• Journal of environmental and Sanitary engineering
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• v.3 no.1 s.4
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• pp.19-26
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• 1988

This Study was performed from Feb. 4th Feb. 15th. 1985 in order to investigate if the rate of the contamination of students' hands were affected by sexes and grades of middle school. The sampled 29 students were selected from the 1st. and 2nd. grades of the middle school. The hands-washed salines were cultured for the isolation of microorganisms. The results were as follows: 1. It was found to be contaminated by 17 Genera of bacteria such as Staphylococcus, Streptococcus, Micrococcus, Bacillus, Neisseria, Branhamella, Acinetobacter, Moraxella, Ozromobacterium, Alcaligenes, Flavobacterium, Pseudomonas, Actinobacillus, Pasteurella, Vibrio, Enterobacteria and Plesiomonas. 2. The strains from 30 isolates were identified as 9 species, Staphylococcus aureus, Staphylococcus epidemidis, Micrococcus varians, Branhamella catarrhalis, Acinetobacter anitratus, Moraxella bovis, Moraxella urethralis, Pseudomonas aeruginosa and plesiomonas shigeiloid. 3. The frequency rates on 17 Genera appearances on Students' hands were Staphylococcus $(96.6\%)$, Enterobacteria $(41.4\%)$, Bacillus $(20.7\%)$, Branhamella $(17.2\%)$ et. 4. There was significant difference in cell number between hans of boys & girls. The rate of contamination of girls' hands, especially 2nd grade girls, was lower than boys' hands. This result showed that girls' hands were more clean.

• Journal of Science Education
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• v.35 no.1
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• pp.91-101
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• 2011

In this study, Jigsaw III cooperative learning strategy and traditional learning strategy have been applied to the 'electricity' chapter of grade 8 science textbooks to know the effects of learning strategy, gender, and GPA on the students' science achievement and science learning attitude of middle school female students in gender-separated classes. For this purpose, 143 students of 4 classes in separated classes were chosen from a middle school in Daegu. One female class and one male class were assigned to the experimental group and other female class and male class were assigned to the control group. Traditional learning strategy was applied to the control group and the Jigsaw III cooperative learning strategy was applied to the experimental group. Four worksheets for expert groups were used for 18 hours through 5 weeks. Both tests for science achievement and learning attitude were administered as pre and post test. The test results were analyzed through analysis of covariance(ANCOVA) as pre test score as covariant The overall conclusions of this study were as follows: The Jigsaw III cooperative learning has improved science achievement, especially on subjective-type questions, of female students and mid-lower level students. The Jigsaw III Cooperative Learning has also improved self-directed attitude toward science learning. Female students have expressed more positive opinion about the Jigsaw III cooperative learning.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.12
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• pp.71-80
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• 2016

Purpose: The aim of this study was to identify sexual experiences and associated factors among middle and high school students in Korea. Methods: Data were analyzed from 74,186 participants who completed the 2012 Korea Youth Risk Behavior Web-based Survey. Descriptive statistics were used to identify the condition of sexual behavior, and a complex sample logistic regression was used to examine the factors related to sexual behavior. Results: Data showed that 4.3% of adolescents had engaged in sexual intercourse (5.9% of males and 2.6% of females). According to the logistic regression analysis for complex samples, the school level, socioeconomic status, experience of part time work, and living with parents, were all factors associated with the decision to engage in sexual intercourse among boys and girls. In particular, sex education in schools was associated with a reduced risk of sexual intercourse. Conclusion: The results of this study highlight the importance of developing a program that focuses on enhancing sex education and promoting refusal and better decision-making skills in order to effectively reduce the likelihood of sexual experience among adolescents in Korea.

• 대한공업교육학회지
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• v.31 no.2
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• pp.64-82
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• 2006

This study investigated what effects multiple intelligence, through which the diverse intelligence abilities of a learner are identified, has on technological problem solving ability according to sex. And it was carried out to present a way to reduce the gap between boys and girls in technological problem solving ability. The subject was 833 middle school students in the third grade (boys: 423, girls: 410) whose schools are located in a megalopolis or more large area. And the instruments developed by Yong-Lyn Moon(2001) and in CRESST(1998) were used. The results of this study are as follows. First, it appeared that there were statistically meaningful differences at six items in multiple intelligence between boys and girls. The six items were bodily-kinesthetic intelligence, logical-mathematical intelligence, naturalistic intelligence, musical intelligence, interpersonal intelligence, and introspective intelligence. Second, in technological problem solving ability, it appeared that boys and girls showed statistically meaningful differences at self-regulation and problem solving strategy. Third, it appeared that logical-mathematical intelligence, linguistic intelligence, introspective intelligence, and natural intelligence had an effect on boys in the way of self-regulation and logic-mathematical intelligence, introspective intelligence, naturalistic intelligence, and linguistic intelligence did on girls. Fourth, it appeared that logical-mathematical intelligence, musical intelligence, and bodily-kinesthetic intelligence had an effect on boys in the way of problem solving ability and linguistic intelligence and musical intelligence had on girls. Fifth, it appeared that logical-mathematical intelligence did an effect on both sexes in drawing up the understanding of contents. On the basis of the results of this study, the area related to multiple intelligence directly or indirectly should be developed in the course of designing the primary and secondary curriculums to reduce the gap between boys and girls in multiple intelligence. With these efforts, the scholastic attainments gap caused by the difference of multiple intelligence will be overcome.

