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정보 교과의 ‘문제 해결’ 주제의 성취 목표 및 교수-학습 방법에 관한 연구
정인기 한국정보교육학회 2014 정보교육학회논문지 Vol.18 No.2
정보화 사회에서 필요한 능력은 정보 능력을 바탕으로 한 문제 해결 능력의 습득이며 이러한 핵심 역량에 대한 교육 필요성과 함께 급변하는 정보화 사회에서 새로운 기술의 발전과 사회 환경의 변화로 인하여 교육 과정을 새롭게 구성해야 할 필요가 발생하였다. 따라서 한국정보교육학회에서는 정보 교과의 내용 체계에 대한 개정안에 대하여 연구하였으며, 정보 교육 내용을 ‘소프트웨어’, ‘컴퓨터 시스템’ 및 ‘융합 활동’의 세 영역으로 구분하였다. 이에 따라 본 논문에서는 ‘소프트웨어’ 영역의 ‘문제 해결’ 주제에 대하여 초등학교 1학년부터 중학교 3학년까지의 교육과정을 연구하였다. 먼저 ‘문제 해결’의 교육 내용을 ‘문제 이해 및 분석’, ‘데이터 관리’, ‘문제 해결 전략 수립’, ‘문제 해결 방법 탐색 및 개발’ 및 ‘문제 해결 방법 검토’ 등으로 분류하고 이에 대한 성취 기준을 제시하였다. 그리고 이 성취 기준을 도달하기 위한 교수 학습 방법과 평가 방안을 학년군 별로 세분화하여 제시하였다. 본 연구에서 제시한 ‘문제 해결’에 대한 교육과정은 정보화 사회에 필요한 인재 양성에 기여할 것으로 기대된다. We need problem solving abilities based on the information abilities in information-oriented society. New curriculum is demanded by new technology and circumstance to need the core competencies. Korea Association of Information Education has studied new curriculum and suggested new plans that contents of information education classified by ‘Software’, ‘Computer System’ and ‘Convergence Activities.’ Therefore, we studied on ‘Problem Solving’ topic of the ‘Software’ section of first grade to ninth grade. In this paper we firstly categorized ‘Problem Solving’ as ‘Problem Comprehension and Analysis’, ‘Data Management’, ‘Strategy Establishment for Problem Solving’, ‘Problem Solving Method Seeking and Development’ and ‘Examination of Problem Solving Method.’ We nextly suggested the achievement goals, teaching-learning methods and evaluation methods of ‘Problem Solving’ topic. We expect that the achievement goals and teaching-learning methods we suggested about ‘Problem Solving’ topic will contribute to training talented individuals.
鄭仁基 영남이공대학 1974 論文集 Vol.3 No.-
The loss of head for the bent pipe is affected by the friction at the inner wall of pipe and the secondary flow which is changed by the direction of the flow. Especially, in case of the radius of curvature of bend is small, the friction loss at bend which is caused by the effects of the secondary flow is increased suddenly. This experiment is aimed to investigate the effects of the changing of the ratio of the pipe diameter and radius of curvature, Rid, and the bending angle, O. on the friction loss. The results are summarized as follows; 1) The friction factor at bend is diminished when the radius of curvature is in. creased. (Fig.4) At R/d≤5, the ratio of the friction factors, fa/f,, is approached 1. therefor, to regard as the effect of the pipe bending would be disregarded. 2) For the 360?bent pipe, the friction factors are the function of the equations of Dean and Ito-Re(p/D)½ at Laminar flow, Re(d/D)² at Turbulent flow-as the coiling pipe, but the equations are unjusted for R/d3. (Fig. 6, Fig,7) 3) The minor-loss coefficients of the bend are affected greatly by the secondary flow at R/d<3, so. the equation (eq.8), coefficient of loss for the bent pipe, couldn't be used. 4) The equivalent lengths, l, of the straight pipe for the bent pipe are calculated as the Table 2. The minimum values of the equivalent lengths are at R/d≒3, and they are rather increased when Rid is enlarged more than 3. It is considered that, when R/d>3, the coefficient of loss by the secondary flow is constant and the friction loss at the wall of pipe which is caused by the growing the length of the center line of bend, 6, is increased. Thereby, for the bend of R/d≥5,is approximately equal to 4.
