• Journal of The Korean Association of Information Education
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• v.14 no.3
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• pp.311-318
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• 2010

In this paper, we proposed the integrated education program of informatics and math for solving problem using EPL. We applied a integrated math curriculum with EPL and analyzed mathematical thinking and attitude to the 3rd and 5th students. We used mathematical thinking test, mathematical attitude test and interview through student review. We also analyzed data of observers who are elementary school teachers. The results of test are as follows; First, we found effective points of meta-cognition and visualization of thought in solving the mathematical problem using Scratch. Second, mathematical thinking and attitude showed the result that 3rd grade students are more increased than 5th grade students in pre and post t-test of the mathematical. Consequently, we expect that the integrated education program of informatics and math using EPL can be applied to solve problem in math effectively.

• Journal of Families and Better Life
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• v.32 no.3
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• pp.99-114
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• 2014

The purpose of this study is to investigate the relationship between moral cognitive distortion and peer bullying of children and adolescents. For this study, questionnaires on moral cognitive distortion and peer bullying were administered to 678 students in the 4th, 5th, 7th, 8th, 10th and 11th grades in elementary, middle and high schools located in the metropolitan area of Seoul. The data were analyzed through frequency analysis, mean and standard deviation, t-test, two-way ANOVA, Pearson's correlation and stepwise multiple regression analysis using SPSS Win 12.0. The main findings of this study are as follows: 1) While grade had a significant influence on the moral cognitive distortion of children and adolescents, gender did not. On bullying perpetration and bullying victimization, both gender and grade had a significant influence. 2) Moral cognitive distortion had a significant influence on peer bullying. More specifically, for elementary school students, the variables affecting bullying victimization and bullying perpetration were found to be worst-case-scenario thinking and other-blame thinking, respectively. For middle school students, victimization was affected most significantly by worst-case-scenario thinking, followed by gender; perpetration was most significantly affected by worst-case-scenario thinking. For high school students, victimization was affected most significantly by other-blame thinking, followed by gender; perpetration was most significantly affected by other-blame thinking.

• Journal of The Korean Association of Information Education
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• v.9 no.3
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• pp.367-376
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• 2005

As computers are recognized as essential tools for our life and society, the use of computers has become increasingly important in education. The propose of this study is to grasp the level of students' understanding on basic terms used in computer textbooks for $4th{\sim}6th$ graders in Chungbuk and to investigate the existence of differences in students' understanding according to personal variables. The result of this study indicates that the level of students' understanding on basic terms in computer textbooks is very low. Also significant differences are found in students' understanding of terms according to location, grade, the possession of computers, computer-related learning experiences, instructional methods used in computer classes, interest in computer classes, participation level in computer classes and grade level.

• Journal of Korean Elementary Science Education
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• v.40 no.2
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• pp.227-238
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• 2021

Ecocentric worldview is considered as worldview that overcomes present environment problems and increases animal right. This study explores the formation of an ecocentric worldview for 4th-6th graders based on Peter Singer's research that divides the development of morality into family-centered, species-centered, and ecocentric worldview. The subjects of this study were 77 4th graders, 84 5th graders, and 91 6th graders in Daegu Metro- politan City. The results of surveying students' worldview based on the questionnaire developed by dividing into 6 questions are as follows. In most of the items in grades 4-6, the rate of formation of a species-centered worldview or a family-centered worldview was higher than that of an ecocentric worldview. However, in the case of 6th grade students was significantly higher than in other grades because they learned lesson on wolf restoration in the 5th grade science class. This may be seen as an effect of education, but since the ecocentric worldview did not appear high in other questions, it is reasonable to assume that 6th graders simply recited what they learned rather than forming a true ecocentric worldview. Therefore, there is a need for education that can help students to think, judge, and act on the basis of the ecocentric worldview consistently in any situation, rather than just memorizing the knowledge of the ecocentric worldview learned.

