• 통합자연과학논문집
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• 제4권2호
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• pp.143-148
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• 2011

This study was to promote the business of school dental health program in community area and to present the improvement of oral health between public health center's group of SungDong elementary school, one that started on March 1999, and the control group that is going to operate school oral health center from 2009 in primary school. It was based on the data of more than 10 years running school based oral health section. We compared the data of SungDong group with the one of control group to get a survey of dental caries experience. The preventive effect of the caries was estimated by the difference of DMFT indices between the sample group and control group. The experience rate of caries of the sample was 12.6 percentage lower than the control group and index of the experience rate of caries for the SungDong group was two times less. It showed that the sealing rate of the SungDong group composed of pit and fissure sealant was 67.7 percentage high. The prevention rate which was calculated by DMFT index was 46.34 percentage in the SungDong group that was the highest score for the fifth grade student as a 60.5 percentage. This program contributes to the improvement of the dental caries reduction in this school oral health promotion program.

• 대한지역사회영양학회지
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• 제19권3호
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• pp.223-230
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• 2014

Objectives: The purpose of this study was to provide the preliminary data for dietary education to increase students' vegetables intake. Methods: The attitude of vegetables consumption (5-Likert scale), preference score (7-Likert scale) and eating frequency (5-Likert scale) of 9 fragrance vegetables were investigated by survey questionnaire. A total of 370 students enrolled in primary, middle, high schools, and university participated in the study and data were analyzed by the SPSS WIN (ver 12.0). Results: About 40% of those surveyed answered that they do not eat some kinds of foods and 16% of students do not eat vegetables, the most unfavorable foods. The students in all groups (primary $2^{nd}$ and $2^{th}$, middle and high school, university students) answered that they liked vegetables with the highest score in university students, and they did not often eat fragrance vegetables. Lower age student group, especially primary school $2^{nd}$ showed more positive attitudes of eating challenge toward no experience, bad taste, and dislike but nutritious vegetable foods. The most important factor of vegetable preference was taste, the biggest reason of both like and dislike. Only 4 students designated nutrition as for vegetable dislike reason, means that all students knew about the nutritional importance of vegetables. It was shown that the color and flavor of the vegetables act as dislikable reason rather than likable reason. The significant correlations between preference score and intake frequency of fragrance vegetables were confirmed, and the younger the students the greater the correlation coefficient. Conclusions: Thus providing more chance to experience vegetables, such as fragrance vegetables and education about the importance of balanced diet will be an effective way of increasing vegetables intake, and the younger the students the greater the education effect.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제10권1호
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• pp.1-13
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• 2007

지난 30년 동안 연구자들은 교수-학습에서 사용할 수 있는 뇌에 대한 많은 정보들을 제공하였다. 연구에 따르면, 학생들은 다양한 경로를 통해서 정보를 받아들이고 자신에게 익숙한 학습 감각을 사용해서 이 정보를 표현한다고 한다. 그러나 수학교실에서는 시각적 자료가 주로 사용되는 것이 현실이다. 본 연구는 수학 학습에서 학습 감각이 갖는 시사점을 고찰하는데 목적이 있다. 본 연구에서는 Politano & Paquin의 분류에 따라 학습 감각을 시각적 감각, 청각적 감각, 운동적 감각으로 구분하고, 초등학생 141명, 중학생 117명, 고등학생 145명, 대학생 99명을 대상으로 학습 감각을 조사하였다. 학년 수준에 따라 학습 감각에 차이가 있는지를 알아보기 위해서 t-검정을 실시하였다.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제2권2호
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• pp.133-144
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• 1998

We examined two kinds of problem posing, 'problem making' and 'problem modifying' to find which one is more effective for improving mathematical problem solving ability according to the student's learning-levels and sexes. The results showed that 'problem making' is more effective for high and middle-level groups than 'problem modifying'. There was no big difference according to the sexes. These facts implies that making a problem when a situation was presented is more effective to develop problem solving ability than modifying a problem ： modifying some conditions and contents of given problem.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제5권2호
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• pp.143-161
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• 2001

This paper explores how unequally successful mathematics practices were constructed in the two elementary mathematics classrooms. The interview data that pertain to the two teachers' personal reflections on the influences on their professional development were used as a source of inquiry to identify the underlying factors that might account for the differences and the similarities in implementing reform ideals in teaching mathematics. This affords not only exploration of the challenges of moving teaching practices toward student-centered approaches but also insight of the processes of developing mathematics teaching practices through teachers\`own career paths.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제5권2호
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• pp.111-119
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• 2001

Over the years, the benefits of instructional manipulatives in mathematics education have been verified by classroom practice and educational research. The purpose of this paper is to introduce how the instructional material, specifically, geoboard could be used and integrated in elementary mathematics classroom in order to develop student's mathematical concepts and process in terms of the following areas: (1) Number '||'&'||' Operation : counting, fraction '||'&'||' additio $n_traction/multiplication (2) Geometry : geometric concepts (3) Geometry : symmetry '||'&'||' motion (4) Measurement : area '||'&'||' perimeter (5) Probability '||'&'||' Statistics : table '||'&'||' graph (6) Pattern : finding patterns Further, future study will continue to foster how manipulatives will enhance children's mathematics knowledge and influence on their mathematics performance.

