• Korean Journal of Human Ecology
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• v.24 no.6
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• pp.755-768
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• 2015

The purpose of this study was to verify the mediating effects on self-regulated learning ability and sense of community in the relationship between parents' neglect and children's academic achievement. The subjects used in this study were 2,218 6th grade elementary school students from the third wave sample of the 2012 Korean Children and Youth Panel Survey (KCYPS). For data analysis, the three-step mediated regression analysis by Baron and Kenny (1986) was performed and the Sobel test was carried out in order to verify the effectiveness of mediation effects. The main results of the present study were as follows. First, the self-regulated learning ability and sub-component factors of achievement value, mastery goal orientation, behavioral control, academic time-management revealed to have a partial mediation effect in the relationship between parents' neglect and children's academic achievement. Second, the sense of community also showed to have a partial mediation effect on the relationship between parents' neglect and children's academic achievement. The findings of this study provide a viewpoint to deeply observe the problem of parents' neglect in connection with children's self-regulated learning ability and sense of community, and can be used as practical data to develop various programs for the benefit of improving children's academic achievement.

• Journal of Science Education
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• v.38 no.3
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• pp.625-640
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• 2014

In 21st century, it is essential to understand Nature of Science (NOS) related to science educational curriculum. The study analyzed Earth Science components of third- through sixth-grade science textbooks in terms of incorporated NOS themes and their relative proportions. Modified analysis methods of Chiappetta et al. (1991) and Lee (2012) are devised and adapted. The results of analysis indicates that the current elementary school textbooks include and explain all the four themes of NOS, but do not include sub-areas of each theme of NOS in a balanced way. In addition, the themes of NOS in Earth Science are not treated equally among different grades. Such results warrant the efforts to include balanced themes of NOS into elementary school science textbooks with the ultimate goal of fully and properly comprehending NOS to the students.

• Journal of the Korean Society of Earth Science Education
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• v.2 no.1
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• pp.48-54
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• 2009

This study aims to find out any effect of a POE model in the earth science unit of middle school(POE: prediction-observation-explanation). So this report compared and analyzed the effect that POE class and teacher-oriented class have on the level of learner science process skill and science academic achievement. Two groups, which were composed of 66 students and 64 students of middle school 2rd grade in Gyeongsangnamdo for this study, respectively, were selected as an experimental group and a comparative group. Through the pretest, the level of learner science process skill and science academic achievement were investigated. And learner science process skill and science academic achievement was verified with t-test. The findings of the study are as follows: First, as a result of analyzing the pre-test and the post-test for finding out the effect of class offering the POE model on learner science process skill, the class offering the POE model was shown effective for improving learner science process skill. However, the POE class was found significantly effective for improving the sub-factors of operationally defining, designing investigations, graphing and interpreting data, but not effective for identifying and stating hypothesis, identifying variables. Second, as a result of analyzing the pre-test and the post-test for finding out the effect of class offering the POE model on learner science academic achievement the class offering the POE model was shown effective for learner science academic achievement.

• Journal of Elementary Mathematics Education in Korea
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• v.14 no.3
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• pp.865-884
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• 2010

The purpose of this research was to analyze the characteristics of teachers' questionings in the geometry field and suggest the characteristics of teacher questioning to enhance students' mathematical creativity. Teacher questioning plays a role to students' mathematical achievements, mathematical thinking, and their attitudes toward mathematics. However, there has been little research on the roles of teacher questioning on students' mathematical creativity. In this research, researchers analyzed teachers' questions concerning the concepts of triangles in the geometric areas of 4th grade Korean revised 2007 mathematics textbooks. We also analyzed teachers' questionings in the three lessons provided by the Jeju Educational Internet Broadcasting System. We classified and analyzed teachers' questionings by the sub-factors of creativity. The results showed that the teachers did not use the questionings that appropriately enhances students' mathematical creativity. We suggested that teachers need to be prepared to ask questions such as stimulating students' various mathematical thinking, encouraging many possible responses, and not responding with yes/no. Instead, teachers need to encourage students to explain the reasons of their responses and to take part in learning activities with interest.

• Korean Journal of Construction Engineering and Management
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• v.8 no.6
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• pp.139-149
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• 2007

The purpose of this study is to examine the problem of BTL(Build Transfer Lease) projects through comparative analysis on running costs, focusing on primary school, junior and senior high school education facilities, and then to provide useful information on the estimation of running costs by suggesting valid cost criteria. For this, eight schools from A and B consulting firms were sampled from capital region and other areas. Sampled schools were classified into four categories according to school grade, and running cost data are collected and analyzed from relative view points. The results of this study are as follows: 1) running costs which are analyzed by categories show some difference among sub-items, 2) major problems related to running cost prediction of BTL projects are revealed and improvement schemes are suggested for two groups (Owner and Project applicants).

• Journal of Digital Convergence
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• v.14 no.8
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• pp.487-496
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• 2016

This study aims to explore the present condition of job preparation of students in the department of physical education in depth so that convergence talents with professional physical education abilities can be trained and physical education majors can establish themselves in adverse conditions such as the reduction of the entrance quota and a lack of cases of research on job training in the departments related to physical education by the college evaluation of the Ministry of Education and to present a direction of career training. In order to analyze the relationships among sub-factors according to the level of perception of physical education-related majors, methods such as MANOVA and correspondence analysis were used. The results obtained through the research are as follows: First, it turned out that it is important to carry out career training in advance, considering physical education-related college students' aptitude and talent by grade. Second, it turned out that it is important to alleviate the problem of employment barrier in the preparation for career fast. Third, it turned out that it is important for us all to make efforts to expand the types of physical education-related employment and provide opportunities.

