• 정보교육학회논문지
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• 제12권1호
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• pp.49-56
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• 2008

초등학교 사회과 교육의 가장 큰 특징은 전 과정에서의 지역화라고 설명할 수 있다. 그 중 3학년 사회과의 내용은 지역의 성격과 생활 경험을 강조하고 있으며 제7차 교육과정 사회과에서는 최근 컴퓨터 통신과 인터넷의 발달로 새로운 형태의 지역화 자료의 유형과 활용 방안이 중요시되고 있다. 본 연구에서 개발한 웹 기반 지역화 학습 시스템은 이러한 정보화 시대의 요구에 부응하여 초등학교 3학년 사회과 교육과정을 중심으로 경기도 평택 지역의 내용을 학습할 수 있도록 하였다. 또한 현재 학교 현장에서 주된 학습 자료로 쓰이고 있는 초등학교 3학년 지역화 보조 교과서 외에 학생들이 자기 주도적으로 웹에서 활용할 수 있는 학습 시스템을 제작함으로써 부족한 지역 자료를 제공하고자 한다.

• 한국학교수학회논문집
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• 제2권1호
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• pp.145-156
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• 1999

The purpose of this study is to consider students′ scholastic relationship in mathematics between elementary school and middle school from the 3rd grade in elementary school to the 2nd and the 3rd grades in middle school. The following are the results: 1. CONCLUSIONS 1. Students′ present scores are most closely related to those of their previous grade. The data are based on the two groups of the 3rd grade middle school students - one is honhappan(mixed students from different elementary school) and the other shinaepan(the students from the same elementary school in kong ju city). This close relation between present and previous scores in mathematics may well be reasonable since mathematics is systemized hierarchically. Among the score data in elementary school, the scores in the 5th grade are meaningfully related to present score data in mathematics. 2. Two pans (as I mentioned above, honhap and shinae) are divided into groups and their scores are traced from the 3rd grade in elementary school and the data show that the high-levelled students have little changes in their scores, but low-levelled students have dropped radically in their scores from the first grade in middle school. 3. In terms of students′ interests, students who answered, "I′m very interested in mathematics." have no distinguished characteristics in their scores while those who answered, "I have little interest in mathematics" shows a decrease in their scores. 4. Among the reasons for their lack of interests, the replies are "because of exams," "because of teaching methods," and "because of the textbooks." II. Suggestion To compensate the limitation and difficiency of this study, the foll owing is suggested for the following studies related to this one. 1. This study was limited to gathering students′ score data from female students in a small city. For a more accurate statistic a bigger population is needed as well as varied geographical and social economical area is suggested. A good idea is to study homogeneous sex groups as well as heterogeneous sex groups 2. It is easy to find out what grade is closely related to the present scores by statistical analysis, but the reasons for their relationship have to be found out through the following studies 3. There are many studies on cognitive domain in math but it is expected to have more studies on affective domain as well.

• Korean Journal of Acupuncture
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• 제27권4호
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• pp.59-72
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• 2010

Objectives : In the study on the waveform analysis of radial artery pulse diagnosis, we need to establish fundaments of contemporary pulse diagnosis research, and to find the change of pulse waveform parameter with applied variation pf pressure. Methods : As we will to do experimental research on the difference of pulse waveform on the radial artery with applied variations of pressure(5 stage-pressure) and measuring position(left KWAN). In this research, we analyzed the change of the waveform according to five stage pressure. Results : The results were as follows; When we analyzed the change of the waveform according to pressure in the left KWAN, E, hl, h2 and A were the difference between 8ths pressure grades in 95% trust section. And t2, t4 were the difference between 8ths pressure grades in 95% trust section. W was the difference between 8ths pressure grades in 95% trust section. And h2/h1 was the difference between 6ths pressure grades in 95% trust section. There is the difference between 1st and 2nd grade & between 2nd and 5th grade in the case of t4/t2 in 95% trust section. And there is the difference between 1st and 5th grade, between 3rd and 4th grade, between 3rd and 5th grade & between 4th and 5th grade in the case of W/A in 95% trust section. And there is the difference between 1st and 2nd grade, between 2nd and 3rd grade, between 2nd and 4th grade, between 3rd and 4th grade, between 3rd and 5th grade & between 4th and 5th grade in the case of A/E in 95% trust section. Conclusions : We found the statistically resonable differences between each pulse depending on the applied pressure. And Analysing the radial pulse(left KWAN) at 5 applied pressure levels may be useful to study on the pulse waveform diagnosis.

