• 한국수학교육학회지시리즈A:수학교육
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• 제51권1호
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• pp.1-19
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• 2012

In this study, contents of 'the 2007 revised curriculum handbook' and 16 kinds of mathematics textbooks were analyzed first. The purpose of this study is to examine the understanding state of students at general high schools by making questionnaires to survey the understanding state on contents of chapter of complex number based on above analysis. Results of research can be summarized as follows. First, the content of chapter of complex number in textbook was not logically organized. In the introduction of imaginary number unit, two kinds of marks were presented without any reason and it has led to two kinds of notation of negative square root. There was no explanation of difference between delimiter symbol and operator symbol at all. The concepts were presented as definition without logical explanations. Second, students who learned with textbook in which problems were pointed out above did not have concept of complex number for granted, and recognized it as expansion of operation of set of real numbers. It meant that they were confused of operation of complex numbers and did not form the image about number system itself of complex number. Implications from this study can be obtained as follows. First, as we came over to the 7th curriculum, the contents of chapter of complex number were too abbreviated to have the logical configuration of chapter in order to remove the burden for learning. Therefore, the quantitative expansion and logical configuration fit to the level for high school students corresponding to the formal operating stage are required for correct configuration of contents of chapter. Second, teachers realize the importance of chapter of complex number and reconstruct the contents of chapter to let students think conceptually and logically.

• East Asian mathematical journal
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• 제33권2호
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• pp.177-197
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• 2017

The purpose of this study is to investigate and analyze the understandings of elementary pre-service teachers about 'estimation' in the elementary mathematics. Together with this analysis, we identify elementary pre-service teacher's Mathematical Pedagogical Contents Knowledge(MPCK), especially focusing to Subject Matter Knowledge(SMK). In order to this goals, we investigate contents relating to 'estimation' from $1^{st}$ curriculum to 2009 revised curriculum and compare 'rounding up', 'rounding off', 'rounding' in the elementary mathematics textbooks. As results of investigations, 'estimation' has been teaching at the 'Measurement' domain from $3^{rd}$ curriculum, but contexts of measuring weaken from $7^{th}$ curriculum. 'Rounding up(off)' is defined three types in the textbooks from $1^{st}$ to 2009 revised curriculum. And we examine elementary pre-service teachers through the questions on these 'estimation' contents. On the analysis of pre-service teacher's understanding relating MPCK, four themes is summarized as followings; the understanding of '0' in the 'rounding up', the cognitive gap between 'rounding up' and 'rounding off', the difference of percentage of correct answers according to types of question in the 'rounding up', and the difference between the definition of 'rounding up' and the definition of 'rounding'.

• 한국과학교육학회지
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• 제6권2호
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• pp.15-33
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• 1986

The main purpose of this study is to analyze the fourth and sixth grade in the elemental)' science contents using piagetian thinking patterns. An analysis of the elementary Science contents used the systems of Han Jong-Ha(1977), Lee Won-Shic and Lee Sang-On(1979). They analyzed the science contents based on Piagets' cognitive developmental stages. According to the results of this study, science contents consist of more difficult concepts those of children's thinking level. In other words, 6.4-19.3 percent to 23.5-25.0 percent in the fourth and sixth grade of the science contents are consisted with abstract level concepts that formal operational children can perform. But each grade, 99.2-95.3 percent of children have a difficulty in understanding such a abstract level concepts. They are in the concrete operation thinking level. Therefore, we say that children have difficulty in understanding of science contents and may lose interest in the contents.

• 한국기록관리학회지
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• 제19권1호
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• pp.69-93
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• 2019

아카이브 전시는 아카이브의 가치를 높이고 이용자의 관심 및 긍정적인 이미지를 높이는데 기여하는 아카이브의 중요한 업무 중 하나이지만, 아직까지도 활성화가 되지 못하고 있다. 최근 기록콘텐츠를 이용하여 일방적인 정보전달식의 아카이브 전시에서 벗어난 이용자의 관심과 이해를 이끌어낼 수 있는 새로운 전시방안을 시도하고 모색하는 움직임이 있다. 이에 본 연구는 국내 문화유산 기관의 전시 사례들을 종합 분석하여 기록콘텐츠를 활용한 아카이브 전시 활성화 방안을 제안하고자 한다. 기록콘텐츠를 통하여 기록에 대한 이해와 활용을 증진하는 방안에 초점을 두고, 본 연구에서 제안한 아카이브 전시프로그램 개발 전략은 3-way 콘텐츠 기반 전시, 체험 기반 전시, 디지털 환경 기반의 아카이브 전시이다. 본 연구 결과를 통해 이용자의 관심과 이해를 이끌어낼 수 있는 아카이브 전시프로그램 설계에 도움이 될 수 있을 것이라 기대한다.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2004년도 추계 종합학술대회 논문집
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• pp.228-233
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• 2004

급격하게 변화하는 멀티미디어와 이에 따른 커뮤니케이션 패러다임의 전환으로 디자이너에게 요구되는 역할 또는 변화하고 있다. 이에 연구의 목적은 인터페이스의 개념을 살펴보고 인터페이스 사용자의 인지적 특성에 대한 이해를 통해 인터페이스 디자인이 지향하는 바를 탐색하는 데 있다.

