연구과제로 있다. 하지만 고강도화에 따라 수소에 의한 지연파괴의 문제점이 있어, 이를 규명하고 해결하기 위한 많은 연구가 함께 이루어지고 있다. 본 연구에서는 연구, 개발되고 있는 복합조직강 중 DP강과 TRIP강의 수소취성에 미치는 미세조직의 영향을 분석하고, 수소주입조건에 따른 수소취성 및 지연파괴 거동에 대하여 조사하고자 하였다. 이를 위해 음극전기분해법을 이용, 주입수소량을 달리하여 주입수소가 복합조직강의 지연파괴에 미치는 영향을 분석하였다. Hydrogen determinator를 통해 시편 내 수소량을 측정하였고, 소형펀치시험에 의한 기계적물성 변화를 조사하였다. 또한 파단부위의 넓이와 깊이를 비교측정하였고, 파단면을 SEM으로 관찰하여 수소지연파괴 거동을 평가하고자 하였다.

• Proceedings of the Korea Multimedia Society Conference
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• 2004.05a
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• pp.374-377
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• 2004

동영상 강의는 시간이나 장소 등에 크게 구애받지 않고 인터넷을 통하여 쉽게 이용할 수 있는 간편한 학습방법중의 하나이다. 그러나 학습자의 학습자세와 태도에 따라 학습효과는 매우 다를 수 있는 문제점을 가지고 있다. 본 논문에서는 입력영상으로부터 학습자의 얼굴정보를 입력받아 주기적으로 탐색하여 학습자의 강의에 대한 집중도와 충실도를 평가하는 시스템을 제안하고자 하였다. 먼저 입력영상의 분할된 중심영역으로부터 학습자의 얼굴을 포함하는 신체정보를 입력받아 사용하였으며, 빠르고 효율적인 얼굴영역의 추출을 위하여 피부색상(skin-color)정보와 얼굴의 지역적 특성을 이용하는 방법을 사용하였다. 또한 주기적으로 입력되는 영상의 빠른 얼굴추적을 위하여 설정된 영역들로부터 구성되는 블록들의 위치와 구성정보를 이용한 블록탐색 기법을 사용하였다.