• Journal of the Korean Chemical Society
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• v.66 no.6
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• pp.493-508
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• 2022

Chemistry is the subject which includes properties, change, and composition of matter. Chemistry has the system which explains observable properties and change with microscopic level, it explains them using scientific theory and laws. In the national-level curriculum, the properties and changes of matter are continuously dealt with from elementary school to high school, and the curriculum are organized so that students could strengthen their understanding about matter. In other words, understanding of the properties and changes of matter is the base to explain everyday life with the view of chemistry, and these two are classified as domains of chemistry in the 2015 revised science curriculum. In this study, we confirmed students' understanding about properties of matter and change of matter, through the analysis about results of the National Assessment of Educational Achievement (NAEA). For that purpose, this study analyzed the 12 items about properties of matter, and 19 items about change of matter, which were used in the NAEA from 2015 to 2019. According to the results of classifying and analyzing questions according to the core concept, the understanding about the two domains significantly changed between the proficient achievement-level students and basic achievement-level students. Depending on the achievement-level, there was a difference in explaining the phenomenon by using the perspective of particles, and by associating scientific concepts and models, or there was a difference in understanding the inquiry related to these two domains. Based on this analysis, this study discussed some implications to be improved on teaching-learning for 'properties of matter', and 'change of matter'.

• The Journal of Korean Academic Society of Nursing Education
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• v.22 no.1
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• pp.34-41
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• 2016

Purpose: This study was conducted in order to explore the factors affecting the hope in nursing students. Methods: A total of 166 nursing students participated in the study. Data was analyzed using SPSS WIN 18.0. Results: The mean scores for social support, self-efficacy, and hope were above-average level. There were significant mean differences in hope according to religion, academic achievement, and satisfaction with nursing majors. Hope correlated positively with social support and self-efficacy. The significant predictors of hope included social support and satisfaction with the nursing major. The regression model explained 12.7% of hope. Conclusion: To improve hope in nursing students, nursing educators should focus on promoting their social support and satisfaction with the nursing major.

• Journal of Educational Research in Mathematics
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• v.21 no.1
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• pp.87-103
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• 2011

The purpose of this paper is to investigate the effects on academic achievement for university basic mathematics in order to improve the problem-solving abilities of low achievement students in university general mathematics. In this paper, we suggest effective management strategies and teaching-learning methods according to level-based classes with utilizing scholastic level assessment, students survey, Mathematics Cafe and tutorial program, and also managing demonstration classes which are using Webwork system for assignments and evaluating the class.

• Journal of The Korean Association of Information Education
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• v.18 no.2
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• pp.213-224
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• 2014

STEAM learning, which combined software with hardware, can greatly increase algorithm improvement, problem-solving skills, integrated thinking ability etc. and can ultimately improve learning attitude and academic achievement. In this study, we developed STEAM learning model so that 6th graders who can fully understand the basic concept of programming can learn subject contents of national textbooks (5 kinds) with programming that combined six sensors attached Sensor_board with Scratch and applied it to 6th grade class and analyzed the results. As a result, the STEAM learning tool that combined Scratch with Sensor_board was analyzed to be suitable for most elementary school students to be evaluated. In the achievement evaluation of learning, 39.5% of students obtained more than 7 points out of perfect 10 in the average achievement level of 5 subjects so most students evaluated were analyzed to obtain satisfactory achievement. Therefore, STEAM learning using Scratch and Sensor_board, hardware is considered to be more effective than existing software-centered ${\times}$learning using only software.

• (The)Korea Educational Review
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• v.24 no.1
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• pp.199-225
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• 2018

Using the 3rd to the 6th wave data from the Korean Children and Youth Panel Survey(KCYPS), we examined the effects of academic characteristics and social relations on the trajectories of the life satisfaction among adolescents. OLS results showed that male students were more satisfied with their lives than female students in the 3rd grade of middle school. As academic characteristics, academic achievement and the level of class adjustment improved life satisfaction but the amount of learning time spent had a negative effect on life satisfaction. However, the effect of academic achievement lost its statistical significance after including variables of social relations. Relationships with parents, teachers, and friends had positive effects on life satisfaction. The longitudinal analysis using the fixed effect estimation also showed a similar result of the associations among the variables to that in the OLS analysis. The life satisfaction gap between male and female students narrowed over time from the 3rd grade of middle school to the 2nd grade of high school. The effects of relationships with parents and friends showed significant effects on both female and male students, but the relationship with their teachers was significant only for female students. Based on the results, we discussed the issues of Korean education related to the life satisfaction among adolescents.

