• Journal of Science Education
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• v.34 no.1
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• pp.12-22
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• 2010

The purpose of this study was to investigate the effect of concept sketches on the understanding and scientific attitude in high school student's learning of weather change. Among the various fields of meteorology, especially in weather change, we often deal with the change of the spatiotemporal change in an abstract way. So making use of 'Concept Sketches'- simplified sketches which represent the main features, principles, processes and interrelationships of the learning contents using some concise explanations, signs and terms - could help the students learn the phenomena of weather change efficiently. This study's aim was to check up the effect and analyze the results of the lesson including the concept sketches. As a result of this study, concept sketches group showed significant improvement compared to the other groups in understanding of weather change and in scientific attitude, too. In students' recognition research of concept sketches showed that students found the class more interesting with improved concentration and had a chance to review through concept sketching, which is helpful for their learning. Considering the above research results, the study which applies concept sketching required the students to actively process their knowledge, and had a positive effect on the understanding of weather changes. Most of all, drawing the pictures which is a familiar activity helped the students to take part in the class eagerly.

• Journal of the Korean earth science society
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• v.35 no.4
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• pp.267-276
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• 2014

The purpose of this study is to investigate the effects of problem-solving inquiry teaching using concept sketches on conceptual changes about plate tectonics and science-related attitudes. The subjects of this study were two classes of second-year students of K high school located at Anseong in Gyeonggi Province. Before instruction, a conceptual test was conducted to survey student's preconceptions about plate tectonics. The control group took a traditional lesson, while the experimental group was applied to problem-solving inquiry teaching using concept sketches. After the inquiry instruction, TOSRA (Test of Science-Related Attitudes) was administered to find out changes in science-related attitudes of the two groups. The results of this study are as follows. The experimental group understood concepts of plate tectonics better than the control group, which means that problem-solving inquiry teaching using concept sketches was more effective in students' conceptual understanding. Science-related attitudes of the experimental group showed a significant change in the categories of 'normality of scientists', 'pleasure of science lessons', and 'interests on science as a hobby'. In conclusion, the instruction of problem-solving inquiry using concept sketches produced students' positive changes in conceptual understanding about plate tectonics and science-related attitudes.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 1998.04a
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• pp.38-43
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• 1998

서로 다른 개발 과정에 있거나, 이미 개발된 게임 공간에 새로운 시나라요의 스케치를 포함시키는 경우 시간(temporal)과 공간(spatial)의 개념적인 동기화가 요구된다. 본 논문에서는 게임 시나리오 스케치의 표현 공간에 대한 범주를 나누며, 게임 장면 순서의 시간 관계성과 동적 장면의 공간 개념과의 동기화에 관한 표현법률 확장하는 표현 모델에 대한 논의를 한다.

• Journal of KIISE:Software and Applications
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• v.36 no.3
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• pp.217-225
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• 2009

In case of sketching a conceptual model in 3D space, it's not easy for designer to recognize the depth cue accurately and to draw a model correctly in short time. In this paper, multi-strokes based sketch is adopted not only to reduce the error of input point but to substantiate the shape o) the conceptual design effectively. The designer can see the drawing result immediately after stroking some curves. The shape can also be modified by stroking curves repeatedly and be confirmed the modified shape in real time. However, the multi-strokes based sketch needs to manage the great amount of input data. Therefore, the drawing space is divided into the limited spatial cubical grids and the movable infernal vertex in each spatial grid is implemented and used to define the surface by the multi-strokes. We implemented the spatial sketching system which allows the concept designer's intention to 3D model data efficiently.

• Journal of The Korean Association For Science Education
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• v.30 no.1
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• pp.170-180
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• 2010

Among the various fields of Earth Science, especially in Astronomy, we often deal with the change of space-time in an abstract way. Thus, making use of 'Concept Sketches'-simplified sketches that represent the main features, principles, processes and interrelationships of the learning content by using some concise explanations, signs and terms could help the students efficiently learn the phenomena of Astronomy. This study's aim was to check its effects and analyze the results of the lessons that included concept sketches and a discussion about the field of Earth Science in high school. The control group took traditional lessons, while the experimental group did a small-group discussion that used the concept sketches. After the lesson, some students were chosen to answer a questionnaire and go through an in-depth interview. The result of the data shows that the small-group discussion lesson that used the concept sketches helped both the high-ranking and low-ranking students to build concepts and was able to attract students' attention. Moreover, the students produced long-term memories of the content learned through the class discussion, which allowed them to exchange their own thoughts and opinions with other students. Most of all, drawing pictures, a familiar activity, appealed to the students, so they took part in the class eagerly.

