• Communications for Statistical Applications and Methods
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• v.4 no.3
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• pp.807-816
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• 1997

통계학의 개념들을 직관적으로 이해시키기 위해 기존의 교재중심 강의교육에서 탈피하여 실제적인 실험을 중시하고 컴퓨터를 교육에 활용하는 방안에 국내외적으로 많은 관심이 쏠리고 있다. 본 연구에서는 통계학의 기초개념들을 쉽게 배울 수 있는 통계교육용 멀티미디어 프로그램개발의 한 단계로서 유의성검증시 필요한 p-값(유의확률)의 의미를 정확히 이해하고 적용할 수 있도록 하는 프로그램을 개발하였다. 다양한 상황을 소리, 컴퓨터그래픽, 애니메이션, 텍스트와 동영상을 통합한 멀티미디어 환경하에서 구현하여 피교육자가 흥미를 가지고 학습함으로써 단순한 계산결과가 아니라 원리와 과정을 알 수 있도록 구성하였다. 이 프로그램은 한글 windows 95가 설치된 개인용컴퓨터에서 사용할 수 있으며 internet을 통하여 web browser에서 직접 실행할 수 있다.

• Journal of the Korean Society of Radiology
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• v.11 no.2
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• pp.109-116
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• 2017

Upper gastrointestinal series is non-invasive examination, and it is useful for patients or elderly patients who have difficulty in endoscopic examination because of absence of any side effects other than temporary constipation or abdominal pain. The entire image of the gastrointestinal tract can be seen and have been widely used in the diagnosis of upper gastrointestinal diseases. However, there is a possibility that radiation dose increases due to improper movement and breath control, when examination is carried out by lack of understanding the overall inspection process for the upper gastrointestinal series. In upper gastrointestinal series to increase understanding of examination, to induce appropriate cooperation during examination, to reduce the number of retakes and shorten examination time, and to reduce dose of the subject, the procedure and precautions of the gastrointestinal test were made as a movie. We investigated the effectiveness of pre-education using the movie to reduce the inspection time, the number of re-shoots, and the reduction of exposure dose by watching the movie during the waiting time before examination. 120 patients that were selected each 20 patients aged from 30s to 80s were evaluated were evaluated for exposure dose, examination time, and the number of retakes before and after the movie training. The radiation dose, the examination time, and the number of retakes were respectively $3171.83{\mu}Gy{\cdot}m^2$ and $2931.73{\mu}Gy{\cdot}m^2$, 8.05 min, and 6.75 min, and 1.68 times and 1.22 times before and after movie training. It can be concluded that the movie training on the gastrointestinal examination influences the reduction of the examination time, the number of retakes and the reduction of the radiation dose.

• Journal of The Korean Association For Science Education
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• v.40 no.6
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• pp.595-609
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• 2020

The purpose of this study is to analyze the experiences of teachers who participated in the development of online science class videos in the context of covid-19, their perception of online science class, and the characteristics of the online science class content developed by teachers. A survey and interviews were conducted with ten elementary school teachers who made online science class videos themselves. Also the characteristics of the online science class were investigated by analyzing the online science class video produced by the participants. As a result, participants in the study recognized the lack of production time, difficulty in filming and editing, concerns over misconceptions, the problem of solving copyrights for existing materials, and the burden of external disclosure. Although it was a teacher who had experience producing online science class video contents, no research participants actively answered the merits of online science class. On the other hand, the study participants cited that the shortcomings of online science classes were that students had fewer opportunities for inquiry and lack of communication or interaction. In particular, these shortcomings were thought to have a great influence on the quality of online science classes, especially in making inquiry classes difficult. Some teachers took a negative view that online science classes could not completely replace face-to-face classes. However, if multiple teachers are presented with supplementary teaching activities that complement the content-based online teaching method, the method of combining online science classes and face-to-face classes is not. Through the analysis of the contents of the online science class, the introduction and arrangement steps of the online science class were similar to the process of the face-to-face science class, but the inquiry step and the conceptual explanation step showed a big difference from the face-to-face science class.