• 아동학회지
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• 제26권2호
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• pp.225-242
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• 2005

This study investigated the relations between children's self-perceived competence and friendship quality by grade, sex and father/mother attachment, and the relative importance of father/mother attachment and self-perceived competence on quality of children's friendships. There was a mean difference in self-perceived competence by grade and father/mother attachment. While both 3rd graders and 5th graders showed high levels of father/mother attachment and self-perceived competence, 5th graders showed higher self-perceived competence than 3rd graders. There was a mean difference in friendship quality by grade, sex and father/mother attachment : 5th graders showed higher friendship quality than the 3rd graders, and girls showed higher friendship quality then boys. In conclusion, children's friendship quality was influenced by father/mother attachment and social acceptance.

• Human Ecology Research
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• 제62권2호
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• pp.249-259
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• 2024

The purpose of this study was to identify the longitudinal mediating effects of peer attachment on the relationship between psychological school environment and children's sense of community. Data on 1,088 children were obtained from the 10^th, 11^th, and 13^th Panel Study on Korean Children in the 3rd 4th, and 6th grades. The data were analyzed using descriptive statistics, Cronbach's α, Pearson's correlation, a latent growth model, and a multivariate latent growth model. All analyses were conducted in SPSS 25.0 and AMOS 23.0. The principal results were as follows. First, children's peer attachment gradually decreased over time. Moreover, individual differences existed in the initial values and rates of change. Second, the psychological school environment in the 3rd grade positively influenced children's initial peer attachment, which then exerted a positive impact on children's sense of community in the 6th grade. Second, the psychological school environment in the 3rd grade negatively influenced children's rates of change, which also exerted a positive impact on children's sense of community in the 6th grade. Finally, the initial value and rates of change of peer attachment were significant mediating effects of the relationship between the psychological school environment in the 3rd grade and children's sense of community in the 6th grade. The findings highlight the necessity of creating a psychological school environment that develops peer attachment and a sense of community among children.

• Clinical and Experimental Pediatrics
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• 제50권4호
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• pp.381-385
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• 2007

목 적 : 우리나라에는 전통적으로 내려오는 한약에 대한 선호도가 매우 강하여 남용의 우려가 있다. 이로 인한 의료비 지출 증가 우려와 의료질서의 왜곡현상 마저 생기고 있으나 이에 대한 자료가 부족하여 저자는 초등학교 학생들의 한약 이용 실태에 대한 연구를 실시하였다. 방 법 : 광주 소재 3개의 초등학교 1,508명의 학생들을 대상으로 설문조사를 시행하였다. 설문지가 회수된 905명의 학생들을 대상으로 분석하였다. 결 과 : 남아는 421명, 여아는 484명이었고 출생 후 자녀에게 한약을 먹여본 경우는 590명(65.2%)이었으며, 학년별로는 1학년 74.1%, 2학년 63.0%, 3학년 64.8%, 4학년 63.3%, 5학년 65.5%, 6학년 61.9%였다. 한약의 평균 복용 횟수는 3.2회였으며 6학년은 3.3회, 5학년은 3.9회, 4학년은 3.7회, 3학년은 2.7회, 2학년은 2.7회, 1학년은 2.6회였다. 한약 1회 복용시 평균 비용은 5-10만원이었다. 처음 한약 복용 평균 연령은 55개월이었으며, 6학년은 67개월, 5학년은 58개월, 4학년은 54개월, 3학년은 55개월, 2학년은 51개월, 1학년은 47개월이었다. 한약 복용 이유의 가장 흔한 것은 '병이 없지만 몸이 허약해 보여서'였다. 한약 복용 후 효과를 보았다고 생각한 경우는 63.7%였고, 부작용이 발생한 경우는 4.5%였다. 결 론 : 초등학교 학생들의 한약 복용 비율이 높았으며, 저학년으로 갈수록 한약 복용 비율이 증가하고, 초회 복용 연령도 훨씬 낮아지고 있다. 따라서 임상 의사들이 한약복용에 대해 더 많은 관심을 가지고 연구되어야 할 것으로 생각된다.

