• Journal of The Korean Association For Science Education
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• v.28 no.3
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• pp.187-196
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• 2008

In this study, a survey was conducted of students in grades 7 through 12, student teachers enrolled in their senior year at teachers' colleges, and science teachers. Subjects were surveyed on their conceptions of phenomenon related with dissolution, saturation, and extraction. The models and analogies used by student teachers and science teachers to explain dissolution were sought. The highest percentage of students thought of dissolution as a phenomenon in which particles broke into the spaces between other particles. The models or analogies used by the highest percentage of science teachers were similar. They generally conceived of dissolution phenomenon through what we call the 'space conception'. A conception of dissolution phenomenon as 'hydration through attraction of solvent and solute' was held by more student teachers than science teachers; there were some differences, however, according to their academic background. The percentage of teachers professing this view decreased when they attempted to explain the process of extraction of matter in a solution after other matter had dissolved or after the solution was cooled, indicating that the 'hydration' conception was not firmly established in the student teachers' cognition. Therefore, it can be inferred that the conceptions of dissolution as 'hydration' were transformed into the conceptions of dissolution as 'space' after teaching dissolution phenomenon as practicing teachers. This finding should be considered in teacher-training courses.

• Journal of Korean Academy of Nursing
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• v.29 no.4
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• pp.870-879
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• 1999

The reality of violence involving youth has recently increased and has become a serious social problem. The study was done to identity violence related feetors including types of assault, victim status and a violence preventive plan. The subjects were students in boy's high schools in the Jinju area and data were collected through a questionnaire. The research was done to demonstrate the seriousness of school violence and to determine the origins of the problems present measures to eradicate school violence. 1. The types of assault included slander, violent language to classmates, destroying school property, stealing money by beating and violent conduct, sexual harrassment or sexual violence. About 19% of the high school students had experience as violent assaulters. The reasons for such assault were abuse by the victim, discontent at home & school and for amusement with friends without any reason. 2. With respect to the status of damage by violence most cases took place within the school which is considered to be safe for students. Violence such as slander, abuse, violence language, disregarding or excluding took place the most at school and in case of the assaulter it was a college student or a student in the senior grad. 3. As for measure to prevent violence identified by the students, the need to provide space for youth leisure activity was listed as important along with the need for guidance for the future which took into account suitability related to the student's ability and the need to get rid of education mainly for entrance exams. Endeavors to prevent violence must be persistent in all aspect, so that such inhuman like violence will not appear and the negative elements raised by youth will be solved one by one.

• Korean Journal of Human Ecology
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• v.10 no.2
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• pp.63-75
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• 2007

The results of this study on Purchase Patterns and Recognition of Processed Foods of School Meal Service Dietitians of elementary, junior and senior high schools in Chonbuk and Deagu Area are as follows : First, the rate of single cooking of the schools surveyed is 100% in Deagu and 66.9% in Chonbuk, and Chonbuk has more small-meal service schools which caused a higher labor cost than Deagu, Secondly, schools in Deagu has purchased not completely processed vegetables and fish and shells than Chonbuk, and Chonbuk(66.9%) has served more Kim-chi products than Deagu(41.6%). Thirdly, nutritional effects and preference have been considered as school dietitians make plans for the menu. Fourthly, the opinions of the school dietitians about processed food are in the order of high sodium content, convenience and the use of preservative, and Chonbuk has responded positively to the articles of future oriented quality, cooking usage and variety while Deagu has thought of it as an economical. The expected effects from the use of processed foods are in the order of saving labor time and student preferences. Fifthly, meat products have been frequently used and more frozen meat products have been used in Deagu and senior high school than Chonbuk and elementary and junior high schools, last, preferences on processed food are in the order of frozen sea food, noodles. dried sea food, processed vegetable and fruit, dairy goods and others. Senior high school dietitians have preferred packed meat products and other frozen processed food more than elementary and junior high school dietitians. The rate of serving processed food had a different depending on the number of students. In this study, dietitians recognize the harmful effects of processed foods over the merits, which means that the rate of using processed food is low. The proper usage of processed foods is thought to improve the preference of students, to have cooking time shortened and to help manage the meal service sanitarily and efficiently. Therefore, companies producing processed foods should do their best to develop safety and health oriented foods to gain the credibility, and the government should make new regulations for people to purchase and obtain processed foods without any doubt.