• Journal of the Korean Society of Food Science and Nutrition
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• v.43 no.12
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• pp.1920-1928
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• 2014

The purpose of this study was to evaluate the importance and performance of middle school foodservice hygiene in Busan. In this study, questionnaires were administered to 1,000 students consisting of 100 students in 10 middle schools in Busan in December, 2013. The students assessed importance and performance of personal hygiene as 3.81 and 3.60 on a scale of 5.00, respectively. Males gave higher scores to importance and performance of personal hygienic than females. First grade students gave significantly higher scores than 2nd and 3rd grade students to importance and performance of personal hygienic. The mean scores of importance of foodservice hygiene were 4.47 for food hygiene, 4.25 for equipment hygiene, 4.23 for employee hygiene, and 4.19 for environment hygiene. For importance of foodservice hygiene, females gave significantly (P<0.001) higher scores than males. However, male gave significantly higher scores than females for performance of foodservice hygiene. The importance and performance grid showed important factors for personal and foodservice hygiene. 'Hand washing before eating the meal' for personal hygiene and 'cleanliness of tray' for foodservice hygiene showed the highest importance and lowest performance scores. Foodservice hygiene can be improved through customized education of students regarding meal service and food hygiene, equipment hygiene, and environment hygiene.

• Journal of the Korean Society of School Health
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• v.10 no.1
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• pp.87-97
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• 1997

The purpose of this study is to examine the importance of family environment for middle school student's health behavior. In order to do this we collected data through the questioning of 543 male students and 512 female students in 4 Pusan middle schools. The results of this study are summarized as follows. The score on their family cohesion and adaptability was 57.8, 43.5 on the average for male students and 59.8, 44.8 in female students. The score on their family adaptability and cohesion was higher in fema1e students than male students. The score of their Breslow health behavior was 4.20 from a total of 7.00, the total score of health behavior was 131.4 from a total of 176.0 scores. The students had a 43.9 out of 60.0 in personal hygiene and daily habits, 32.8 out of 40.0 for infectious disease preventive behavior, 30.2 out of 40.0 in accident prevention, 24.5 out of 36.0 in mental health. In the cases of males, the score for Breslow health behavior was higher the lower the school grade, the younger the parents, the higher the educational level of parents, the more comfortable the family, and the higher the economic state. There was a statistically significant difference with regard to family cohesion and adaptability. In the cases of females, The total score for health behavior was higher. However, the difference was not significant in other fields. With the multiple regression analysis, the health behavior of middle school student was associated significantly with sex (female students), grade, family cohesion, and adaptability. In Breslow health behavior, scale sex (male students), father's age, family cohesion and the harmony of parents were significant variables. From the results of this study, a good family environment fur middle school students is very important.

• Journal of Korean Home Economics Education Association
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• v.28 no.4
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• pp.61-77
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• 2016

This study was conducted on 2016 $1^{st}$ and $2^{nd}$ grade middle school students in order to investigate of their perceptions and needs on sewing practice class, which had been experienced during their $6^{th}$ grade elementary school year. Implications and improvement for sewing practice class to be drawn from this study. The findings are as follows: Firstly, the levels of satisfaction with the practice contents and teaching learning method were higher than the median value(3.00). Among the subareas of class evaluation, participation scored the highest average, followed by interest, difficulty, necessity, importance, and utilization. In the entire subareas, girl students have more positive perceptions on sewing practice classes than boy students. Secondly, satisfaction with the practice contents has an effect on all subareas of class evaluation. The satisfaction with the teaching learning method has an effect on participation, interest, importance and utilization. Lastly, as for the practice contents, they would prefer household items and ornament, and want to choose sizes freely. As for students' needs for a new teaching learning method through which students are allowed to freely make objects or create works through a group activity, it was higher than the median value. This study showed that practice contents and teaching learning method are important factors that affect class evaluation. This study suggested that sewing practice class should be conducted freely choosing of practice contents, making the group works, group or student-led activities. If sewing practice class is designed in consideration of the results and students' needs for class, students' perceptions on class is expected to change in a positive way.

