• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 2000년도 THE THIRD INTERNATIONAL CONFERENCE ON AGRICULTURAL MACHINERY ENGINEERING. V.III
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• pp.569-577
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• 2000

The position of tobacco leaves is affluence to the quality. To evaluate its quality, sample leaves was collected according to the position of attachment. In Korea, the position was divided into four classes such as high, middle, low and inside positioned leaves. Until now, the grade of standard sample was determined by human expert from korea ginseng and tobacco company. Many research were done by the chemical and spectrum analysis using NIR and computer vision. The grade of tobacco leaves mainly classified into 5 grades according to the attached position and its chemical composition. In high and low positioned leaves shows a low level grade under grade 3. Generally, inside and medium positioned leaf has a high level grade. This is the basic research to develop a real time tobacco leaves grading system combined with portable NIR spectrum analysis system. However, this research just deals with position recognition and grading using the color machine vision. The RGB color information was converted to HSI image format and the sample was all investigated using the bundle of tobacco leaves. Quality grade and position recognition was performed through well known general error back propagation neural network. Finally, the relationship about attached leaf position and its grade was analyzed.

• 한국학교보건학회지
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• 제13권1호
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• pp.63-84
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• 2000

Primary school is regarded as an important period when many health-related behaviors and life-styles begin to be formed. Acquiring them through school heath education has a strong influence on the health promotion of not only the family but also the community. Primary school health education in Korea has a systematic flaw in that health-related subjects are divided and taught under various subjects in primary school. In order to develop a proper school health curriculum, it is essential to assess what is currently being taught. In this study the current health education of the 6th grade primary curriculum was investigated to improve school health education. The purpose of this study is to identify the health education contents and time in textbooks of the 6th grade primary school curriculum. In this study, the textbooks & teacher's teaching manuals of the 6th grade curriculum were analyzed with a health instruction framework for Korean schools developed by the Korean Nurse Association & Korean School Health Education Association in 1993 and health care framework for health education curriculum presented by Kim in 1991. The results are as follows ; 1) Health education hours of the curriculum are 206 hours, about 34.3 hours a year. 2) The contents of health education were divided into nine subjects at primary schools. Organizing principles of learning experience(eg, integrity, sequence and continuity) were not considered sufficiently. The physical education & natural science subjects include a lot of health education contents. 3) The major content areas are community & environmental health areas and daily healthy life areas. 4) The major areas at each grade level are daily healthy concerns and safety & first-aid 5) The remarkable contrast to the 5th primary school curriculum are that environmental health is offered to the first grade step by step, and that drug use & abuse and mental health education are included in the 6th primary school curriculum. 6) The main contents of health education in 1st, 2nd. and 3rd grade curricula consist of treatment & recovery health functions. Those of the 4th grade curriculum consist of treatment & recovery health functions, and daily healthy life functions. Those of the 5th grade consist of growth & development functions. Those of the 6th grade consist of treatment & recovery health, growth & development functions. Most health care functions belong to physical health care. The results above suggest that we put together the divided contents of health education and manage them on the basis of systematic integration.

• 한국가정과학회지
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• 제7권2호
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• pp.47-58
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• 2004

This study is designed to provide some basic materials for finding better ways to promote student-parent communication in order to elevate the sense of self-esteem among middle school students and to talk about the importance of communication between students and parents through looking at the current student-parent communication reality resulting from socio-demographic changes among male and female middle school students and analyzing some influences student-parent communication has on students' self-esteem. To attain the aforementioned purpose, total 650 2nd grade and 3rd grade middle school students were asked to fill out the questionnaire. The schools that they are attending are 2 schools in Gwangju City and 2 schools in a township in Jeonnam. 617 students responded to the survey. In order to see the general characteristics and the distribution of major variables of the respondents, the data were used to produce frequency. percentile, standard deviation and correlation quotient. and t-test. one-way Anova, Duncan's multiple range test and multiple regression analysis techniques were put to use. The results from this study are as follows: student groups that have good relations with other students seemed to be more open and active in their communication with their mother and father. Female students and students in their 2nd grade had more open talking relations with their mothers than male students and students in their 3rd grade. Students had more open talking relations with their father when father's occupation is office worker. In the difference of self-esteem that results from variables in communication between students and parents, a significant variance was presented in the level of the self-esteem of middle school students. When they had open communication with both parents, they had a high sense of self-esteem. and when their communication style was problematic, they had a low sense of self-esteem. When they had better relations with other students, when they had more open communication styles with their mother, when they had better school records, when they felt more satisfaction with communication With their father, they showed a higher level of self-esteem.