• Journal of Fisheries and Marine Sciences Education
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• v.28 no.5
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• pp.1183-1197
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• 2016

The purpose of this study is to develop a Puzzle-Based Computer Science Instruction Model and Learning Program and to confirm the effects. To do so, we selected 2 classes with a similar level of pre-computational thinking in elementary schools in the Jeju Province. After that, from 2 classes, we designated the 5th grade students in 'D' elementary school as group A and designated students of the same grade in 'J' elementary school as group B. In a total of 28 sessions during an 18 week period, a Puzzle-Based Computer Science Learning Program was used with 31 students in group A, and the traditional computer science course was used with 25 students in group B. The results showed that there were significant improvements in computational thinking, which is computational cognition and its creativity, of the students in group A compared to students in group B. Also, this study proved that the Puzzle-Based program correlated with positive changes group A students' Science-Related Affective Domain. In this paper, on the basis of proven effectiveness, we introduce the Puzzle-Based Computer Science Instruction Model and Learning Program as an alternative to traditional, computer science education.

• Korean Journal of Health Education and Promotion
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• v.10 no.2
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• pp.40-55
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• 1993

To obtain information about knowledge and attitude toward sex, sexural experience and need of sex education, a questionnaire survey was conducted on 599 students who were attended in 2nd grade of 2 girls' high schools(A group: 190 girls), 2 vocational girls' high schools(B group: 205 girls), and 2 special girls' high school attached to industrial company(C group: 204 girls) in Taegu city between 20th and 25th April 1992. Mean score of knowledge toward sex of the total was 9.3. Mean score of A group was higher than that of Band C groups. Among the total students, vocational high school girls were the highest affirmative attitude towards the acquaintance and relationship with the other sex, and the next was special high school girls. Students of B group assumed the highest negative attitude towards artificial abortion, and the lowest was A group. Among the respondent girls, 31.1% did not experienced in the acquaintance and relationship with the other sex and 86 girls(14.4%) had experience with sexual affairs. Most of girls(96.9% of A group, 90.4% of B group and 86.8% of C group) agreed to necessity of sex education, and answered that current education on sex was insufficient to them(80.6% of A group, 82.6% of B group and 62.4% of C group). Among what the surveyed girls wanted to know about knowledge towards sex, they showed the highest interest on the acquaintance and relationship with the other sex(A group: 44.7%, B group: 45.4%, C group: 56.4%). And they showed the second highest interest on pregnancy and delivery(A group: 33.2%, B group: 32.6% , C group: 26.5%). There was no unique difference among each surveying item. Most of the students(A group: 46.8%, B group: 40.1%, C group: 36.3%) thought it better that the time they wanted to get education on sex in 5th or 6th grade of elementary schools and to have a regular curriculum on sex education.

• Journal of Elementary Mathematics Education in Korea
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• v.17 no.2
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• pp.321-350
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• 2013

The purpose of this study to analysis of problem posing in 5th and 6th grade mathematics textbooks and to comprehend errors in the problem posing activity of 6th graders in elementary school. For solving the research problems, problem posing contents were extracted from mathematics textbooks and practice books for the 5th and 6th grade of elementary school in the 2007 revised national curriculum, and they were analyzed, according to each grade, domain and type. Based on the analysis results, 10 problem posing questions which were extracted and developed, were modified and supplemented through a pre-examination, and a questionnaire that problem posing questions are evenly distributed, according to each grade, domain and type, was produced. This examination was conducted with 129 6th graders, and types of error in problem posing were analyzed using collected data. The implications from the research results are as follows. First, it was found that there was a big numerical difference of problem posing questions in the 5th and 6th grade, and problem posing questions weren't properly suggested in even some domains and types, because the serious concentration in each grade, type and domain. Therefore, textbooks to be developed in the future would need to suggest more various and systematic of problem posing teaching learning activity for each domain and type. Second, the 'error resulting from the lack of information' occurred the most in the problems that 6th graders posed, followed by the 'error in the understanding of problems', 'technical errors', 'logical errors' and 'others'. This implies that a majority of students missed conditions necessary for problem solving, because they have been used to finding answers to given questions only. For such reason, there should be an environment in which students can pose problems by themselves, breaking from the way of learning to only solve given problems.

