• Structural Engineering and Mechanics
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• 제57권4호
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• pp.763-783
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• 2016

A methodology based on Teaching Learning-Based Optimization (TLBO) algorithm is proposed for optimum design of reinforced concrete retaining walls. The objective function is to minimize total material cost including concrete and steel per unit length of the retaining walls. The requirements of the American Concrete Institute (ACI 318-05-Building code requirements for structural concrete) are considered for reinforced concrete (RC) design. During the optimization process, totally twenty-nine design constraints composed from stability, flexural moment capacity, shear strength capacity and RC design requirements such as minimum and maximum reinforcement ratio, development length of reinforcement are checked. Comparing to other nature-inspired algorithm, TLBO is a simple algorithm without parameters entered by users and self-adjusting ranges without intervention of users. In numerical examples, a retaining wall taken from the documented researches is optimized and the several effects (backfill slope angle, internal friction angle of retaining soil and surcharge load) on the optimum results are also investigated in the study. As a conclusion, TLBO based methods are feasible.

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제16권1호
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• pp.43-53
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• 2010

This study purports to investigate the status quo of the environmentally-friendly green healthcare in teaching hospitals through the questionnaire survey. Data were collected from a total of 46 hospitals. The survey results revealed that most teaching hospitals did not meet the global standard of environmentally-friendly green hospitals. Especially, such items as alternative energy system, water recycling, CO2 emission reduction, green building construction, installation of pond or spring were found to be significantly below global standard. Based upon the study results, various strategies for establishing green hospitals were discussed. For example, energy saving design, such as solar heating, natural wind cooling, automatic temperature controller, green material use, wall surrounded by ivy, were recommended. In conclusion, the strategy and evaluation tool developed in the study will provide a good guide for establishing environmentally-friendly green hospitals.

• 한국초등과학교육학회지:초등과학교육
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• 제20권1호
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• pp.75-89
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• 2001

The purpose of this study is to get the more qualified elementary science teacher's guide as a major curriculum material for teachers and to find more improvement suggestions by analyzing of the teachers' perception and using status of it. To examine the problems of this study, 183 teachers from the elementary schools were surveyed by the questionnaire that was developed by researcher, and statistical technique for data analysis was frequency, using SPSS win(version 7.5). Teachers generally thought that the general remarks of the elementary science teacher's guide were helpful to understand elementary science education and the detailed subjects were useful, but teachers less satisfied about 'practice of teaching' of the detailed subjects. The most interested sector of the teachers' was the sector of the teaching methods. The results of this study were that the sector' the methods and evaluation of the elementary science education' of the general remarks and the sector' practice of teaching' of the detailed subjects were mostly interested. So it is necessary to be more detailedly guided when the development of the elementary science teacher's guide are considered.

• East Asian mathematical journal
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• 제30권4호
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• pp.385-404
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• 2014

There are some researches for international comparing of textbook and curriculum, so far. But These researches focused on comparing special region of textbook or curriculum. On the contrary, there are hardly papers how teacher's guide is consists and different with other country. In this paper, we have analyzed teacher's guide of Korea and Everyday Mathematics which is one of the teacher's guide in the many counties in the united states of America. Especially, teaching method, differentiated contents of curriculum, characteristics of consists of curriculum and so on. On the basis of this analysis, we search the improvement points of teaching of primary mathematics and also we make all the primary school teachers realize the diversity of teaching method through foreign cases and consequently they will make use of these results as a reference material such as reconstruction of textbook.

• 대한화학회지
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• 제53권2호
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• pp.166-174
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• 2009

양자화학에는 추상적이거나 비직관적인 개념이 많이 존재하여 학생들이 이해하기에 어려움 을 준다. 다행히, 전통적인 강의실에서의 강의를 보조할 멀티미디어 웹 응용프로그램을 제작할 강력한 도구들이 웹 기술의 발전으로 많이 생겼다. 이 논문에서는 이 문제를 다루는 한 방안으로서 쇽웨이브 기술을 이용하여 웹 브라우저 상에서 쌍방향 시뮬레이션과 시각화를 동시에 해결하는 방법을 제시한 다. 여러 예를 통하여 어떻게 쇽웨이브 기술의 특성을 이용하여 웹에 기반을 둔 학습 자료를 용이하게 개발하는가를 보여준다.

• 대한수학교육학회지:학교수학
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• 제2권1호
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• pp.111-144
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• 2000

The purpose of this study is to develop instruction sequence and teaching units for secondary school geometry using dynamic computer software like CabriII, GSP, Wingeom, Poly. For this purpose, literature was reviewed on various issues of geometry education and geometry curriculum using dynamic software. By the literature review, instructional sequence for teaching geometry in middle schools was designed. And, based on the newly developed instructional sequence, one sample teaching unit was developed. The basic principles for the development were to connect intuition geometry and formal geometry, and to emphasize students' investigative experience. Finally, experiment to check out teachers' response to the newly developed material was conducted by using questionnaire.

