• Journal of the Korean Home Economics Association
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• v.38 no.8
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• pp.125-140
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• 2000

The purpose of this study is to find out the high school student's need for the program. The data was collected from 1125 high school students and their parents. The results of this study are like the following. 1 High school students and their parents all showed more than 3 points on the need for the program. 2. They revealed the highest need for programs on school as well as peer-related tasks and self-related tasks, respectively. On the other hand, parents were found to have the need for programs than student do. 3. Significant differences were found among students in their major, class type, and also among parents in gender of their children, class type, residential area, education status, and monthly average income. 4. Highschool-students and their parents all showed the highest points and displayed interest in selecting academic course suitable for their aptitude.

• Journal of Community Nutrition
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• v.7 no.4
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• pp.184-192
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• 2005

This study is to investigate the concerns about obesity and diet behaviors among 565 middle and high school students in Ulsan. The results indicated that high school students rather than middle school students and girls rather than boys had higher concerns about obesity and diet behaviors. For the socio-economic variables, being female, a high school student, and a group with the least monthly allowance was higher concern about obesity and diet; and household income, educational level and occupation of the fathers also had significant impacts on the student concerns about obesity and diet behaviors. The variables of height, weight, PIBW (Percentage of Ideal Body Weight), and BMI (Body Mass Index) had significant impacts on the concerns about obesity and diet behaviors. Especially, students with normal weight had the highest concerns about obesity and diet, while obese students had the lowest concerns. (J Community Nutrition 7(4): $184\∼192$, 2005)

• The Mathematical Education
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• v.52 no.3
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• pp.423-442
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• 2013

The purpose of the study was to examine the effects of the reciprocal peer tutoring in high school students' affective characteristics with respect to mathematics. The study was conducted with 111 first graders in one high school located in Gyeonggi-do, and the study lasted for 1 year in regular mathematics classrooms. According to the results, reciprocal peer tutoring was very effective in improving students' interest and self-efficacy toward mathematics and reducing mathematics anxiety. Especially, in high and low performing student groups, there were statistically significant improvements in affective factors such as interest, self-efficacy toward mathematics, and mathematics anxiety after reciprocal peer tutoring. However, average performing student group showed statistically significant improvements in affective factors of interest and self-efficacy toward mathematics.

• Journal of the Korean Society of School Health
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• v.30 no.2
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• pp.174-180
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• 2017

Purpose: This study examined depression, ego-resilience and health behaviors of high school student in order to understand the relationship among these variables. Methods: The study used raw data from the Korean Children and Youth Panel Survey conducted in 2015. Data was analyzed using SPSS 21.0 for descriptive statistics, t-test, $x^2$ test, Pearson's correlation coefficients, and multiple regression analysis. Results: Gender, school performance, economic status, subjective health status, drinking behavior and ego-resilience had significant effects on depression. Moreover, school performance, subjective health status, smoking behavior, duration of exercise during physical education classes, and depression had significant effects on ego-resilience. Conclusion: Based on these findings, we need to develop the interventions for depression and ego-resilience for adolescents, considering the related factors to health status and behaviors.

• Journal of the Korean School Mathematics Society
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• v.3 no.1
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• pp.47-57
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• 2000

The purpose of this study is to investigate the degree of anxiety factors for learning mathematics and look into the reason of anxiety of mathematics and show the method of eliminating negative and anxious factors in elementary school, secondary school and high school. To have learner take an interest in learning mathematics, develop the positive attitude about learning mathematics and maximize the effect of learning of mathematics, three kinds of hypotheses are established as follows: 1. There would be difference in anxiety factor of learning mathematics according to elementary school, secondary school and high school. 2. There would be difference in anxiety factor of learning mathematics according to sex. 3. There be difference in anxiety factor of learning mathematics according to the level of achievement. The results of this study are as follows: 1. Hypotheses I was testified. The anxiety factor between mathematics learning and mathematics teacher was significant difference according to elementary school, secondary school and high school. 2. Hypotheses II was testified. The result of hypotheses II was significant difference only in high school. The anxiety factor of mathematics teacher was significant difference according to boy student and girl student. 3. Hypotheses III was testified. The anxiety factor of mathematics, teacher and test was significant difference only in elementary school and high school.