• Proceedings of the Korean Society of Community Living Science Conference
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• 2009.09a
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• pp.81-81
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• 2009

중학교 식생활 단원 교육은 신체적 성장이 왕성한 청소년기에 접어진 학생들이 올바른 식생활을 하여 건강 유지 및 정상적인 성장발달을 하는데에 꼭 필요한 내용이다. 그리하여 본 연구에서는 학생들이 식생활단원 교육을 통해 교육내용의 활용정도나 전반적인 식생활 태도에 미치는 영향을 조사하고자 대전지역에 소재하는 4개 중학교 3학년 학생을 대상으로 2008년 12월 5일~16일까지 설문지조사를 실시하였다. 조사대상자의 성별은 여학생이 48.9%, 남학생이 51.1%이고 학생들의 부모의 연령은 40-49세가 각각 81.4%, 86.7%를 차지하고 부모의 직업에서 아버지는 사무직(34.4%)이 가장 많고 어머니는 가정주부가 44.5%로 가장 많았다. 부모의 학력은 대부분 고졸이상이며 가족형태는 핵가족이 90.5%이고 부모의 한 달 총수입은 500만 원 이상이 32.6%로 가장 많았다. 식생활단원 교육 후에 식생활에 대한 관심정도는 '관심이 생긴 편이다'(36.4%), '그저 그렇다'(33.8%)가 많았고 남 여 학생의 경향이 비슷하였다. 교육 후 가장 변화된 점은 '간단한 조리를 할 수 있게 되었다' 가 38.6%로 가장 높은 반면 '아무 변화가 없다'도 34.4%나 되었다. 식생활 태도에서는 5점 likert 점수에서 '식사시간이 규칙적이다'(3.36), '골고루 섭취한다'(3.39), '식사준비를 돕는다'(3.07)에서 보통 이상의 점수로 양호한데, 한편 '내가 먹은 음식의 영양분과 열량에 관해 알고 있다'가 2.57로 잘 모르는 편이고 '다이어트 보조음식이나 약을 먹는다'가 1.48로 그렇지 않은 편이었다. 식생활단원의 활용도에서는 5점 likert 점수에서 '성분과 유통기한을 확인한다'(3.93), '간단한 음식을 직접 만들 수 있다'(3.80)가 높은 점수이었고, 남학생이 여학생보다 '성분과 유통기한 확인한다'(P<.01), '조리기구는 안전하고 위생적으로 사용할 수 있다'(P<.05)에서 유의적으로 높았다. 이 활용도에 대한 학생들의 가정환경과의 상관성에서는 부모의 학력이 고졸 이상에서 중졸이하보다 유의적으로 높았고(P<.001), 부모의 직업의 경우, 아버지가 무직인 경우, 어머니가 가정주부인 경우에 직업을 가진 부모의 학생들에 비하여 유의적으로 활용도가 낮았다(P<.01). 부모의 한 달 총수입과의 상관성에서는 400~500만원 미만의 경우에 다른수준보다 유의적으로 활용도가 높았다(P<.05). 따라서 식생활단원 교육에 의해 변화가 없는 학생들도 상당히 많아 교육방법의 개선이 필요하며 그 활용도가 가정환경과 상관성이 있음을 파악할 수 있었다.

• Journal of the Korean School Mathematics Society
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• v.19 no.1
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• pp.83-102
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• 2016

In this study we explored the effect of reading in mathematics classroom on five mathematical affective characteristics of middle school students. 100 2nd male middle schoolers' were participated in this study and five affective characteristics - interests, self-confidence, recognition of mathematics value, self-regulation, and mathematics anxiety- were investigated. According to the results, reading in mathematics class had an overall positive effect. Especially the characteristics interests and self-confidence of students' were improved. And for the low level students all characteristics were improved. And based on the result of pre and post test, and interview with 6 students, we suggest that desirable reading in mathematics classroom.

• Journal of The Korean Association For Science Education
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• v.20 no.4
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• pp.611-623
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• 2000

The cooperative learning movement began as parts of the desegregation process in America, aiming at increasing academic achievement and social skills among diverse students. Cooperative learning may be defined as a classroom learning environment in which students work together in small heterogeneous groups. Although many studies have shown the effectiveness of cooperative learning in a variety of subjects, relatively few have focused on biology. In this study, we investigated the effects of cooperative learning on students' achievement and attitude of middle school biology students. For this purpose this study compared three sections. In one section, a cooperative learning strategy was used. Second section was taught in small groups and the third section was instructed in the traditional method. The unit 'Structures and functions of animals' was used. A total of 188 students were included in this study. These classes were treated for 10hours during 10weeks from September 1 to November 28, 1999. The pretests-posttests control group design was applyed. An analysis of covariance(ANCOVA) was used as the data analysis procedure. Significant differences were found in the achievement and the attitude of students using cooperative learning strategy(p<.05) when compared to traditional classroom structure and small group learning. Cooperative learning was more effective in the low-ability and average-ability students than the high-ability students in the science achievement. Cooperative learning is effective in both male and female students. And students in the cooperative group achieved better than those in other groups in affective, behavioral, and intention-cognitive domain of science attitude.