• 한국콘텐츠학회논문지
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• 제9권12호
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• pp.886-890
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• 2009

유아를 '이해한다'는 것은 최근 유아교육에서 매우 중요한 한 이슈가 되고 있다. 이는 유아를 발달단계상 특징으로만 이해하는 것에는 한계가 있으며, 기존의 양적 연구방식만으로는 해결할 수 없는 심층적 이해가 필요하다는 공감에서 비롯된 것이다. 본 연구에서는 유아를 총체적으로 이해하기 위한 하나의 방식으로서 해석학적 관점으로 유아문화 읽기를 제안하였다. 이를 통해 우리의 이해 대상인 유아의 과거, 현재, 그리고 미래를 포함한 심층적 이해와 해석이 가능하며, 그들의 삶과 문화를 공유하는 하나의 소통 방식이 되길 기대한다.

• 수산해양교육연구
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• 제22권1호
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• pp.11-24
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• 2010

The purpose of this study was to analyze the needs of the preservice secondary school teacher on understanding of international society and curriculum of international understanding and to derive the implications on developing curriculum of international understanding. This study used a questionnaire survey. The results are summarized as follows. First, it seems to be necessary to develop curriculum for satisfying the higesconcerns on worldsculture of preservice secondary school teacher. Second, the curriculum of educating international understanding for preservice secondary school teacher should contain such contents as multiple cultures, multiple perspectives, global relations and instructional materials. Third, it is necessary that instructions on educating international understanding should employ experience of global culture, discussion, lecture and so on.

• 한국콘텐츠학회논문지
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• 제16권2호
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• pp.117-128
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• 2016

과학기술로 인한 사회경제적 파급효과가 점차 증가하며 정책결정과정에 대중의 참여가 요구되고 이로 인해 일반인을 대상으로 한 과학대중화의 필요성이 부각되고 있다. 우리 정부도 이의 중요성을 인식하고 과학 대중화의 저변을 확대하기 위해 꾸준히 노력해왔지만 성과가 뚜렷하게 나타나지는 않았다. 정부지원기관인 과학관에서는 청소년을 위한 프로그램만이 주로 제공되고 있으며 과학전문 채널의 시청률은 매우 저조한 상태이다. 한편, 최근 들어 민간분야에서 저예산으로 제작된 일부 콘텐츠가 대중들로부터 상당한 호응을 얻고 있는데, 이는 흥미 있는 주제 선별, 대중의 눈높이, 외부전문가활용, 양방향 소통방식 등의 요소를 적절히 고려하며, 대중의 요구에 탄력적으로 대응한 것에 기인한다. 본 연구에서는 상호작용 모형에 근거한 PUS(Public Understanding of Science: 과학대중화이론)이론에 기초하여 팟캐스트 기반 프로그램, 현장강연 사례, 민간기업 전시행사와 팹랩 등의 민간분야 콘텐츠를 분석하고 이의 성공요인을 체계적으로 정리하였다. 나아가 향후 우리 정부가 과학대중화정책의 효율성을 제고하기 위해서는 민간분야 콘텐츠 제작을 보다 적극적으로 지원하고 양자 간 협업체계를 구축하여 시너지효과를 창출해야한다는 사실을 환기시킨 후 이에 필요한 정책을 제안하였다.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 2004년도 춘계학술대회 학술발표 논문집 제14권 제1호
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• pp.422-425
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• 2004

Many believe that electronic distance teaming education transform higher education, saving money and improving learning qualify So, the open University, which teaches around 280,000 students at a distance, is examining the adaption of its distance teaching methods for the internet. But, there are only one type of distance learning education of one way direction. To understand all of a student which selected some of e teaming course, teacher must check that how many student to understand and what is the difficult problems. Without checking this condition, It will be a very difficult and boring distance learning course. In this paper, we introduce of intelligent learning contents of full duplex direction that teach understanding student and not understanding student. The computer simulation results confirms that full duplex e learning system has been proven to be much more efficient than one way direction which not considering about understanding problems.

• ETRI Journal
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• 제39권4호
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• pp.502-513
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• 2017

For video understanding, namely analyzing who did what in a video, actions along with objects are primary elements. Most studies on actions have handled recognition problems for a well-trimmed video and focused on enhancing their classification performance. However, action detection, including localization as well as recognition, is required because, in general, actions intersect in time and space. In addition, most studies have not considered extensibility for a newly added action that has been previously trained. Therefore, proposed in this paper is an extensible hierarchical method for detecting generic actions, which combine object movements and spatial relations between two objects, and inherited actions, which are determined by the related objects through an ontology and rule based methodology. The hierarchical design of the method enables it to detect any interactive actions based on the spatial relations between two objects. The method using object information achieves an F-measure of 90.27%. Moreover, this paper describes the extensibility of the method for a new action contained in a video from a video domain that is different from the dataset used.