• 대한간호학회지
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• 제4권2호
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• pp.107-120
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• 1974

Healthy second generation is considered the wealth of the nation. Recant statistical data revealers that student population: primary through university, is 25% of population. Despite the fact that health education is one of the three most valued educational aims of Ministry of Education, students, teachers and parents seem reluctant to its value. In this contort, influences of school health nurses on this aspect of education can not bi disregarded This study is designed to investigate the status and working condition of school health nurses and analyse the correlation between role perception and role expectation of school health nursers. teachers and students. Prior to main study. pilot interviews with 10 of each group according to check-list are performed. Data for main study is collected through check-list from September 10 to October 10. 1973 from 100 of each group. All responses of questionnaire item are categories into 4 aspects; health education, environmental sanitation qualification of school health nurses and social aspect of school. Results of study are as follows; 1. Differences on role perception of school health nurses and role expectation of teachers is revealed-non-significant by .05〈P〈.10 level. while between students is shown significant difference by P〈.005 level, in health education role of school hearth nurses. 2. The environmental sanitation category of school health nurses role: non-significant difference is revealed between teachers and school health nurses by. 05〈P〈.10 level, and significant difference-is revealed by P〈.05 level. 3. Difference in value orientation of school health nurses' personal quality; students and teachers differ with school health nurses by P〈.025 1eve1. 4. Social aspect of school in the community aspect: non-significant differences are revealed by.05〈P〈.10 level between air three groups. Conclusions: 1. Role perception of school health nurses is most closely correlated with their role expectation. Some individual differences are noted between items, and aspects. 2. Role perception of school health nurses is more closely correlated than that of with role expectation of teachers than that of students. Some individual differences are noted between items, and aspects. 3. Consensus of role of school health nurses between each group is relatively Low: student is the lowest group. teacher the second, and school health nurses the highest.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제11권1호
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• pp.39-57
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• 2008

본 연구에서는 현실주의 수학교육 이론을 바탕으로 '비율그래프' 단원을 재구성한 수업이 학생들의 수학 학업성취도와 수학적 성향에 어떤 영향을 주는지를 알아봄으로써 교실 수업을 개선하기 위한 것이다. 연구 대상은 6학년 학생 68명(실험반 34명, 비교반 34명)이었으며, 수업은 MiC 교재를 참고하여 재구성한 프로그램을 8차시에 걸쳐 실시하였다. 본 연구를 통해 얻은 결론은 다음과 같다. 첫째, 현실주의 수학교육론에 근거하여 재구성한 교재를 활용한 수업이 학습자의 수학 학업성취도 향상에 긍정적인 영향을 미치는 것으로 확인되었다. 둘째, 현실주의 수학교육론에 근거하여 재구성한 교재를 활용한 수업이 학습자의 수학적 성향에 긍정적인 영향을 미치는 것으로 확인되었다.

• Asian Pacific Journal of Cancer Prevention
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• 제16권17호
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• pp.7795-7801
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• 2015

The aim of the present research was to establish primary characteristics of electron beams for a Varian 2100C/D linear accelerator with recently developed PRIMO Monte Carlo software and to verify relations between electron energy and dose distribution. To maintain conformity of simulated and measured dose curves within 1%/1mm, mean energy, Full Width at Half Maximum (FWHM) of energy and focal spot FWHM of initial beam were changed iteratively. Mean and most probable energies were extracted from validated phase spaces and compared with related empirical equation results. To explain the importance of correct estimation of primary energy on a clinical case, computed tomography images of a thorax phantom were imported in PRIMO. Dose distributions and dose volume histogram (DVH) curves were compared between validated and artificial cases with overestimated energy. Initial mean energies were obtained of 6.68, 9.73, 13.2 and 16.4 MeV for 6, 9, 12 and 15 nominal energies, respectively. Energy FWHM reduced with increase in energy. Three mm focal spot FWHM for 9 MeV and 4 mm for other energies made proper matches of simulated and measured profiles. In addition, the maximum difference of calculated mean electrons energy at the phantom surface with empirical equation was 2.2 percent. Finally, clear differences in DVH curves of validated and artificial energy were observed as heterogeneity indexes were 0.15 for 7.21 MeV and 0.25 for 6.68 MeV. The Monte Carlo model presented in PRIMO for Varian 2100 CD was precisely validated. IAEA polynomial equations estimated mean energy more accurately than a known linear one. Small displacement of R50 changed DVH curves and homogeneity indexes. PRIMO is a user-friendly software which has suitable capabilities to calculate dose distribution in water phantoms or computerized tomographic volumes accurately.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제11권2호
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• pp.81-94
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• 2008

제7차 교육과정은 학습자 중심 수업을 강조하는 패러다임적 전환을 요구하고 있다. 하지만, 교사들의 신념은 여전히 이전의 교육과정을 실천하기에 적합한 신념들을 형성하고 있다. 좀 더 정확하게 말하자면, 교사들은 자신의 신념을 바뀌어가고 있는 중이다. 이에 본 고에서는 패러다임적 전환이 이루어진 교육을 실천하기 위해서 교사들이 형성해야 할 신념들 중 학습자관, 차시별 학습목표, 교육과정상의 모든 지식의 지도가능성, 학급당 인원수, 학업성취도 등 몇 가지에 대해서 논의한다. 이런 논의가 학습자 중심 수업의 실천을 더욱 강조하는 2007개정 교육과정을 운영해야 하는 교사들에게 도움이 되기를 기대한다.