• Journal of Korean Home Economics Education Association
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• v.7 no.1
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• pp.11-27
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• 1995

The purpose of this research is to study the middle and high school student’s value on the family life of the contemporary society. The data for this study has been collected for 808 students of kangwon-do by Liert-scale Type questionnaire. The data were processed by SPSS-X Program. Frequency, Percentage, Mean, Standard Deviation, One-way ANOVA, Pearson’r coefficient, Step-wise multiple regression and Cronbach’coefficient have been calculated and analyzed. The Summary of this research is described as follows. Firstly, the overall average of value of family life was 3.25 points which reflected more or less modern tendency. Secondly, significant difference in the student’s value of family life affected by environmental variables were such as sex(P<.001) school years(P<.001) group(P<.01). Thirdly, the overall average of the student’s interest in the home economics was 3.74 points which reflected heigher tendency, Significant difference in the student’s interest in the home economics according to environmental variables were such as sex(P<.001) school years(P<.05), living standard(P<.01), residential area(P<.001). Fourthly, the student’s overall interest in the home economics and their view on the family life were correlated as follows; Spare time(r=-1.3), parents-children(r=.12) relatives and neighbors(r=0.8) show lower correlation and household work(r=.07) show higher correlation. Fifthly, the area which has closest correlation with the value on the family life was the value on family economics, whereas is has been shown that the field with least correlation was the area of supporting the spare time. Sixthly changes that affect the student’s value of the family life were such as sex (${\beta}$=.43), school years(${\beta}$=.18), group(${\beta}$=.15) and interest degrees(${\beta}$=-.12). These whole explanatory power was 21%.

• Journal of the Korean School Mathematics Society
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• v.22 no.1
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• pp.47-61
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• 2019

The objectives of this study were to explore the difficulties of high school mathematics teachers while guiding students and to examine whether the perception of difficulties varied by gender, position, and work experience. This study randomly chose 36 mathematics teachers as participants and they were living in six cities or provinces in South Korea. The results showed that teachers experienced difficulties while guiding students, in student evaluation and teaching and learning methods, in the order of magnitude. There was no statistical difference by gender, position, and work experience. Unlike the results of previous studies suggesting that mathematics content knowledge and pedagogical knowledge would help students guide students, the results of this study revealed that they had relatively little impact on student guidance.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2004.03a
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• pp.85-92
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• 2004

As a research to develop a SCRAM jet engine is actively conducted, a necessity to produce a high-enthalpy flow in a laboratory is increasing. In order to develop the SCRAM-jet engine, stabilized combustion in a supersonic flow-field should be attained, in which a duration time of flow is extremely short. Therefore, a mixing process of breathed air and fuel, which is injected into supersonic flow-fields is one of the most important problem. Since, the flow inside SCRAM jet engine has high-enthalpy, an experimental facility is required to produce such high-enthalpy flow-field. In this study, a detonation-driven shock tunnel was built and was used to produce high-enthalpy flow. Further-more, SCRAM jet engine model equipped backward-facing step was installed at test section and flow-fields were visualized using color-schlieren technique and high speed video camera. The fuel was injected perpendicular to the flow of Mach number three behind backward-facing step. The height of the step, distance of injection and injection pressure were changed to investigate the effects of step on a mixing characteristic between air and fuel. The schlieren photograph and pressure histories show that the fuel was ignited behind the step.

• Research in Mathematical Education
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• v.16 no.2
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• pp.107-123
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• 2012

A group of twenty-nine high school student-teachers were given a set of mathematical propositions focusing on shape-to-shape transformations. Their task was to determine through hands-on manipulation and use of dynamic software that each shape be transformed into an area equivalent rectangular region. This paper reports on a classroom-based research.

• School Mathematics
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• v.1 no.2
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• pp.637-660
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• 1999

Although ‘to understand mathematics’ is an important educational purpose, most student do not have a relational understanding of the basic concept of mathematics but have a instrumental understanding. This paper will investigate the possibility of using computers for enhancing relational understanding. In the ‘Qualitative case study’, three students who are in the first grade at E-High school took part in 7 activities during four weeks, and were later interviewed and engaged in informal discussion and were observed. This is the result of this study. 1. The three students were passive participants in mathematics problem solving situation at school. Therefore, student B just applied formulas which she had memorized, and student C would forgot the formulas occasionally. These common students needed to participate actively in doing mathematics. 2. The activities utilized two software healing with connection between graphs and function, giving the students the opportunity to plan, practice, and test by themselves. As a result, they understood the mathematical formulas and rules more deeply through their own trial and error, and then they gained thinking abilities necessary for doing mathematics. In addition, the activities boosted their confidence. 3. The understanding type of students was slightly different. Student A who received a high score, understood the most relationally, but student B who received a very high score, understood instrumentally and so couldn't app1y her knowledge to solving problems related to function concept. Student C who received a middle score lacked knowledge of mathematics but thought more creatively. The result is that students need an opportunity to think rotationally regardless of score. Therefore, this study concludes that using computer software will provide a positive effect for relational understanding in loaming function concept.