• 아동학회지
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• 제24권2호
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• pp.79-92
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• 2003

Data were collected from teacher reports and from 529 1st to 6th grade students through questionnaires. Bullying was higher among boys than girls. Victimization was higher in 2nd, 3rd, 4th and 6th grade boys than girls. Acting out was highest in 2nd graders and lowest in 3rd graders. Shy-anxiousness was highest in 4th and 6th graders and lowest in 1st and 3rd graders. Learning problems were lowest among 3rd graders. Competencies were higher in 1st and 2nd grades. Boys had more problem behaviors; girls showed better competencies. Bullying was positively related to acting out, and negatively related to frustration tolerance and task orientation. Victimization was positively related to shy-anxiousness and learning problems, and negatively related to frustration tolerance, assertive social skills and task orientation.

• Journal of Biosystems Engineering
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• 제37권4호
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• pp.215-224
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• 2012

Purpose: This study was conducted to classify the energy efficiency of 131 tractor models tested during from 2006 to 2010 in Korea. Methods: Four sub-indexes were developed using the fuel consumptions at 60% and 90% of rated speed with partial loads and at pull speeds of 3.0 km/h and 7.5 km/h with maximum drawbar pull. Weighting factors of the sub-indexes were also considered to reflect the characteristics of tractor's actual working hours in Korea. Four sub-indexes were integrated into a classification index. Using the developed classification index, a five-classification system was made on the basis of normal distribution of tractors over the classification range. Percentage of $1^{st}$ grade interval was expected to be close to 15%, $2^{nd}$ grade 20%, $3^{rd}$ grade 30%, $4^{th}$ grade 20%, $5^{th}$ grade 15%. Results: Number of $1^{st}$ grade was 21, $2^{nd}$ grade 23, $3^{rd}$ grade 39, $4^{th}$ grade 33, $5^{th}$ grade 15 among 131 models. Conclusions: Classification index was developed by integrating four sub-indexes. By the classification method using developed index, distribution of classified tractors was acceptable for practical application.

• 한국초등과학교육학회지:초등과학교육
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• 제28권1호
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• pp.35-45
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• 2009

We analyzed $3^{rd}$ graders' images of scientists and science learning students. We chose $3^{rd}$ graders because this is the time when children first encounter formal science learning opportunities. Draw-A-Scientist-Test (DAST) and the revised Draw-A-Scientist-Test Checklist (DAST-C) were used to analyze students' images of scientists, whereas Drawing-A-Science-Learner- and a checklist were used to analyze students' images of science learning students. We found that $3^{rd}$ graders showed common features of scientists who wore laboratory coats but not wearing glasses, goggles or masks and smiling. While most boys drew a male scientist, about a half of girls drew female scientists. Old and weird looking images of scientists that were typically known in other literatures were not found in this study. Science learning students were not wearing lab coasts, glasses, goggles, nor masks. Most of those students were conducting chemistry related experiments, which seemed to be influenced by the $3^{rd}$ grade's science curriculum. We also found relationships among components of images of scientists and science learning students. Although $3^{rd}$ graders' images of scientists and science learning students showed common features, this typical image was not the same as the previous studies have reported. This implies that the images of scientists and science learning students have not yet fixed by $3^{rd}$ grade. Thus, this seems to be a critical time when children start developing images of scientists. Children's direct experiences in the science classroom along with environmental factors such as media exposures can influence their formation of images of scientists and science learning students.

• 대한수학교육학회지:수학교육학연구
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• 제15권1호
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• pp.21-38
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• 2005

본 연구는 초등학교 3학년부터 단계적으로 확률 개념을 학생들이 배우게 하려는 의도에서 초등학교 학생들의 확률 개념 이해 실태를 분석한 자료를 바탕으로 3학년에 적용할 수 있는 확률 프로그램을 개발하고 그 적용 가능성을 모색해 보려는 목적으로 실시되었다. 그래서 초등학교 3학년에서 6학년까지의 확률 개념 이해 실태를 조사, 분석해보고 이를 바탕으로 확률 프로그램을 개발한 후, 수학학습 능력이 다른 초등학교 3학년 5명의 아동을 대상으로 총 8차시분의 확률 프로그램 적용을 실시하고, 아동의 프로그램 투입 전과 투입 중, 투입 후의 확률 개념 수준 변화를 분석하였다. 또한 그 적용 결과를 바탕으로 프로그램을 개선하였다.