• 한국수학교육학회지시리즈A:수학교육
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• 제41권1호
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• pp.45-58
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• 2002

This study was conducted to investigate the gender-related effects of two instructional programs on spatial visualization skills of ninth grade students. Two instructional programs were developed for this study: a web-based virtual reality program and a paper-based program. 194 ninth graders from two middle schools in Seoul participated in this study. Six classes were divided into experimental groups and control groups. The Middle Grades Mathematics Projects (MGMP) Spatial Visualization Test was used to measure spatial visualization skills. The data analysis indicated that both the web-based and paper-based programs were effective to improve spatial visualization skills to treatment groups. Although boys'test mean scores were higher than girls' in the pretest, when deleting the effect of covariance of pretest, there were no statistical significance in the post-test. Girls in the treatment groups favored the paper-based spatial visualization program. These results imply that spatial training may benefit girls' performance more than that of boys and mode of instructional programs can create gender-related differences regarding spatial visualization skills.

• 대한수학교육학회지:학교수학
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• 제9권3호
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• pp.353-373
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• 2007

본 연구는 초등학교 6학년 학생들의 공간감각과 공간추론능력의 실태를 조사하였다. 공간감각 측면에서는 전반적으로 학생들의 공간 시각화 능력이 공간 방향화 능력보다 우수하였는데, 각각의 하위 요소를 분석한 결과 변환능력이 회전능력보다, 방향감각과 물체의 구조인식능력이 위치감각보다 상대적으로 우수하였다. 공간추론능력 측면에서는 학생들이 문제를 해결할 때 다양한 공간추론능력을 사용하는 것으로 드러났는데, 특히 변환의 인식과 사용, 분석과 종합, 시각화 방법의 개발과 적용을 많이 사용하였다. 본 논문은 학생들의 공간감각 및 공간추론능력 사용형태를 상세히 분석함으로써 이와 관련한 교수 학습 과정에 시사점을 제공하고자 하였다.

• 공학교육연구
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• 제18권5호
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• pp.42-50
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• 2015

In spite that spatial ability has been recognized as an important element of academic achievement in engineering studies, researches on the topic are rather limited in Korea. In this study, the relationship between spatial visualization skill and academic achievement of engineering students was investigated based on the several variables such as gender, high school education background and college course achievement. The result showed that there were significant relevance between spatial visualization skill and gender, high school type, achievement of high school level math & physics, and college course work grade of computer graphic and capstone design. According the case study, from the entry time of engineering college, support programs to reinforce spatial visualization skill are required for lower skill groups such as female and graduate from art course in high school. Also, college curriculum such as Engineering graphics, Capstone design are substantial to improve spatial visualization skill. However, more diversified sample groups and research methods are required in order to draw in depth results.

• 대한가정학회지
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• 제42권10호
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• pp.79-89
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• 2004

This study was designed to investigated children's spatial cognitive skills as based on their practice with computer games. The sixty children were divided into 3 groups there were twenty children in experimental group 1 (the geometric game experimental group), twenty children in experimental group 2 (the arcade game experimental group), and twenty children in the control group. The sSpatial cognitive skills of the children were assessed according to by visual speed, mental rotation, and spatial visualization tasks. The rResults showed that computer game practice enhanced the children's spatial skills (visual speed, mental rotation and, spatial visualization). The c Children's mental rotation and spatial visualization showed a significant difference with the type of computer game.

• Spatial Information Research
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• 제23권6호
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• pp.109-116
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• 2015

본 연구에서는 공간빅데이터의 개념과 특징을 정의하고 데이터에 대한 통찰력을 높일 수 있는 정보 시각화 방법론을 조사하였다. 또한 시각화 과정에서 발생할 수 있는 문제점 및 해결방법을 제시하였다. 공간빅데이터를 공간정보의 정량적인 확장의 결과와 빅데이터의 정성적인 확장의 결과로 정의하였다. 공간빅데이터는 6V(Volume, Variety, Velocity, Value, Veracity, Visualization)의 특징을 갖고 있으며, 최근 활용 서비스 측면이 이슈화 되면서 공간빅데이터에 대한 통찰력을 제공하여 데이터의 활용 가치를 높이기 위해 공간빅데이터의 시각화가 주목받고 있다. 정보 시각화의 방법은 Matthias, Ben, 정보디자인교과서 등을 통하여 다양한 방법으로 정의 되어 있으나 공간빅데이터의 시각화는 방대한 양의 원시 데이터를 대상으로 하기 때문에 데이터의 조직화 과정을 거쳐야 하며 이를 통해 사용자에게 전달하려는 정보를 추출해야 하는 차이점이 있다. 추출된 정보는 특성에 따른 적합한 시각적 표현 방법을 사용해야 하며, 많은 양의 데이터를 시각적으로 표현하는 것은 사용자에게 정확한 정보를 제공 할 수 없으므로 필터링, 샘플링, 데이터 비닝, 클러스터링 등을 이용하여 데이터를 축소하여 표현하는 방법이 필요하다.

