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자료유형
학술저널
저자정보
저널정보
한국수학교육학회 수학교육 수학교육 제48권 제1호
발행연도
2009.1
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1 - 20 (20page)

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The study was to investigate an effect of students' learning for enhancing spatial ability, using a geometric manipulative recently designed. A mixed methodology was chosen to achieve the purpose of the study. To find students’ achievement, 152 of the 8th graders in Kyunggi Do participated in data collection. At the same time, students’ performance of the class was videotaped and analyzed to see students' responses. The results showed that the effect of using the manipulative was statistically significant at level, p< .05 to enhance the spatial ability. Specifically, in comparison of each component, spatial orientation was more effective than spatial visualization. In the spatial orientation, the part of field was more effective than the reorganized whole. It showed that students were given more opportunities to find mathematical properties and relations between 2nd and 3rd-dimensional figures through their intuitive observation, and also the manipulative helped the students find the property of the part of field because it gave an easy way to manipulate the property of the find parts of whole which was composed of the frame of the solid figures without surfaces. In using the manipulative, students were very flexible in finding the number of plane figures, but the relations between the 2nd and 3rd dimensional figures need to be clearly guided in consideration of the characteristics of the manipulative, based on the definitions of geometric properties(cf. points can make lines, not surfaces directly).

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