초등 컴퓨터 교육과정 국제 비교 연구

한정혜,김동호,Han, Jeong-Hye,Kim, Dong-Ho 한국정보교육학회 2004 정보교육학회논문지 Vol.8 No.4

In this paper, we studied the elementary computer education curriculum comparatively with some of OECD countries. We have found some problems in our curriculum and suggested the effective elementary computer education curriculum.

효과적인 아동용 WBI를 위한 한글 타이포그래피의 가해성 분석과 활용

한정혜,김용대,Han, Jeong-Hye,Kim, Yong-Dae 한국정보교육학회 2002 정보교육학회논문지 Vol.6 No.3

Looking at multimedia education contents from a design point of view, the instructor's design model may differ from the child's understanding model due to gap of the instructor's and child's knowledge. This fact implies it impacts the effectiveness of the education contents. The learning efficiency of Korean typography in WBI for children depends on the font-family, line space, font-size, the age of user, the output device such as the monitor, and other various factors. In this paper, we measured and analyzed on readability of Korean typography in WBI for children by reading speed method. The results of experiments show that readability depends on the font-family of typography, age(grade), and sex of children. In detail, "Goolymche" has the shortest time to be read, and girl and the highest grade students of elementary school have shorter time than boy and the lower grade students. Moreover, we consider the elegance of typography in WBI for holding children's interests because they prefer "Yopseoche". We provide some CSSs in WBI for children based on the experimental results, to used in school fields. 멀티미디어 교육용 컨텐츠의 디자인적 측면에서 아동과 교사간에는 지식과 감성이 서로 다르기 때문에 교사의 설계모델이 아동의 인지모델과 다를 수 있고 이는 곧 교육용 컨텐츠의 효과에 영향을 미친다. 한글 타이포그래피가 위주인 교육용 컨텐츠의 학습효과는 글꼴, 줄 간격, 글꼴크기, 사용자 나이뿐만 아니라, 웹기반 컨텐츠의 경우에는 모니터라는 출력장치 등 여러 요인에 의해 영향을 받을 수 있다. 따라서 본 연구에서는 교육용 컨텐츠의 중요한 부분이라 할 수 있는 타이포그래피의 정보 전달속도에 대한 가해성을 중심으로, 효과적인 아동용 WBI를 위한 타이포그래피에 대하여 독서속도 측정법을 이용하여 실험연구를 실시하였다. 아동용 WBI 타이포그래피의 가해성에 유의한 영향을 미치는 요인으로는 글꼴, 나이(학년), 성별이었는데, 산세리프체 종류와 고학년, 여자아동이 높은 가해성을 갖는 것으로 나타났다. 보다 아동에게 효과적인 WBI를 위하여, 산세리프체 중 "굴림체"외에도 아동에게 좋은 가해성과 심미적으로도 선호되는 탈네모틀 글꼴 "엽서체"를 고려한 타이포그래피를 CSS로 제시함으로써 초등현장에서 활용할 수 있도록 하였다.

교사 보조 로봇의 교육적 활용

한정혜,김동호,Han, Jeong-Hye,Kim, Dong-Ho 한국정보교육학회 2006 정보교육학회논문지 Vol.10 No.1

Robots evolve from tools to information media since they generates information by interacting with human. As studies on robot-aided education are still in a starting phase, attempts need to be made to use robots for educational purposes and to investigate the effects of the use. It was showed that robot-aided learning was friendlier than other media assisted learning, and especially effective for motivating children. We developed the prototype robot Jenny that can help teachers as a educational media in class(i.e. as a T.A. robot, it can present robot contents on its chest to screen and explain about it when teacher asks). is a schoolmate for 5th or 6th grade children or an elder schoolmate for the rest. We performed the field trial at an elementary school. We carried out 9 classes for three subjects(english, korean, music) with -students in $4th{\sim}5th$ grade. They thought Jenny who was 13 years old as an elder schoolmate in 6th grade. Also, a significant difference was found in the interest and concentration of experimental groups from controlled groups.

초등정규교육과정에서 STEAM을 위한 로봇활용교육

한정혜,박주현,조미헌,박일우,김진오,Han, Jeong-Hye,Park, Ju-Hyun,Jo, Mi-Heon,Park, Ill-Woo,Kim, Jin-Oh 한국정보교육학회 2011 정보교육학회논문지 Vol.15 No.3

