• Journal of the Korean School Mathematics Society
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• v.13 no.1
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• pp.23-43
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• 2010

This study is to investigate how much highschool students, who have learned functional concepts included in the Middle school math curriculum, understand chapters of the function, to analyze the types of errors which they made in solving the mathematical problems and to look for the proper instructional program to prevent or minimize those ones. On the basis of the result of the above examination, it suggests a classification model for teaching-learning methods and teaching material development The result of this study is as follows. First, Students didn't fully understand the fundamental concept of function and they had tendency to approach the mathematical problems relying on their memory. Second, students got accustomed to conventional math problems too much, so they couldn't distinguish new types of mathematical problems from them sometimes and did faulty reasoning in the problem solving process. Finally, it was very common for students to make errors on calculation and to make technical errors in recognizing mathematical symbols in the problem solving process. When students fully understood the mathematical concepts including a definition of function and learned procedural knowledge of them by themselves, they did not repeat the same errors. Also, explaining the functional concept with a graph related to the function did facilitate their understanding,

• Journal of Nutrition and Health
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• v.7 no.3
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• pp.15-26
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• 1974

Through the questionaire inquiry from April 1st to 10th, 1974 with 393 students in Woonho, Saekwang junior and senior highschool and Daisung, Ilshin girls' junior and senior highschool in Chungju, Choong Cheong Buk Do, I surveyed the general circumstances of students and their unbalanced diet on total 199 foods and causes of the unbalanced diet and regard the 21 boys and 29 girls who don't like to eat more than 30 foods from the given 47 protein-foods which are needed by students who are now in the stage of growth. This study is concerned with their circumstances and the causes of their ill habit of eating. 1) As to their distribution of age, 14 and 18 year old boys were six (28.5%), 11 and 13 year old girls were eleven (38.1%). In the survey on their height, 6 boys (28.5) were from 146 cm to 150 cm and 11 girls (38.1%) were from 146 cm to 150 cm. On the weight, 7 boys were from 36 kg to 40 kg(33.7%), 10 girls were from 36 kg to 40 kg (34.0%). We can see that ill habiters of eating were more weaker than other students from this data. 2) In the survey of educational level of their housewive it was found that number of graduates of the primary school is thirty (60.0%). So we can derive the fact that they don't make any variety in their daily table for their family. 3) As to their living standard, 19 boys (90.4%) and 27 girls (93.3%) belong to the middle class, low and high class were a little. This indicates the general living standard if Korea, because in common sence we regard the riches are the more ill habiters of eating. 4) 8 boys (36.8%) and 8 girls (26.8%) were the first children in their homes. This indicates the fact that housewive happen to make the first child as the ill habiter of eating because their lack of experience to give various food for their children. As to the survey on their infant nutriments, 41 students (80.2%) were fed by mother's milk. 5) Upon the causes of the unbalanced diet on a certain food, 34 boys (82.7%) and 45 girls (64.6%) were because of appearing to that food, 10 boys (40.8%) and 18 girls (61.5%) were because of the characteristic fragrance, 11 boys (52.4%) and 17 girls (58.1%) were because they have never eated that food till now, 34 boys (19.3%) and 5 girls (17.0%) were because of the bad appearance of the food. So housewive should study various ways of cooking daily meals at home and try to give their children who are in the stage of growth to be able to eat wider kinds of foods for the improvement of health.

• Journal of the Korean Home Economics Association
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• v.35 no.6
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• pp.71-86
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• 1997

The purpose of this study was to investigate the effect of parent-bonding patterns & environmental variables on rural high school students' self-differentiationf. The subjects were 600 rural high school students in the 2nd grade. The rural high school students' self-differentiation, according to parent-bonding style & environmental variables were researched with DOSS(Differentiation of self Scale) PBI(Parent-bonding Instrument) & environmental Scale. The data were analyzed by frequency & Reliability, ANOVA (scheffe'test) & Regression analysis of SPSS PC+ program. The main results were as follows. First, In P-B patterns generally frequencies of mother's care were higher than father's But in overprotection frequencies of father's were higher. Degree of rural highschool students' self-differentiation was on the level of 2.84 Second, According to parent-bonding patterns, the difference of self-differentiation were as follow. In P-B patters, father and mother on each level of P<.001 brought differences in the self-differentiation of the 4 sub-divisions Third, In short the effect on self-differentiation showed that in family environmental variables, parent's scolding, gender, family atmosphere & health conditions are crucial variables in self-differentiation and in P-B patterns, father's overprotection, mother's care, father's care are all influential on self-differentiation.

• The Mathematical Education
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• v.55 no.3
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• pp.383-396
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• 2016

This study investigated highschool students' brain waves on functional tasks such as a transition(F task) from equation to graph and the other transition(G task) vice versa. A total of 39 students participated in the study who attended a high school located in Gyunggi province. These students were divided into two groups, HMA and LMA by MASS test revised by Ko, & Yi (2012). The functional tasks for the stroop task to measure EEG were provided from a previous study, Seok(2015). The results indicated two groups on G tasks showed deeper and wider brain waves which demonstrated G tasks were more difficult than F tasks. However, HMA group had an effect of the non-psychological program which had given more chances on G tasks rather than F tasks within Students' Zone of Proximal Development. Also, HMA group's brain waves had more ranges in amplitude and width of waves. These results imply that the characteristics of students' brain waves with math anxiety are consistent to the previous studies.