• Journal of Korean Elementary Science Education
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• v.34 no.1
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• pp.142-152
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• 2015

The purpose of this study was to identify the differences in eye movement pattern shown in shown in classification process between the scientifically gifted and general students in elementary schools. The subjects for the research consisted of 16 gifted students in special education center for the gifted at Seoul National University of Education and 22 general students at G elementary schools. The tasks consisted of four hierarchical biology classification tasks and one non-hierarchical tasks. SMI's Eye Tracker (iView $X^{TM}$ RED) was used to collect eye movement data while the Begaze software analyzed the task performing process and eye movements. The findings of this study were twofold. First, there was a significant difference in students' fixation duration by students' academic achievement level. Gifted students spent little time on scanning details and found the features successfully. Second, the process of the classification is different by students' academic achievement. General students spent more time to gaze the salient features not relevant features. They had a difficulty to find the element to classify.

• Journal of Korean society of Dental Hygiene
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• v.15 no.3
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• pp.505-512
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• 2015

Objectives: The purpose of this study was to compare the oral health behavior in adolescents between multicultural and ordinary Korean families. Methods: The subjects were 66,797 adolescents who were derived from the web-based survey of the National 2014 Korean Youth Risk Behavior of Korean Center for Disease Control. A self-reported web-based questionnaire survey was carried out from June 1 to 30, 2013. A multicultural family is defined as the immigrant mother and child in the study. The variable included demographic, socioeconomic, and oral health related behavior. The demographic characteristics included sex, age, residence area, subjective academic achievement, type of family, education of parents, subjective economic status, and nationality before marriage. Data were analyzed by PASW statistics 18.0. Results: Tooth brushing frequency was closely related to family type, age, residence area, academic achievement, residential type, education level of the parents, and economic status. Conclusions: It is necessary to support oral health services and oral health promotion programs for the adolescents in the multicultural family.

• Journal of the Korean Home Economics Association
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• v.48 no.5
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• pp.119-128
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• 2010

The purpose of this study investigated the effects of personal variables(gender, grade, self-esteem, and depression) and family variables(economical level, marital conflict, and parenting behaviors) on the children's school adjustment(school interest, academic achievement, observance of school regulation, and friend relationship) of children in divorced families. The participants were 165 children in divorced families(73 boys and 92 girls). The results were as follows. First, children's school interest was affected by depression, self-esteem and grade. Second, children's academic achievement was affected by depression and grade. Third, children's observance of school regulation was affected by gender, grade, self-esteem, and parenting behaviors. Fourth, children's friend relationship was affected by depression, parenting behaviors, self-esteem, and gender. Fifth, children's school adjustment was more influenced on children's personal variables than children's family variables.

• Journal of the Korean Society of Radiology
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• v.6 no.3
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• pp.173-182
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• 2012

It was well known that working memory highly related with academic achievement. The aim of this study was to investigate the differences of brain activation which visually evoked working memory(encoding and retrieval) through functional Magnetic Resonance Imaging(fMRI) in Higher Academic Achievement Group(HAAG) and Lower Academic Achievement Group(LAAG) of college students. 20 assigned college students participated in fMRI studies. They underwent totally 210 seconds repeated paradigm. Stimulation paradigm composed with resting time and encoding and retrieval seeing the figures from the mirror with head coil. The brain activation maps and their quantification were analyzed by the statistical parametric mapping(SPM99) program from level of significance 95%. HAAG was more significantly higher than LAAG in bilateral prefrontal lobe(brodmann 46) associated with working memory, inferior parietal lobe associated with attention, and visual association area in encoding figures test. Right dosoprefrontal lobe(BA 44), right fusiform gyrus associated with decision of figure and, lingual gyrus were more activated in retrieval test with HAAG. On the other hand, LAAG was more significantly higher than HAAG in cingulate gyrus during encoding test. Thalamus, basal ganglia, cerebellum were more activated in retrieval test. Consequently, We could guess from these results HAAG more effectively executed than LAAG in visual working memory test.

• Journal of the Korea Convergence Society
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• v.7 no.4
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• pp.85-96
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• 2016

This study aimed to provide basic data required for operation and development of a program that is necessary for linkage with the major as well as proper settlement of community service of the university by identifying university students' major satisfaction and academic achievement level in relation with the characteristics of community service. A survey was conducted in 401 university students who voluntarily participated in this study using the online survey panel targeting university students who reside in Busan and South Gyeongsang Province from December 1, 2014 to February 1, 2015. The results are as follows. Students who had a community service experience and had higher participation in community service showed higher major satisfaction and academic achievement. Particularly, when community service was related to the major, major satisfaction was higher. In addition, the higher the satisfaction with community service was and the higher the need of community service was, the higher the major satisfaction was. Students with health major showed higher major satisfaction than students with non-health major. Therefore, development of an effective program will be necessary to increase the need and participation of community service and revitalize community service more continuously.