• The Korean Journal of Emergency Medical Services
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• v.23 no.3
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• pp.145-154
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• 2019

Purpose: This study simulates cardiac arrest situations in 360° virtual reality video clips and general video clips, and compares the correlations between educational media and experience recognition. Methods: Experimental research was carried out on a random control group (n=32) and experimental group (n=32) on March 20, 2019. Results: The groups where participants were trained with the 360° virtual reality video clips and a higher score of experience recognition (p=.047) than the group where participants were trained with the general video clips. Moreover, the subfactors of experience recognition including the sense of presence and vividness (p=.05), immersion (p<.05). experience (p<.01), fantasy factor (p<.05). and content satisfaction (p<.05) were positively correlated. Conclusion: Enhancing vividness and the sense of presence when developing virtual reality videos recorded with a 360° camera is thought to enable experience recognition without any direct interaction.

• Proceedings of The KACE
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• 2017.08a
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• pp.83-85
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• 2017

본 연구의 목적은 스마트 교육을 위한 수해양 전공학생과 일반고 학생의 스마트폰 활용 행태를 비교하고 그 차이를 살펴보았다. 이를 위해 일반고 학생과 수해양 관련 전공 계열의 학생 총 2,725명을 연구대상으로 선정하였다. 연구결과 스마트폰 활용 행태에서 수해양 전공 학생들은 음악듣기, 동영상 감상, 시간보기, SNS, 학습 이외 정보검색 등의 순으로 나타났다. 일반고 학생들은 음악듣기, 동영상감상, 학습 이외 정보검색, 시간보기, SNS 등의 순으로 나타났다. 스마트폰 활용 행태 차이의 상위 세 항목은 게임, 19세 이상사이트 이용, 웹툰에서 비교적 큰 평균차이가 나타났다.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.05a
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• pp.251-254
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• 2003

21 세기 정보화 사회에 따른 급격한 변화에 적응하기 위해 교육계에서는 학교의 학사 및 교무 업무를 전산화하는 등 여러 가지 사업을 추진하고 있으며, 제 7차 교육과정에서는 국민공통기본교과수업에 ICT(Information & Communication Technology)를 10%이상 활용하도록 하고 있다. 그러나 교육현장에서는 하드웨어 장비의 노후, 행정적인 지원 부족, 정보화 담당자의 과중한 업무, 교사들의 ICT 활용에 대한 인식 부족 등으로 인한 정보화의 문제점이 대두되고 있다. 따라서 본 연구는 Unix 학습을 위한 WBI를 구현하여 ICT 저작도구를 활용한 학습프로그램을 소개함으로써 교사들의 ICT에 대한 인식의 폭을 넓히며, Unix 교육을 통해 학생들을 재교육시키는데 목적이 있다. 이에 ICT를 활용하여 Unix 명령어에 대한 이론과 실습을 겸비한 WBI를 제작하였으며, 기존의 텍스트 위주의 학습방법과 ICT 저작도구를 이용하여 음성, 판서 등의 부가기능을 제공하는 동영상 학습프로그램을 제시하였다.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.24 no.2
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• pp.282-297
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• 2019

Detection of mesoscale oceanic eddies using satellite data can utilize various ocean parameters such as sea surface temperature (SST), chlorophyll-a pigment concentration in phytoplankton, and sea level altimetry measurements. Observation methods vary for each satellite dataset, as it is obtained using different temporal and spatial resolution, and optimized data processing. Different detection results can be derived for the same oceanic eddies; therefore, fundamental research on eddy detection using satellite data is required. In this study, we used ocean color satellite data, sea level altimetry data, and infrared SST data to detect mesoscale eddies in the East Sea and compared results from different detection methods. The sea surface current field derived from the consecutive ocean color chlorophyll-a concentration images using the maximum cross correlation coefficient and the geostrophic current field obtained from the sea level altimetry data were used to detect the mesoscale eddies in the East Sea. In order to compare the eddy detection from satellite data, the results were divided into three cases as follows: 1) the eddy was detected in both the ocean color and altimeter images simultaneously; 2) the eddy was detected from ocean color and SST images, but no eddy was detected in the altimeter data; 3) the eddy was not detected in ocean color image, while the altimeter data detected the eddy. Through these three cases, we described the difficulties with satellite altimetry data and the limitations of ocean color and infrared SST data for eddy detection. It was also emphasized that study on eddy detection and related research required an in-depth understanding of the mesoscale oceanic phenomenon and the principles of satellite observation.