• Journal of Korean society of Dental Hygiene
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• v.10 no.1
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• pp.141-156
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• 2010

Objective : This study was conducted to examine the relationships among health & oral health promotion behavior according to BMI. The subjects in this study were 704 high school students. Methods : A survey was conducted, and Chi-square, T-test, ANOVA, and Pearson's correlation coefficient were used for data analysis. The findings of the study were as follows; Results : Man is normal weight group accounted for 65.9%, and women is 69.7%(p<0.001). Health & oral health promotion behavior of nutrition(p<0.01) and exercise(p<0.001) that men were higher than women. But health responsibility was higher to women(p<0.001). As to the relationship for the BMI to health promotion behavior, nutrition is over weight group accounted for 3.45, obesity group 3.43, normal weight group 3.26 and under weight group 3.16(p<0.05). Exercise is over weight group accounted for 2.70(p<0.05), and nutrition for oral health is obesity group accounted for 3.47(p<0.05). As for correlation among the BMI, stronger social support, more exercise, better nutrition for oral health, there was a statistically significant relationship between BMI. As the factors significantly affecting BMI, their satisfaction level with exercise, nutrition for oral health, life appreciation, stress management for oral health. Conclusions : This study suggested that health & oral health promotion behavior of high school students in an effort to help improve policy setting on health projects and determine how to teach teens to promote their health throughout their lives.

• Journal of the Korean School Mathematics Society
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• v.2 no.1
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• pp.133-144
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• 1999

This study aims at identifying the effect of problem posing on the academic achievement in high school mathematics. As subjects of the study, two classes of first grade in high school were selected. One of them was treated with problem posing learning, the other was treated with learning-in-a-body. Each has 40 students and was also divided into two groups(high- level and low-level) according to their learning-level. Two instruments were used for this study. One was the teaching-learning method developed by the researcher. The other was TTCT(Torrance Test of Creative Thinking). The 't-test' was used for this study and the significant level of test was within 5 percent. The results of this study are as follows: 1. The group with problem posing learning showed significantly higher academic achievement(learning-ability) than the one with learning-in-a-body. 2. There was no significant difference in the academic achievement(creativity) between the two groups. But there was significant difference in the creative factors. 3. There was no significant differences in the academic achievement between high-level-groups in each group. 4. There was significant difference in the academic achievement (learning-ability) between low-level groups in each group. And there was significant difference in the creative factors. On the basis of the results above, the following conclusions could be made. The problem posing learning method was more effective in the academic achievement in highschool mathematics than learning-in-a-body. Especially low-level group was more effective than high-level group. These facts implies that it is more effective for a teacher to adopt the problem posing learning considering the students' learning-levels.

• Journal of Korean society of Dental Hygiene
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• v.9 no.3
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• pp.522-535
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• 2009

Surveying perception of majors to students of Department of dental technology 433(48.3%) and Department of dental hygiene 463(51.7%), and their sex rates 272 (30.4%) for males and 624 (69.6%) for females, 896 examines in total, have let us to know the level of student's perception of their majors and now able to adjust the level of major's lectures and maximize the ability to study has brought these conclusions. 1. Although the hometowns of students had similar rates between large and small cities disregarding their departments, the type of highschool had differences for the academic highschool graduators were the most. Also, CSAT was the highest than other specialized types when entering. 2. Self selection considering employment percentage was the highest for the student's choice of selecting department of dental hygiene and dental technology. 3. For the satisfaction of school and education systems, "satisfied" and "normal" were as high as 74% in both department of dental hygiene and dental technology for school satisfaction, and 75%, 74% for satisfaction of environment from the two departments. 4. As for the satisfaction of department and environment, department of dental hygiene and dental technology both answered "satisfied" and "normal" the most, but in satisfaction of companions, they have shown relatively high satisfaction by answering "very satisfied" and "satisfied". 5. Difficulties of majors relating to the perception of learning, department of dental technology and dental hygiene both answered too much to memorize and hard to understand. 6. Department of dental technology's try for majors relating to the level of perception of learning have shown that they have high understandings in proportion to how much they try but for department of dental hygiene has shown not much differences. 7. Department of dental hygiene had higher stress than department of dental technology in studying majors and there were both some differences statistically.

• Journal of Digital Contents Society
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• v.1 no.1
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• pp.89-101
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• 2000

Korea Infomatics Olympiad is the kind of promotion program for future's talent in computer part. It is 17th since 1984 - 1st tournament. It must have a great change. That's why it's targets are just primary, middle school and high school students. So it must spread their scopes especially in university student, industrial highschool students and publics as like globalization and business area.

• Korean Journal of Psychosomatic Medicine
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• v.3 no.1
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• pp.28-38
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• 1995

The purpose of this study is to investigate the relationship between irrational belief and psychopathology. The Korean version of Symptom Check List-90-R and Irrational Belief Test were administered to 621 high school students in group. The author used Pearson correlation coefficiency and multiple regression analysis to seek the regression patterns of the irrational belief. The results were as follows. 1) Most of the subscales of the SCL-90-R and Irrational Belief Test were correlated significantly. 2) In multiple regression analysis, the irrational belief associated with anxious overconcern was the most predictable variable for psychopathology.

• The Mathematical Education
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• v.48 no.2
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• pp.113-139
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• 2009

In this study, we apply the discovery method in the instruction of Permutation and Combination, and examine the effect upon the student's emotion after the instruction change. The research progressed through the instruction by the discovery method for two students of highschool Y. This research has been done for about one and half year from November 2006 to February 2008. We draw our research results through a series of processes consisted of videotaping a classroom activities, recording interview details and writing an observation diary, with the aim of the experimental instruction. In the end, we get to the conclusion that students showed a strong positive attitude on the discovery instructional method and that diverse discovery method has supplementary relation in classwork.