정인기,Jeong, In-Kee 한국정보교육학회 2002 정보교육학회논문지 Vol.6 No.2
자료구조 및 알고리즘 분야는 컴퓨터 프로그래밍 교육의 기반이 되는 과목이다. 그러나, 이제는 이 과목에서 활용되는 프로그래밍 방법이 비주얼 프로그래밍과 윈도우 프로그래밍에 적당하지 못하다고 해서 학생들로부터 외면당하고 있다. 따라서, 본 논문에서는 효과적으로 탐색 알고리즘을 교육할 수 있고, 비주얼 프로그래밍에 기반을 둔 소프트웨어 컴포넌트인 SCSA (Software Component for Search Algorithm)를 개발하였다. Data structure and algorithm are primary courses for computer programming education. However, now those are not interesting courses for students because the programming methodologies that used these courses are not the proper methodologies for the visual and windows programming. Therefore, we developed the SCSA (Software Component for Search Algorithm) which is a software component for effective search algorithm education, and is based on visual programming in this thesis.
足三里 配穴에 따른 電鍼이 흰쥐 大腦皮質의 NADPH-diaphorase와 nNOS, NPY, VIP 神經細胞에 미치는 影響
鄭仁基,金昌煥 대한침구의학회 2003 대한침구의학회지 Vol.20 No.1
Effect of Joksamni combination on NADPH-diaphorase, neuronal Nitric Oxide Synthase, Neuropeptide Y and Vasoactive Intestinal Peptide in the cerebral cortex of Spontaneously Hypertensive RatJung In-Gy*Kim Chang-Hwan**
돌출 발열블록표면에서의 충돌분류 열전달 특성에 관한 연구
정인기,박시우,박수철,Jeong, In-Gi,Park, Si-U,Park, Su-Cheol 대한기계학회 2000 大韓機械學會論文集B Vol.24 No.12
An experimental investigation on heat transfer characteristics of two-dimensional heated blocks using a confined impinging slot jet has been performed. The effect of jet Reynolds number(Re=3900, 5800, 9700), streamwise block spacing(p/w=0.5, 1, 1.5) and dimensionless nozzle to block distance(H/B=1, 2, 4, 6) have been examined with five isothermally heated blocks. With the measurement of jet mean velocity and turbulence intensity distributions at nozzle exit, initially turbulent regimes, are classified. To clarify local heat transfer characteristics, naphthalene sublimation technique as used. The maximum Nusselt number at the stagnation point for the jet Reynolds number is occurred at H/B=4. Besides, the local and a average heat transfer of heated blocks increase with decreasing streamwise block spacing and increasing jet Reynolds number.
太陽熱暖房의 可能性에 對한 考察 : 大邱地方의 日射條件을 中心으로 Centered on Solar Insolation Conditions in Daegu
鄭仁基 영남이공대학 1977 論文集 Vol.6 No.-
The performance and the feasibility of solar heating system are effected by the climate conditions, and it is well-known that Daegu has good conditions for the use of solar energy. In this study, based on the data which were measured with Pyranometer and were collected by the Central Meteorological Office, the climate conditions in Daegu are analyzed and the feasibility of solar space heating is investigated with the simplified method by Balcomb and Hcdstrom. The results were obtained as follows; 1) The values of total solar radiation on a horizontal surface in Daegu could be estimated about 90 percent of the data measured at Chilgok, and its are indicated in Table 2. 2) The climate conditions in Daegu would be adequate for the solar space heating. 3) The slope angle of a flat-plate solar collector may be appropriated the latitude plus 10 degree in winter and the latitude angle thru the year. 4) Based on the simplified method by Balcomb and Hedstrom, annual solar heating fraction is about 76 percent under the assumptions that the area of solar collector equal to the heating area, heating conditions are standard and building thermal load is 80kcal·m-2 ℃-1 day-1.