• Education of Primary School Mathematics
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• v.16 no.3
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• pp.315-331
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• 2013

In this study, lessons on coordinate, percentage, and factorization in prime factors were taken with TI-73 calculator for 20 elementary school students in the 5th grade math gifted class in Pohang city. Through these lessons, the researcher examined with cases how using the calculator would influenced the lessons for the gifted students, and attempted to obtain implications on using calculators as learning tools in class. Activity sheets were made for this study and a 80-minute lesson was held three times for three weeks. In order to collect data, the class was recorded on videotape, the students were interviewed, and documents used in the class were collected. Then all the data were transcribed. Data analysis was completed through several readings of transcripts and main themes were derived by classifying, comparing, and contrasting coding. As a result of the study, the calculator played a role the tool as the mediation to communicate and the challenge their solvable tasks beyond the limitation of paper and pencil environments. But, in using the calculator, there was differences in gender between boys and girls. Above all, to enter commands into the calculator resulted in obstacles for learning process.

• Journal of The Korean Association of Information Education
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• v.12 no.1
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• pp.65-75
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• 2008

With the advent of convergence environment of broadcasting and communication, IPTV has been widely used. It provides services such as information, movie contents and broadcasting with TV through super-highway information networks. The purpose of this study is to suggest its educational applications to overcome the limits existing in the education. For this goal, we sought its concept and characteristic and drew educational implications by analyzing its contents. We also suggested what-if scenarios for its educational applications, considered its possibilities in educational applications and suggested the kinds of teaching-learning utilizing it and its educational applications for the various subjects. Finally, we examined problems which were considered before its applications in the education with the classification of legal, technical and educational problems.

• The Bulletin of The Korean Astronomical Society
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• v.46 no.2
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• pp.54.1-54.1
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• 2021

천문학은 시간적·공간적 규모가 크기 때문에 학습자의 수준에 따라 공감과 이해의 정도에 차이가 크다. 2015 개정 과학과 교육과정에 따르면 초등학교 5학년부터 태양계에 대한 내용을 다루고 있다. 하지만 이를 설명하기 위한 교과서의 사진과 동영상 자료는 태양계를 명확하게 전달하기 어렵다. 이에 대한 대안으로 3D Modeling을 통한 체험 교육을 제안한다. 천문학 교과에서 3D Modeling의 적용은 학생들의 흥미, 태도의 향상 등 교육적 효과의 상승으로 이어진다. 이에 본 연구에서는 3D Modeling의 도구 중 3D 프린터와 레이저 절단기를 이용해 융합교육(STEAM) 프로그램을 개발하고 학생들에게 적용하여 창의적 문제해결능력에 미치는 영향을 알아보고자 한다. 초등학교 교육과정에 제시된 태양계 관련 학습자료를 분석하였고, 융합교육(STEAM)에서 제안하는 상황제시, 창의적 설계, 감성적 체험의 교육단계 중 '창의적 설계' 단계에 3D 프린터와 레이저 절단기를 통해 개발한 kit를 이용하여 융합교육(STEAM) 프로그램에 적용하였다. 개발된 프로그램을 형식 교육의 장에 적용하여 개발된 평가지표를 토대로 사전·사후 평가를 실시한다. 향후 3D Modeling을 초등학교 교육과정뿐만 아니라 중·고등학교 교육과정 또한 분석하여 적용한다면, 천문대중화를 위해 큰 도움이 될 수 있을 것으로 사료된다.