• Korean Journal of Health Education and Promotion
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• v.19 no.4
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• pp.45-60
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• 2002

The aim of this study was to assess adolescents' sexuality and to gather student opinions on current school-based sex education in South Korea. A self-administered questionnaire survey was conducted in Seoul, Incheon, and Kyunggi Province to assess the status and needs of high school sexuality education. Survey data was obtained from 1,130 senior high school students. The rates of sexual intercourse for boys and girls were 33.1% and 13.2% respectively. Boys were more likely to be sexually involved (p = .000) and experienced earlier at first sexual intercourse than girls (p = .006). Among students who had sexual intercourse, only 20.3% (21.1% of boys and 19.1% of girls) used contraceptives at first sexual intercourse. The proportion of respondents who had had sexual intercourse was higher among those with poor self-perceived academic performance (p = .000). The proportion was also higher among those with a boy or girl friend (p = .000). Other risk-taking behaviors such as smoking and drinking were associated with sexual activity (p = .000). This study found that most students were not satisfied with sex education because of teachers' lack of information and skills in delivering it. Most teachers providing sex education were not qualified and/or trained. They should receive adequate training and guidelines for the training. Training should also give teachers time to practice and become comfortable in delivering it.

• Journal of Korean Academy of Oral and Maxillofacial Radiology
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• v.28 no.1
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• pp.37-46
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• 1998

The purpose of this study was to evaluate the diagnostic performance of the senior dental students for the proximal dental caries on intraoral radiographs and to compare it with the dental hospital residents, the reference group. It was also investigated the diagnostic performance according to the carious lesion depth. Thirty-five intraoral periapical and bitewing radiographs with 213 proximal surfaces included in this study were selected from the dental patients at Chonnam National University Hospital. The observers were 181 senior dental students from 5 dental schools and 40 dentists who were second year resident from 5 dental hospitals. They were asked to evaluate the presence or the absence of the proximal dental caries. The results were as follows: 1. The mean of the hitting rate for the overall observers was 184.51 surfaces and the diagnostic accuracy was 86.62％. 2. The diagnostic performance of the sound proximal tooth surfaces was very high, i.e., 91.5％ true negative rate and 8.5％ false positive rate. 3. The diagnostic performance of the dentist group was higher than the student group(P<0.05). 4. The proximal dental caries perceptibility increased as the lesion depth increased significantly(P<0.001) except no difference between the carious lesion depth III and IV (P>0.001).

• Journal of the Korea Fashion and Costume Design Association
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• v.4 no.2
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• pp.47-67
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• 2002

The purpose of this study was to investigate the differences of Middle and High School Students' influential groups in putting on clothing according to their delinquency and demographic variables. My subject was 1050 middle and high school boys and girls who are resident in Seoul; sample groups were selected, considered their resident area, gender and the kind of school. The results are as follows: 1. The exemplary group was most regarded the opinion and evaluation of teacher, father and mother and followed the clothing of teacher. Compared with the exemplary group, the delinquent group was most regarded the opinion and evaluation of other and same sex friend and tended to follow their clothing style. Besides, the delinquent and middle groups were most regarded the opinion and evaluation of seniors and tended to follow their clothing style. The mass media star was most modelled by delinquent group, following by middle and exemplary groups. 2. Schoolgirls were more regarded the opinion and evaluation of same sex friend and senior and were more remarkable to follow the clothing style of their parent, friend, senior or mass media star than schoolboys. The students who did well at school more were regarded the evaluation of father, mother and same sex friend than those who did commonly or poorly. As for the exemplary group, the poorer a student did at school, the more he/she tended to follow the clothing style of mass media star, but on the contrary, as for the delinquent group, all students tended to follow the clothing style of mass media star regardless of their academic record. And there was no significant difference according to social status in important others and model group.