• 한국초등과학교육학회지:초등과학교육
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• 제38권1호
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• pp.116-129
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• 2019

This study investigated elementary students' spatial thinking and visualization when they learned the shape of volcanoes. For this purpose we used GeoMapApp to design instruction program and assessment items. In the instruction, students were asked to connect the floor plan view of Jeju island with the cross-sectional view of the same figure producted by GeoMapApp. Then they were asked to classify four sets of pictures of volcanoes based on the similarities of figures, that is, dome-shaped and shield volcanoes. In the assessment students solved three questions which examined how they connected the plan view and cross-sectional profile of Kilauea, draw cross-sectional profile of Mt. Fuji, and distinguished a shield volcano and dome-shaped one. Students' discourse data during the class were analyzed according to the amount to showing their spatial thinking and visualization. The instruction program using GeoMapApp assisted students to facilitate their spatial thinking for understanding of volcanoes. The outcomes of assessment showed even elementary students had good spatial thinking and visualization. Therefore, we argued spatial thinking and visualization for geoscientific understanding need to be included in the national science curriculum for elementary students.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제17권2호
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• pp.159-171
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• 2014

본 연구는 초등학생용 공간시각화 검사지를 개발하고 표준화하는데 목적이 있다. 이를 위하여 총 24문항으로 구성된 초등학생용 공간시각화 검사지를 개발하였으며, 초등학생 1482명을 대상으로 검사를 실시하여 신뢰도와 타당도를 분석하였다. 분석결과는 다음과 같다. 첫째, 초등학생용 공간시각화 검사지의 문항내적일관성 신뢰도는 Cronbach's ${\alpha}$=.794로 양호한 것으로 나타났다. 둘째, 검사지의 24문항에 대한 타당도를 검증하기 위하여 확인적 요인분석을 한 결과, 검사지의 타당도가 양호한 것으로 판단되었다. 셋째, 검사지 24문항에 대한 문항난이도는 .200에서부터 .886으로 나타났으며, 평균 문항난이도는 .544인 것으로 나타났다. 이상의 연구 결과로 볼 때, 본 연구에서 개발한 초등학생용 공간시각화 검사지는 신뢰도와 타당도를 확보한 것으로 보이므로, 초등학생들의 공간시각화 능력을 측정하는데 활용할 수 있을 것이다.

• 한국IT서비스학회지
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• 제7권1호
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• pp.205-218
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• 2008

This paper proposes a geospatial data visualization system supporting validation of GML documents. GIS systems manage and use both of spatial and non-spatial data. Currently, most GIS systems represent spatial data in GML (Geography Markup Language) developed by OGC. GML is a language for representation and sharing of spatial information, and until now many systems have been developed in GML. GML does not support expression of non-spatial data, i.e., relational information of spatial objects, and thus most systems extend GML to describe non-spatial information. However, it causes an issue that the systems only accepting standard GML documents cannot process the extended documents. In this paper, we propose a new GIS data visualization system to resolve the aforementioned Issue. Our proposed system allows the representation of both types of data supporting independency of spatial data and non-spatial data. It enhances interoperability with other relevant systems. Therefore, we can develop a rich and high Quality geospatial information services.

• 한국디지털건축인테리어학회논문집
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• 제12권3호
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• pp.49-58
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• 2012

In Regarding urban geo-spatial information visualization in this study, visualization of physical attribute information is mostly related to the representation of spatial domain and physical objects, and visualization of non-physical attribute information has to do with visualizing citizens and their activity information in the physical environment. In particular, a citizen, one of the non-physical information attributes, is characterized by a constant mobility in the physical environment, and thus visualization of his/her activity information is vital in conveying information because this information may not be depicted with any given, fixed figures. In consideration of this difficulty, this study integrates interrelationship among urban space, human needs, social relations, and lifestyles into a 'high-tech' service where experience in time and space is possible. To analyze the web-service and visualization cases, the study has selected visualization indicators consisting of information representation objective, information representation means, and information representation result. The results of the case analysis through specific indicators set a range in information representation objective, means, and result, thereby forming a user-friendly environment in which representational results are readily available to users, and ultimately expanding the users' selection range coming with a variety of options. This study also assumes that a wide range of service provision is needed to reflect users' needs in developing urban geo-spatial service model, and the display of its results should visualize users' satisfaction to construct the best information needed to users.

• 아동학회지
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• 제20권3호
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• pp.293-306
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• 1999

This study investigated children's spatial skills and short term memory ability based on their practice with computer games. The 40 four-year-old and 40 six-year-old subjects were divided by experimental and control groups. Spatial skills of children were assessed by visual speed, mental rotation, and spatial visualization tasks. Short term memory was measured with a digit span task. Results showed that computer game practice enhanced children's memory ability and spatial skills. Even 4-year-olds performed better on mental rotation and spatial visualization tasks after practice. The treatment effect was significant for visual speed of 6-year-olds, short term memory ability and mental rotation of 4-year-olds, and spatial visualization of both 4- and 6-year-olds.