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자유탐구활동의 소집단 구성방법이 과학 학습 동기와 과학 정의적 영역 성취도에 미치는 영향
허상철 ( Sang-cheol Heo ),김효남 ( Hyo-nam Kim ) 한국교원대학교 과학교육연구소 2018 청람과학교육연구논총 Vol.24 No.1
본 연구는 자유탐구활동에서 소집단을 구성하는 방법이 초등학교 6학년 학생들의 과학 학습동기와 과학 정의적 영역 성취도에 미치는 영향에 대해 알아보기 위한 것이다. 연구대상으로 K도 소재 Y초등학교에서 6학년 4개 학급을 선정하였다. 자유탐구를 실시하기에 앞서 4개 학급학생을 대상으로 과학 학습정서 검사를 실시하였고, 그 검사 결과에 따라 과학에 대한 흥미도를 기준으로 각 학급의 학생들을 동질 집단과 이질 집단으로 구성하였다. 실험 집단에는 과학에 대한 흥미도가 비슷한 학생들로 이루어진 동질 집단을 구성하여 소집단 자유탐구 활동을 실시하였고, 비교집단에는 과학에 대한 흥미도가 각기 다른 학생들로 구성된 이질 집단 간의 자유탐구활동을 실시하였다. 실험처치 후 과학 학습 동기와 과학 정의적 영역 성취도에 관해 사전·사후 검사 후 처치 결과를 비교·분석하였다 연구 결과를 통해 소집단에 속한 학생들이 탐구의 전 과정을 주도적으로 이끌어나가는 자유탐구에서 과학에 대한 흥미도가 비슷한 소집단 구성은 학생들의 과학 학습 동기 및 과학 정의적 영역 성취도 향상에 더 효과적이었음을 알수 있다. 자유탐구를 지도할 때 과학 학습 동기 및 과학 정의적 영역 성취도 향상에 적합한 소집단 구성 방법으로 학생들의 과학에 대한 흥미도에 따라 동질적으로 집단을 구성할 것을 제안한다. The purpose of this study is to investigate the effect of the method of constructing small group in the free inquiry activities on the science learning motivation and the attitude toward science in the 6th grade elementary school students. Four classes of 6th grade were selected from Y elementary school in Kyoungkido. Prior to conducting a free inquiry, students of four classes were subjected to a science learning emotional test. Based on the test results, students in each class were classified into homogeneous groups and heterogeneous groups based on their interest in science learning. In the experiment group, a homogeneous group composed of students with similar science interests were carried out small group free inquiry activities. In the comparison group, there was a free inquiry activity among heterogeneous groups composed of students with different scientific interests. After the experimental treatment, the results of the pre-test and post-test were compared and analyzed statistically. As results, first, small-group free inquiry activities composed of students with similar interests in science learning showed a statistically significant effect on the motivation to learn science in the sixth grade of elementary school. Second, small-group free inquiry activities composed of students with similar interests in science learning showed a statistically significant effect on the achievement of science affective domain in the sixth grade of elementary school. This study concluded that small-group free science inquiry activities composed of students with similar interests in science learning were more effective to increase the motivation to learn science and the achievement of science affective domain. Therefore, it is necessary to construct homogeneous small groups in terms of science interests for the free science inquiry activity.
도주차량 유류물의 고유식별기호 확인작업과 고유의장도안 비교시험에 의한 차종식별 방법
하용민(Yong-Min Ha),박종찬(Joung-Chan Park),이홍석(Hong-Seok Lee),조건우(Geon-Woo Joh),박하선(Ha-Sun Park),허상철(Sang-Cheol Heo),김상현(Sanghyun Kim) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
The debris of hit-and-run vehicle usually remain in vehicle-to-vehicle or vehicle-to-pedestrian traffic accident. They are classified into 2 groups : vehicle parts and vehicle articles. The former are under the control of vehicle model name. The latter are not influenced by vehicle type, class and feature. We define vehicle parts as components having specific code and unique design subordinate to vehicle model name. Through inspecting specific code and unique design of vehicle parts, we can identify detailed information and data concerning hit-and-run vehicle. The specific vehicle part code are classified into 2 categories. They are inscribed by production corporation and assembly company. They are composed of model name, production year and serial number described by alphabet and particular characters. We can decode the specific vehicle part codes by applying documents published in corporations inscribing them. The unique vehicle part designs are classified into 2 classes : qualitative comparison test item and quantitative comparison test item. The first are inspecting color, pattern, shape and curved surface with a orignal part. The second are measuring size, length, width, height and curvature with a standard prototype. In this paper we proposed a method for identifying vehicle model name by inspecting specific vehicle part code and unique vehicle part design from hit-and-run-vehicle debris. The application of the method to a hit-and-run traffic accident case is presented.