• The Korean Journal of Food And Nutrition
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• v.31 no.5
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• pp.668-676
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• 2018

The purpose of this study was to investigate the quality attributes and importance that affects their satisfaction with respect to lunchboxes amongst children from low-income families in Korea. In case of $1-3^{rd}$-grade elementary school, 57.1% received lunch box through the community child center, while 45.2%, 68.5% and 80.7% of $4-6^{th}$-elementary school, middle school, and high school students received the lunch box from home, respectively. Typically, in 40.2% of all grades, the time to eat the meal was within 1~2 hours of delivery, and 34.0% consumed the lunch within 2~6 hours of delivery. With respect to intake of the contents of lunchboxes, 72.0% of the participants answered that they ate 80% of the lunchboxes delivered and 24.9% only ate 50% of the content of lunchboxes. The largest leftover were vegetables (26.9%), and the reason for leaving food was 'do not like to eat (36.1%)' followed by 'no taste (32.6%)'. Regarding improvements in delivery lunchboxes, elementary school students selected 'taste', while middle school and high school students selected 'variety of menu'. The 'nutrition (3.69 point)' of the lunchboxes was the highest satisfaction and the 'variety of menu (3.34 point)' was the lowest. In all grades, 'nutrition' and 'hygiene' were considered to be important as quality attributes of the delivery lunchboxes, and satisfaction was also high. On the other hand, in the $1-3^{rd}$-grade elementary school, 'variety of menu' and 'amount of side dish' were important but satisfaction was low. The $4-6^{th}$-grade elementary school, middle school and high school students stated that 'taste' and 'variety of menu' were important, but satisfaction was low.

• Journal of the Korean Chemical Society
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• v.63 no.5
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• pp.376-386
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• 2019

The purpose of this study was to explore the learning progression of logical thinking in acid and base chemical reactions and to evaluate its validity. For this purpose, we collected 387 participants in 9 schools of elementary, middle and high schools nationwide. The questionnaire developed in this study was composed of nine items. The questionnaire presented the acid and base reactants and products, and the students pictured their thoughts on how these substances change, and answered the reasons of their thoughts. Situation contexts of the questionnaire were divided into two groups: one kind of solute dissolved in a solvent, and two kinds of solute dissolved in a solvent. In this study, six levels of learning progression were assumed by combining material conservation logic, combination logic, proportion logic, and particle number conservation logic. By analyzing the data, Infit and Outfit values of Person reliability, Item reliability, MNSQ and ZSTD were obtained from the Rasch model. As a result of the analysis of data, it was found that lower levels of learning progression prevailed up to the younger grade students till $8^{th}$ grade. The higher levels of learning progression(Level 2~Level 5) prevailed up to the older grade students. However, higher levels of learning progression dropped sharply in Grade 12. The 5 level of learning progression was very low in all grades, and $9^{th}$ grade had highest percentage of students belonging to the 5 level. Interpretation of these unusual results suggests a future research related to explanation differences of textbooks.

• Journal of the Korean Society of School Health
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• v.20 no.2
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• pp.81-89
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• 2007

Purpose: The Purpose of this study was to compare stress level and stress coping behavior of elementary students in southern and northern area of Han river. Methods: This was a descriptive comparative survey using a convenience sample of 403 5^th-and 6^th-grade students. The data were analyzed by X²-test, t-test, ANOVA and multiple regression using SPSS 11.5 statistical program. Results: The level of stress and stress coping behavior according to northern and southern elementary students of seoul, Stress levels tended to increase more significantly with less satisfied life, more study time, in female students than male students. in northern students, and with more individual factors. With regard to stress coping behaviors. students with higher life-satisfaction tended to use active coping, and female students used more positive and mystic coping than negative coping. Conclusion: Students living in northern area, and more female students than male students showed a high level of stress, and students with a higher stress level were better able to cope with stress. Thus, it could be concluded that programs to lower stress levels are needed more than stress intervention programs.