최근 과학예술융합교육(Science, Technology, Engineering, Art and Mathematics; STEAM)의 중요성이 증대되고 있으며, 로봇활용교육도 좋은 대안으로 고려되고 있다. 현재 대부분의 초등 로봇활용교육은 방과후교실로 운영되고 있는데, 주로 과학과 로봇에 관심이 많은 남학생들을 중심으로 이루어지고 있다. 본 논문에서는 먼저 초등학생들이 로봇을 활용하여 STEAM에 대한 흥미를 유발하게 되는지를 살펴보고자 하였다. 로봇활용의 범주를 5가지(추상적 이해형, 구조중심형, 운동중심형, 지능중심형, 가치지향형)로 나눈 후, 초등정규교육과정을 분석하여 적용 가능한 모든 교과와 단원을 추출하였다. 그리고 추출된 단원에 대하여 정규수업시간 내에 수행이 가능한 로봇을 활용하는 교안을 개발하고, 5개월간 적용하였다. 분석 결과, 로봇활용교육이 STEAM에 대한 흥미를 유의미하게 증진시키는 것으로 나타났으며, 특히 여학생의 경우가 더 두드러졌다. 이와 더불어서, 정규 수업에서 로봇활용교육을 운영하는 데 있어서 당면하게 되는 문제점들에 대해 논하고, 향후 STEAM을 위한 로봇활용교육과 관련한 제언을 제시하였다. 'Learning with a robot' is now considered as one of the best candidates for STEAM education, which is recently growing its importance. Most of the 'learning with a robot' programs in elementary schools serve as afterschool classes. The students participating in the afterschool classes are mostly boys who are interested in science and robots. This paper mainly concerns that a robot can be helpful for improving students' interest in STEAM education. We divided the robot utilizable aspects into 5 areas with educational points of view; abstract concept understanding type, structure-oriented type, athletics-oriented type, intelligence-oriented type and value-orientated type. We extracted all robot utilizable subjects and units from elementary school curriculum, and developed lesson plans which can be applicable to regular classes. And we also verified them by applying into an elementary school for 5 months. As the result of the analysis, we can conclude that 'learning with a robot' can encourage students' interest in STEAM, and it is more effective for girls than boys. Finally, we discuss problems that teachers may face in using a robot for regular classes, and make suggestions about the use of a robot for STEAM education.

트래픽 관리를 위한 부본서버 성능평가 및 분배 알고리즘

한정혜,이경희,Han, Jeoong-Hye,Lee, Kyung-Hee 한국정보처리학회 2003 정보처리학회논문지 C : 정보통신,정보보안 Vol.10 No.1

최근 들어 다수의 클라이언트에게 컨텐츠를 안정적으로 서비스하기 위하여 여러 부본서버를 운영한다. 이 부본서버 중 시공간적으로 다양한 환경으로부터 요청된 클라이언트의 요구를 가장 효과적으로 처리할 수 있는 서버를 선택하기 위한 서버 선택 알고리즘이 여러 분야에서 활발히 연구되고 있다. 본 논문은 비교적 큰 용량의 컨텐츠를 서비스하는 부본서버 간의 하드웨어 성능 차이가 큰 경우에 QoS를 향상시킬 수 있는 방법을 제안하였다. 또, 부본서버의 하드웨어 성능평가 알고리즘과 HTTP 응답시간의 평균과 편차를 동시에 고려한 알고리즘을 제안하였다. 그리고 시뮬레이션을 통하여 일반적인 경우에 가장 성능이 우수한 것으로 알려진 HTTP 반응시간 평균과 편차에 근거한 부본선택 알고리즘이 비교적 큰 사이즈의 컨텐츠 서비스할 경우와 부본 서버들간의 하드웨어 성능 차가 큰 경우에 더 나은 성능을 보인다는 것을 확인하였다. Most of the existing algorithms try to disseminate the multimedia contents of internet service provider (ISP), without taking into account characteristics and capacities of duplicated servers. However, they are less reliable without prior information on capacities of duplicated servers. In this paper we propose two algorithms, performance rating algorithm of hardware and capacity algorithm, inspired by the need of improving QoS of delivering multimedia contents without incurring long access delays when the capacities of duplicated servers are significantly different and clients locate in a fixed geographical domain Our simulation results show that they are better than HTTP response time algorithm when the multimedia contents are large and quite different from performances between duplicated servers.

상관계수의 변동을 탐지하기 위한 EWMA 관리도

한정혜,조중재 ( Jeong Hye Han,Joong Jae Cho ) 한국품질경영학회 1998 품질경영학회지 Vol.26 No.1

십이지장 유두 선종의 내시경 유두 절제술 후 뒤늦게 발생한 급성 췌장염

한정혜 ( Jeung Hye Han ),김명환 ( Myung Hwan Kim ),박수정 ( Soo Jung Park ),이상아 ( Sang Ah Lee ),이상수 ( Sang Su Lee ),서동완 ( Dong Wan Seo ),이성구 ( Sung Koo Lee ) 대한내과학회 2008 대한내과학회지 Vol.74 No.1S