• 대한지구과학교육학회지
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• 제11권2호
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• pp.125-144
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• 2018

이 연구의 목적은 순위 선다형 문항을 이용하여 초 중 고 학생들의 천문학적 사고 수준을 파악하는 것이다. 이를 위하여 각각 3개의 공간적 사고와 시스템 사고 측정 문항으로 구성된 검사지를 구성하고, 이를 강원도 소재 12개 학교 5학년, 8학년, 11학년 학생 총 1,066명을 대상으로 투입하였다. 수집된 학생 응답 자료를 고전 검사 이론의 추리 통계와 문항 반응 이론의 Rasch 모델에 적용하여 분석하였다. 분석 결과는 다음과 같다; 첫째, 천문학적 사고 중 공간적 사고 수준은 천체의 공간 위치와 방향은 파악할 수 있지만 2차원 평면에서의 천체 운동을 3차원으로 변환하지 못하는 것으로 나타났으며, 학년에 따라 통계적으로 유의미한 차이가 없는 것으로 분석되었다. 둘째, 천문학적 사고 중 시스템 사고 수준은 천체의 운동 시스템을 구성하는 요소와 요소 간 연관은 파악할 수 있으나 시스템의 경향성은 파악하지 못하는 것으로 나타났으며, 공간적 사고와는 달리 학년에 따라 통계적으로 유의미한 차이가 있는 것으로 분석되었다. 셋째, 특정 상황(내용)에서 발현되는 천문학적 사고가 학년에 관계없이 매우 유사한 것으로 나타났으며, 이를 통해 천문학적 사고의 상황(내용) 의존성을 확인할 수 있었다. 이 연구 결과들은 학교 수업에서 천문학적 사고 수준을 높일 수 있는 방법을 탐색하기 위한 기초 연구 자료로 활용될 수 있을 것으로 기대한다.

• 한국가정과교육학회지
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• 제14권3호
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• pp.65-76
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• 2002

The Purpose of this study was to investigate the relationship between Parenting stress and verbal abuse of elementary and middle school students' mothers. The subject were 659 adolescences and their mothers. Data was analyzed by t-test. ANOVA, correlation. In the study, generally mother's parenting stress level and mother's verbal abuse level tent to be below the mean scores. Parenting stress related to learning expectation is significant difference to adolescent's sex/grade. but verbal abuse is not significant difference to the sex/grade. And Parenting stress related to temperament and learning expectation is significant difference to mother's education level And as for correlating Parenting stress to verbal abuse. the significance appeared in these factors.

• 한국학교보건학회지
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• 제27권3호
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• pp.140-147
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• 2014

Purpose: This study aimed to identify the factors affecting on depression among female middle school students. Methods: A survey was conducted on 217 first and second grade female middle school students in C city. Participants' general characteristics, home environment, level of depression, paternal, maternal, peer attachment, school adjustment were measured by self-reporting questionnaire. With SPSS 18.0 program, measured variables were analyzed and compared using descriptive statistics, t-test, ANOVA, Scheff$\acute{e}$ post hoc test, and stepwise multiple regression analysis. Results: The level of depression among female middle school students were higher among students with lower economic status, second in birth order, and second grade in school. The level of depression was negatively associated with the level of paternal attachment (r=-.522), maternal attachment (r=-.487), peer attachment (r=-.376), relationship with teachers in school adjustment (r=-.274), relationship with friends in school adjustment (r=-.378), classroom behavior (r=-.450), school regulation (r=-.267). About 42% of depression among female middle school students were explained by paternal attachment, relationship with friends in school adjustment, and classroom behavior. Conclusion: Paternal attachment was identified as the most influencing factor on depression among female middle school students. Encouraging paternal involvement in the process of school adjustment might be a useful intervention to decrease depression among middle school girls.

• 한국학교ㆍ지역보건교육학회지
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• 제20권2호
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• pp.25-36
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• 2019

Purpose: The purpose of this study was to examine the factors affecting of health screening among persons with disabilities. Method: The study examines the factors affecting of health screening using over 20 years of age who participated in the 2017 National survey of the disabled data. Subjects were 6,332 person with disabilities over 20 years of age. Data were analyzed using descriptive statistics, X2-test, multiple logistic regression with the SPSS win 21.0 program. Results: Health screening among persons with disabilities is differentiated with education level, marital status, Subjective House economic status, Health insurance, Economic activity, Type of disability, Grade of disability, Stress recognition, Depressive symptom, Suicidal thinking, Suicidal attempt, and grade of disability. The significant predictors of the health screening were age, Subjective House economic status, Economic activity, and Grade of disability. Conclusion: We should consider age, disability level, and economic level when developing a screening program for people with disabilities. Especially, the development and promotion of the health screening program for persons with disabilities and related education are required.