• Proceedings of the Korea Society of Design Studies Conference
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• 1995.11a
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• pp.42-44
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• 1995

표현 기법, 특히 산업 디자인 전공에서 진행되고 있는 아이디어 스케치 단계 및 렌더링 테크닉에 있어서 흔히 광원(LIGHT SOURCE)의 개념에 대한 정확한 이해가 부족한 경우를 대하게 된다. 주로 제품 디자인이나 운송디자인에 있어서 마커와 파스텔을 사용하여 자신의 아이디어를 시각적으로 구체화시키게 되는데, 이 과정에서 면의 흐름이나 변화를 일관성 있는 가상적 광원의 설정에 따라 정리해나가지 않으면 결과적으로 대단히 애매하고 모호한 스케치나 렌더링이 될 수밖에 없다. 간결하고 정확한 디자인 프리젠테이션을 위해서는 시각적으로 쉽게 이해가 되는 표현기법을 디자이너가 적절하게 구사해야 하는 것이다. 그러면 본격적으로 제품과 자동차디자인 스케치 과정에서 적용되는 본인이 이론을 설명하기로 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2000.10b
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• pp.875-878
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• 2000

내용 기반 영상 검색은 일반적으로 질의 영상을 사용해서 검색한다. 대부분의 사용자는 검색 당시에 자신이 생각하는 질의와 일치하는 영상을 실제로 갖고 있지 않다. 사용자는 검색기가 제공하는 샘플이나 자신이 갖고 있는 영상 중에서 검색하고자 하는 개념과 비슷한 영상을 질의 영상으로 사용한다. 그러나, 이 질의 영상은 사용자가 생각하는 개념을 충분히 반영하지 못하는 경우가 대부분이다. 따라서 사용자는 자신이 원하는 결과를 얻기 위해서 검색을 여러 번 하게 된다. 이는 최초 검색에서 적절한 질의 영상을 사용하지 못하고 있기 때문이다. 검색 시스템의 검색엔진도 중요하지만, 적절한 질의의 사용 여부에 의해 검색 결과가 크게 좌우된다. 적절한 질의 사용의 중요성은 기존의 텍스트 기반 검색에서 이미 알려진 사실이다. 영상 검색에서도 효과 적인 검색을 위해서는 사용자가 생각하는 질의 영상을 구체화하여 질의로 사용하는 기술이 필요하다. 이러한 관점에서, 사용자가 검색하고자 하는 추상적인 개념을 구체화하여 질의 영상으로 사용한다면 검색 성능을 높일 수 있다. 본 논문에서는 사용자가 생각하고 있는 추상적인 질의를 구체화하기 위해 스케치 인터페이스를 개발하였다. 스케치 인터페이스를 통해서 사용자가 생각한 질의를 구체화하여 이를 검색에 활용함으로서 전체 검색 회수를 줄임으로서 보다 빠른 시간에 효과적으로 검색을 수행할 수 있었다.

• Korean Architects
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• s.514
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• pp.60-63
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• 2012

• Journal of Korea Multimedia Society
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• v.12 no.2
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• pp.281-289
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• 2009

In this paper, a new interaction technique with the virtual single or dual acoustic reflection tablet is proposed to support the perception of depth cue and implement the effective spatial input systems of reducing the depth errors in general spatial sketching tasks. And several experiments show that the virtual wall with acoustic reflections can be thought of as a meaningful feedback for the plausible virtual conceptual design. By using the proposed idea, the degree of agreement to the target model is increased by 35% due to the single acoustic reflection tablet in the constant depth plane. In the slanted plane, the degree of agreement is increased by 8% due to the dual acoustic reflection compared to the single acoustic reflection and the degree of agreement is increased by 15% on the curved vase.

• Journal of Korea Multimedia Society
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• v.5 no.4
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• pp.434-440
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• 2002

This paper proposes a digital storytelling system that employs a method of making users simple online sketch being animated in 3D. To help users focus on their story development, our proposed system gives sketch guidelines providing 3D scene structure, and publishes final results as animated scenes with story text across time. This system is based on the web and the authoring process can also be shared with others.