• Journal of The Korean Association For Science Education
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• v.17 no.3
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• pp.289-299
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• 1997

This study has been undertaken in the light of constructivist view of teacher education. Participant observation, unstructured interview and questionnaire were used to explore the process and the role of practicum in science teacher education. The subjects were 19 student teachers majoring in physics education; 8 had participated at boys junior high school, 11 at senior high school. The student teachers had very critical and negative perception on their school days' science lessons. They had expected to do 'better' in their practicum but there were only 3 to 5 opportunities of teaching under the umbrella of textbook. Explanation in the classroom and solving exercise problem were the main features of student teachers' lessons. Much of the lessons were similar when it is to same topic and the main reference for their lesson preparation was the textbook. The student teachers felt the design of teaching approach as the most difficult thing during their lesson preparation. They realized that teaching is harder than they thought and they should consider students' level and responses. Though they had become to have more positive perception on teaching job through their field experiences, their decision on job preference did not change. More than half did not want to be a teacher. The student teachers recognised the courses related with science education as the most useful to their teaching in practice among the program of college of education which they had taken. The experience of writing one lesson plan or teaching in front of their peers, designing a new demonstration equipment were recognised as valuable and helpful element of the courses. They proposed to reduce the amount of general education courses and to emphasize the courses relevant with science education and practicum. The limited opportunity of teaching in practicum was pointed out as problematic. Though the practicum was recognized as a 'good' experience to student teachers, it was confined by textbook and limited teaching opportunity. In conclusion, the practicum was not organized and implemented as a meaningful experience of science teaching and learning. There should be more structured studies on what kind of perceptions and experiences the student teachers had brought to the science teacher education program, how they interact with the elements of the program and how they affect to their science teaching. The structure and content of practicum also should be studied and developed so as to make practicum as a meaningful experience of science teaching and learning.

• English Language & Literature Teaching
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• v.15 no.4
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• pp.75-94
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• 2009

This study was designed to assess demotivation factors and compare the factor between two secondary school student groups. It furthermore examined how the factors related to students' L2 proficiency. A 31-item questionnaire was completed by 407 junior (JH) and senior high school (SH) students. Five factors were extracted through the principal axis factoring: Teachers' competence and teaching styles, Dissatisfaction with English classes and grading system, Difficulty of learning English, Lack of motivation and interest in learning English, and Inadequate learning contents. Although both JH and SH students did not perceive their English teacher as a strong attribution of demotivation, Difficulty of learning English and Dissatisfaction with English classes and grading system were the two strongest demotivating factors. When compared the overall mean scores of each factor between JH and SH groups, significant differences were found in all factors except Factor 4, with SH students reporting stronger demotivation. JH students attributed their demotivation to Difficulty of learning English, while SH students attributed that to Dissatisfaction with English classes and grading system. Both groups tended to attribute their demotivation to external forces. The study also showed that several demotivation factors related negatively to L2 proficiency.

• Journal of Fisheries and Marine Sciences Education
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• v.21 no.1
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• pp.121-133
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• 2009

This study tested the relations of schools organizational climate and teachers' job stresses, perceived by 913 teachers from 45 elementary, junior- and senior-high schools. Pearson's correlation analysis for the relations between the sub-factors of both organizational climate and job stresses and cannonical correlation analysis for the relative contribution of individual variable of organizational climate upon job stress were applied for the test. The results of Pearson's correlation analysis showed that while 'intimacy', 'esprit', 'considerations', and 'production emphasis' climate had negative correlations with job stress sub-factors, 'disengagement' and 'aloofness' climate had positive correlation. 'Student guidance', a sub-factor of job stresses, did not have statistically significant correlation with any sub-factors of organizational climate. Findings from cannonical correlation analysis showed 2 significant cannonical functions to explain the relations between the sets of variables. 'Disengagement' from organizational climate positively contributed with 'authority forfeiture' and 'dissention and conflict' of the job stresses variables.

• Proceedings of the Korea Multimedia Society Conference
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• 2012.05a
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• pp.123-126
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• 2012

In general, there are 3 subjects of discussion in education field; namely past, present and future. Related with those facts, there is several information or knowledge that relatively hard to be presented in the real world. In this matter, digital content shows its contribution especially in the education field. Digital content can virtually represent the information or knowledge that seems to be difficult to be visualized in the real world before. In this project, researcher develops a mobile device's application that consist the skeleton's 3D virtual content. This application is expected to solve the above explained problem that usually appears during learning human skeleton in senior high-school's biology class. Besides, the application of digital content will make the learning process become easier because the student will have a visual learning tool. Last, the mobile device that is used in this prototype has offer an important beneficial namely mobility beneficial, so that the user can access the content anytime and anywhere.