• Journal of Korean Society on Water Environment
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• v.34 no.5
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• pp.494-502
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• 2018

The purpose of this study was to understand distribution characteristics of organic matters through concentration of $BOD_5$, $COD_{Mn}$ and TOC in 31 streams in Han River region, and to establish the relationship among organic matter concentration, and discharge load and flow rate. Concentration of $BOD_5$ and TOC in 22 streams were above IV grade except 9, and the average 80.9 % of total organic matter (by TOC) accounted for dissolved organic type. Correlation among organic matter parameters were higher ($r^2$ > 0.78) and the relationship between TOC and $COD_{Mn}$ concentration was higher than $BOD_5$. Ratio of biodegradable organic matter/total organic matter in the 31 streams was estimated at 41.4 % with $BOD_5$ oxidation rate, and 78.0 % with $BOD_5/COD_{Mn}$ concentration ratio. Ratio of $NBOD/BOD_5$ concentration in four sites with $BOD_5/COD_{Mn}$ concentration ratio exceeding 1 ranged from 54.5 % ~ 79.3 %. Among 979 flow rate data measured at 31 streams, 87 % of measured data was below 0.1 cms and increased water pollution under low flow conditions. Correlation between $BOD_5$ concentration and $BOD_5$ discharge load in the watershed was low, and it was revealed that several streams have more $BOD_5$ delivery load than $BOD_5$ discharge load. Results suggest that many biodegradable forms of organic matter are being introduced into the stream from pollutant sources in the watershed.

• Journal of Korean Elementary Science Education
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• v.19 no.2
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• pp.29-41
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• 2000

The purpose of this study is to examine the effects of the Portfolio applied science instruction on the students' scientific affective domain and perceptions of portfolio in elementary schools. Portfolio applied science instruction of the 6th grade science unit 'Environment pollution and Nature protection' was developed for this study. Traditional instruction was implemented to the control group and portfolio applied science instruction was implemented to the experimental group. Pretests of the scientific affective domain were administered to both groups. The treatment was given for about seven weeks for both groups. Instruments about scientific affective domain were administered to both groups. A questionnaire on perception of portfolio applied science instruction was given to the experimental group after the treatment. The results were analyzed using t-test on the students' scientific affective domain. The results of this study are as follows: 1. Portfolio applied science instruction program for elementary schools was developed. Students themselves determine the portfolio learning goal in a portfolio applied science instruction. Students construct the portfolio and they evaluate themselves and other colleagues. Also teachers go on portfolio applied science instruction considering portfolio purpose, concepts, evaluation. 2. There was not a statistically meaningful difference between an experimental group and a control group o]1 the students' scientific affective domain. In three sub categories of a scientific affective domain, the science perception, the interest on science and scientific attitude, there were not statistically meaningful difference among them. 3. As the results of the questionnaire on perceptions of portfolio, they didn't understand it very well but after learning portfolio, they showed positive attitude to perceptions of portfolio. Students in portfolio applied science instruction like more the portfolio applied science instruction than general instruction. 4. Portfolio applied science instruction has an useful value as a method of teaching and evaluation. Students and teachers can produce various portfolios products in portfolio applied science instruction. As a conclusion, portfolio applied science instruction was not statistically meaningful on the students' scientific affective domain, but it gives positive effects on perceptions of portfolio in elementary schools. Therefore, portfolio has an educational value as a method of teaching and evaluation for students' growth. In the future, teachers and students must have interaction and feedback in portfolio applied science instruction.

• The Journal of the Convergence on Culture Technology
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• v.6 no.2
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• pp.357-367
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• 2020

This study is a qualitative study conducted to understand and explain the operating room practice experience of nursing college students. Participants in this study were 67 nursing college students in 3rd and 4th grade at a university in C-gun, Gyeongsangbuk-do who participated in the practice of operating rooms. The data collection period was from January 14, 2019 to January 13, 2020, and the data collection was carried out through an open self-report-style reflection log, and the collected data was analyzed using the traditional content analysis method of Krippendorff [21]. Analysis of the operating room practice experience of nursing college students resulted in 27 sub-themes, 12 themes and 5 categories. The five categories are "Being seized with complicated feelings," "Being faced with dissection body," "Learning the characteristics of the operating room, " "Being confronted with the limits of clinical practice" and "Self-reflection." The results of this study provided an understanding of the operating room practice experience of nursing students and are expected to be used as basic data to improve the quality of practice of nursing students.

• Journal of The Korean Association of Information Education
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• v.21 no.3
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• pp.285-296
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• 2017

In this study, we conduct SW education using robot in elementary school, to examine the effects of SW education using robot on CT and gender differences. In order to achieve the purpose of this study, SW education using robot was conducted to 143 students in 5, 6 grade in GyeongGi. After collecting data, we examined mean difference using matched pair t-test and ANCOVA. The results of this study were as follows: The SW education using robot is associated with significant improvements in CT, however, computational concepts is not associated with significant improvement in high initial score sub sample. And CT is not associated with gender. This study was investigated effects of the SW education using robot and identify gender differences. And expanded the understanding of the SW education using robot.