• 수산해양교육연구
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• 제28권1호
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• pp.235-247
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• 2016

The purpose of this study is to analyze elementary school students' pre-concept of electromagnet and to investigate effects of instruction through social interactions on conceptual changes of the electromagnet. For the purpose, 108 elementary school students of 3 classes were selected from the 6th grade. They were divided into the control group I, control group II and experimental group. The control group I was treated through traditional instruction on the basis of text book. The control group II was instructed with a modified version of the textbook to help them better understand the concept of electromagnet. The experimental group was treated through instruction on the basis of the above modified version of the text book and social interactions. Conceptual changes on electromagnet before and after the treatment were quantitatively and qualitatively analyzed using the identical test. The students' styles of social interaction were qualitatively analyzed with tape records of their discussions and work sheets. Effects of instruction through social interactions based on radical constructivism on the 6th-grade elementary school students' concept of electromagnet were examined here. The results were described as follows. Firstly, after the treatment, the experimental group was statistically significantly higher in mean values of conceptual understanding and academic achievement than both the control group I and II. Secondly, styles of social interaction in the three sub-groups of the experimental group were qualitatively analyzed, among the threes, high- and medium-level sub-groups were higher in the frequency of linguistic social interaction than the low-level sub-group. Those students who were excellent in communication skills actively participated in linguistic social interactions. In discussions among the three sub-groups, students of the high- and medium-level sub-groups provided explanations or information while those of the other sub-group sometimes were passive by just listening, but in large actively participated in communication. In conclusion, instruction through social interactions was effectively changed in the 6th-grade elementary school students' concept of electromagnet.

• 대한수학교육학회지:수학교육학연구
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• 제10권1호
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• pp.35-55
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• 2000

There seems to be a public consensus that the content of Korean mathematics textbooks is extensive and of a high level of difficulty. However, such judgment is the result of a generalization based on individual experience or on the results from comparisons of the international levels of achievement. Therefore, a more objective and stricter approach to the determination of the quantity and level of difficulty of mathematics content is necessary. For this purpose, this study has compared the content of Koreas 6th and 7th junior high school curriculums, and the Korean mathematics curriculum to textbooks of the United States, which has a considerable influence on the making of Korean mathematics textbooks. First of all, a comparison of Koreas 6th and 7th junior high school mathematics curriculums showed a slight reduction in the total quantity of content, as more content was deleted than was added in the 7th curriculum. However, given the fact that the number of hours of mathematics classes has been reduced, the reduction in content cannot be regarded as anything more than a simple reflection of the reduction in hours, proving that the 7th curriculum has not met its revision objective of reducing the content by 30%. Meanwhile, the comparison of the United States junior high school mathematics textbooks to Korea's 7th curriculum showed that the 7th grade content in the United States was much broader, encompassing content which in Korea ranged from the 2nd grade of elementary school to the 2nd year of junior high school. Therefore, on the surface, it may appear that the overall level of content in the American mathematics textbook is lower than that of the Korean. However, there are several cafes, such as statistics and probability, where certain content was more difficult and introduced at an earlier grade in the United States than in Korea. In fact, it can be said that Korea students tend to find content of the mathematics textbooks to be harder than they actually are because they are delivered as a mere aggregate of algorithms, with little consideration to its application in their everyday lives. In this respect, there is much room for improvement on the mathematics textbooks of Korea.

• 대한가정학회지
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• 제40권10호
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• pp.65-76
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• 2002

The purpose of this study win to examine the relation between level of income, perceived parental behaviors, and ego-identity of school-aged children. The subjects were 356 children in the 6th grade selected from six elementary schools in Seoul and Keunggi-Do. The subjects were asked to complete the questionnaire on ego-identity and perceived parental behaviors. The data was analyzed by Mean, SD, Cronbach's α, Pearson's correlation and Multiple Regression. The major findings were as follows : 1. The level of income(antecedent variable) was significantly related with perceived parental behavior(mediator) and ego-identity of school-aged children(dependent variable). 2. The effects of level of income on ego-identity of school-aged children became lower after control of the effects of perceived parental behaviors. In other words, perceived parental behaviors partially mediated the effects of level of income on ego-identity of school-aged children.