인공지능 스피커의 교육적 활용에서의 윤리적 딜레마

한정혜 ( Jeonghye Han ),김종욱 ( Jong-wook Kim ) 한국창의정보문화학회 2021 창의정보문화연구 Vol.7 No.1

인공지능 국가전략이 발표되면서 인공지능의 교육에 대한 다양한 정책들이 제안되고 있고 교사를 대상으로 하는 인공지능융합교육도 활발히 추진되고 있다. 또한 인공지능 스피커는 각 가정에 판매 및 보급이 되고 있는 실정이고, 인공지능 스피커의 교육적 활용 현장연구들이 시작되고 있다. 이 연구에서는 인공지능 윤리에서 인공지능 스피커가 발생시킬 논란이 될 문제들을 살펴보고, 가정이나 학교에서 인공지능 스피커가 활용될 때 발생할 수 있는 윤리적 딜레마를 도출해보고자 한다. 이 딜레마는 인공지능 스피커에 대한 집단별 도덕적 판단력 수준 측정 MCT(Moral Competence Test)에 활용할 수 있을 것이다. With the announcement of the AI national strategy, various policies for AI education are being proposed, and AI convergence education for teachers is actively being promoted. In addition, AI speakers are being sold and distributed to each home, and field studies of educational use of AI speakers have just started. This study examines the controversial problems that AI speakers may cause in AI ethics, and attempts to derive an ethical dilemma that may arise when AI speakers are used at home or at school. This dilemma can be used in the moral competence test (MCT), which measures the level of moral judgment for each group of artificial intelligence speakers.

항공사 승무원 가치제안이 직무만족 및 이직의도에 미치는 영향

한정혜(Jung Hyea Han),정규엽(Kyoo Yup Chung),이규태(Gyu Tae Lee) 한국관광연구학회 2014 관광연구저널 Vol.28 No.3

The purpose of this study, based on theories and previous studies, are to analyze the effects employee valueproposition(EVP) has on flight attendants, how they influence their job satisfaction and turnover intention. Theresults of this study, through are as follows. Firstly, subordinate elements of EVP, interesting matters, wealth andcompensation, self-development had meaningful effects on promotion and interesting matters, wealth andcompensation had meaningful effects on work environment. Secondly, promotion, work environment hadmeaningful effects on turnover intention. Finally, it has shown that there was moderating effect on job satisfactionand turnover intention derived from EVP according to airline type. In conclusion, in order to secure and maintainoutstanding flight attendants of airlines, employee value proposition can be clearly used as an effective tool. When itcomes to creating results for the airlines, flight attendants` performance plays a critical role. Above all, it is importantthat the airlines secure, maintain, and nurture their employees to secure a long-term competitive edge overcompetitors.

위탁급식업체 규모에 따른 급식관리자 직무만족에 영향을 미치는 개인, 급식소 및 조직특성 분석

한정혜(Jeong Hye Han),이나영(Na Young Yi),홍완수(Wan Soo Hong) 대한지역사회영양학회 2009 대한지역사회영양학회지 Vol.14 No.2

The purpose of the study was to investigate the influences of contract foodservice managers` personal characteristics, foodservice characteristics and organizational characteristics on job satisfaction, including interpersonal relationships, self-actualization and promotion opportunity categories. A survey was administered to four hundred contract foodservice managers of five large companies and five small/medium companies in the Seoul and Kyungin areas. The final response rate was 66% (N=265), and the data were analyzed using SPSS Windows (ver. 12.0). The respondents were 76.1% female, average age 28.8 years, and 73.0% were regular workers. Contract foodservices have profit and loss contracts (69.1%), single menu types (59.6%) and buffet serving styles (37.7%). There are significant differences of job satisfaction by some personal characteristic variables (gender, martial status, age, education, position, work hours, period of working for the present company, and payroll per year) and foodservice characteristic variables (type of contract and charge of food costs). In three job satisfaction categories, foodservice managers reported the highest interpersonal relationship satisfaction, following self-actualization satisfaction and promotion opportunity satisfaction in both large companies and small/medium companies. However, foodservice managers of large companies tended to be more satisfied regarding their promotion opportunities than foodservice managers of small/medium companies (p<0.05). Work hours, number of meals served/day, male, workload, communication with the clients, relationship with co-workers, obvious role and autonomy were significant factors to increase the job satisfaction in contract foodservices of large companies. On the other hand, relationships with co-workers and males were significant factors to increase the job satisfaction in contract foodservices of small/medium companies. This research suggests that contract foodservice companies need to understand the characteristics of their managers, foodservices and organizations to enhance the job satisfaction of foodservice managers and to develop specified human resource management strategies that can be applied to each company scale. (Korean J Community Nutrition 14(2):216~228, 2009)