• 한국정보교육학회:학술대회논문집
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• 한국정보교육학회 2010년도 하계학술대회
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• pp.19-25
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• 2010

교육이 이야기를 통하여 지식을 전달한다는 점에서 스토리텔링은 교육과 밀접한 관련을 맺고 있다. 그러나 학교에서 이루어지고 있는 스토리텔링이 교사 중심으로 치우쳐서 학생을 수동적인 스토리 수신자로 만든다는 문제점이 제기되었다. 따라서 본 논문은 학습자가 능동적으로 상호작용할 수 있는 디지털 스토리텔링을 교육에 활용할 수 있도록 초등학생을 위한 디지털 스토리텔링 교재를 개발하였다. 아직 초등학교에서 디지털 스토리텔링 교육이 이루어지고 있지 않기 때문에 방과후 학교 프로그램으로 적용할 수 있도록 12개의 주제를 24차시 학습내용으로 구성하였다. 본 교재를 학교 현장에 적용한다면 디지털 스토리텔링 교육 확산에 기여하여 학습자의 자기 표현력과 창의력을 신장시키고 더 나아가 변화하는 사회에 적응하고 주도할 수 있는 능력을 키울 것으로 기대한다. 후속 연구에서는 학습에의 적용을 통한 본 교재의 교육적 효과를 검증하고 교재 내용을 재설계하는 과정이 요구된다.

• 영재교육연구
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• 제18권3호
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• pp.591-612
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• 2008

본 연구에서 K 초등 과학 영재교육 자료에 제시된 수업목표를 Bloom의 신 교육목표 분류학으로 분석한 결과는 다음과 같다. 제시된 수업목표는 13개 주제에 총 217개였고 영역별로는 에너지 27개, 물질 68개, 생명 52개, 지구 70개였다. 지식차원에서는 개념적 지식에 해당하는 수업목표가 가장 많았고 절차적 지식, 메타인지 지식, 사실적 지식 순으로 나타났다. 인지과정 차원에서는 '이해하다'에 해당하는 수업목표가 가장 많았으며 '적용하다', '창안하다', '분석하다'와 '평가하다' 순이었고 '기억하다'는 매우 적었다. 수업목표를 에너지, 물질, 생명, 지구의 네 영역으로 나누어 분류한 결과 지식 차원에서는 에너지, 물질, 지구 분야의 경우 개념적 지식이 가장 높은 비율을 차지했고 절차적 지식, 메타인지 지식, 사실적 지식 순으로 나타났다. 반면, 생명 분야는 절차적 지식이 가장 높은 비율을 차지했고 다음으로 메타인지 지식, 개념적 지식, 사실적 지식 순으로 나타났다. 인지과정 차원에서는 네 영역 모두 '이해하다'에 해당하는 수업목표가 가장 많았는데 그 비율은 지구 영역에서 가장 높았으며 물질, 에너지, 생명 순으로 나타났다. '기억하다' 범주에 해당하는 수업목표는 네 영역 모두에서 낮게 나타났다. 따라서 K 초등 과학 영재교육 자료의 수업목표는 복잡한 지적 조작을 요구하는 상위 수준의 사고 기능을 기르는 데 목표를 두고 있음을 확인하였다.

• International Journal of Internet, Broadcasting and Communication
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• 제12권4호
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• pp.55-60
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• 2020

This study aims to apply Arduino and 3D printing technology considered as a key subject in the age of 4th industrial revolution which is a step 1 for customizing and applying the process of production by chemical molding companies producing environment-friendly biodegradable packaging materials to the 3D printing teaching in universities. Step 3 is applied to IoT for Arduino application, and 3D printing technology is also used on the basis of teaching creative integrated human resource. Integration of Arduino with 3D printers is based on the assumption that middle- and high-school students can learn it step by step to higher levels and university students majoring or not majoring in computing science can also have computing skills for solving 3D printing-based problems. For IoT application in this study, the 3D printing technology is applied to the external shape of products for producing an Arduino-based lighting fixture. The applied 3D printing technology is further extended to teaching modeling of producing packaging materials by chemical product molding companies in the age of 4th industrial revolution.

• 영어어문교육
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• 제9권spc호
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• pp.185-208
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• 2003

The purpose of this paper is to examine some of the theories concerning socioaffective strategies, to analyze the dialogues of the students negotiating for meaning of a reading material and to suggest some implications of socioaffective strategies for teaching reading. The examination of the theories - the interaction hypothesis and the sociocultural theory - suggest that the use of socioaffective strategies facilitates more effective understanding of information that is to be found. distributed, and taken in among the participants. The discourse analyses of the students' interaction in a Korean college English reading class show ample evidence of the use of socioaffective strategies that helped them understand the meaning of a text. However, the analyses show that the strategies are mostly used to ask questions concerning the meaning of clauses. Only few analytical questions are raised for some structural and pragmatical features in the text which are crucial to the understanding of its meaning. Imbalance also exists in the types of the questions used by the participants. The analyses indicate that, instead of negotiating more interactively, the students tend to rely upon a more advanced student when they face difficult English sentences. Therefore as a conclusion this paper emphasizes the importance of teaching socioaffective strategies to help students to help themselves to become more cooperative, independent and analytical in reading English texts.