• Research in Mathematical Education
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• v.11 no.1
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• pp.1-31
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• 2007

Recent research has documented that there is a close relationship between problem posing and problem solving in arithmetic. However, most studies investigated the relationship between problem posing and problem solving only by means of standard problem situations. In order to overcome that shortcoming, a pilot study with Chinese fourth-graders was done to investigate this relationship using a non-standard, realistic problem situation. The results revealed a significant positive relationship between students' problem posing and solving abilities. Based on that pilot study, a more extensive and systematic ascertaining study was carried out to confirm the observed relationship between problem posing and problem solving among Chinese elementary school children. Results confirmed that there was indeed a close relationship between both skills.

• The Journal of the Convergence on Culture Technology
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• v.1 no.2
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• pp.53-64
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• 2015

The purpose of this study was to analyze the smoking experience and attitude including affect factors to smoking for elementary schoolers. The cross-sectional descriptive study design was used. We selected 810 students from 14 elementary school located in Chungchung-do and Gangwon-do by convenience random sampling and received IRB from Y Univ. 810 students were included in the final analysis using generalized linear model. Among 810 students, 7.3% of students reported to have smoking experience. The result of analyzing the smoking affect factors for smoking students who were having friends who had smoking experience, unable to smoking suggestion and those who were male, had significantly more smoking experience. According to the results of this study, there should be an intensive tailed smoking related program development for male elementary students, especially for smokers who have smoking friend and including smoking refusing program. And the school system services of elementary school should be strengthened to protect the elementary students from further the critical situation caused by smoking experience.

• The Journal of the Convergence on Culture Technology
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• v.6 no.3
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• pp.211-216
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• 2020

The purpose of this study is to discover about the parenting anxiety of working mother and full-time mother with elementary school children, and to find ways to support them. All the study participants were 20 mothers with elementary school children. Data was collected from June 23, 2017 to July 8, 2017. Data was collected using in-depth group interviews. Parenting anxiety felt by working mothers is 'sorry about the child', 'burden on the role of parents', and 'difficulty in caring', 'Reemployment and career disconnection'. The conclusion is as follows. First, it is necessary to reduce the burden of raising children on elementary school children of both working and full-time mothers. Second, practical support plans are needed for working mothers and full-time mothers of elementary school children. Third, practical support plans are needed for working mothers and full-time mothers with elementary school children.

• Journal of Digital Convergence
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• v.18 no.7
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• pp.47-56
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• 2020

The purpose of this study is to comprehensively analyze elementary school teachers' perceptions of the use of artificial intelligence in education. Recently, interest in the use of artificial intelligence has increased in the field of education. However, there is a lack of research on the perceptions of elementary school teachers using AI in education. Using descriptive statistics, multiple linear regression analysis, and semantic differential meaning scale, 69 elementary school teachers' perceptions of using AI in education were analyzed. As a results, artificial intelligence technology was perceived as most suitable method for assisting activities in class and for problem-based learning. Factors which influence the use of AI in education were learning contents, learning materials, and AI tools. AI in education had the features of personalized learning, promoting students' participation, and provoking students' interest. Further, instructional strategies or models that enable optimized educational operation should be developed.

• Journal of Korean Elementary Science Education
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• v.38 no.3
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• pp.406-425
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• 2019

The purpose of this study is to analyze The Effect of Teacher Participation-oriented Education Program (TPEP) centered on Multi-Faceted Analysis of Elementary Science Classes on the Class Expertise of novice teacher. First, in order to develop the TPEP, lectures and exploratory science classes were analyzed using imaging and eye-tracking techniques. In this study, the TPEP was developed in five stages: image analysis, eye analysis, teaching language analysis, gesture analysis, and class development. Participants directly analyzed the classes of experienced and novice teachers at each stage. The TPEP developed in this study is different from the existing teacher education program in that it reflected the human performance technology aspects. The participants analyzed actual elementary science classes in a multi-faceted way and developed better classes based on them. The results of this study are as follows. First, at the teacher training institutions and the school sites, pre-service teachers and novice teachers should be provided with various experiences in class analysis and multi-faceted analysis of their own classes. Second, through this study, we were able to identify the limitations of existing class observations and video analysis. Third, the TPEP should be developed to improve the novice teachers' class expertise. Finally, we hope that the results of this study are used as basic data in developing programs to improve teachers' class expertise in teacher training institutions and education policy institutions.

• Journal of Fisheries and Marine Sciences Education
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• v.27 no.3
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• pp.634-643
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• 2015

The purpose of this study was to evaluate the effect of the invention animations on the invention attitudes of elementary school students. This study was conducted with a pre-and-post test experimental design. The participants were 73 students from J elementary school in Daejeon. Among them, 36 students were the experiment group and 37 students were the comparison group. Watching invention animations were conducted in a classroom everyday for 24 times. Assessments of Invention Attitudes were administered to all the participants during the pre-test and post-test. To analyze the data, the analysis of covariance(ANCOVA) was adopted. The result of this study was as follows: The experimental group who watched invention animations showed significantly higher improvement in Invention Attitudes and sub-factors of Invention Attitudes(Attentional Attitude, Emotional Attitude, Cognitional Attitude) than the comparison group. In conclusion, watching invention animations had positive effect on the invention attitudes of elementary school students.

• Proceedings of the KSPS conference
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• 2002.11a
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• pp.60-63
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• 2002

The purpose of this paper is to establish standard for selecting musical materials for teaching English pronunciation in elementary school. For this purpose, 110 songs of wee sings and the curricula of English and Music of elementary school are analyzed, and the results became the basis of establishing standards. Four standards are established and each standard divided into several steps according to the degree of complexity. And the degree of complexity of two songs are figured out to know the possibility of application.

• Journal of Korean Elementary Science Education
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• v.35 no.2
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• pp.150-165
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• 2016

This study aims to analyze types of science museum worksheets developed by elementary pre-service teachers and their perspectives on the requirements and necessity of science museum worksheets. As analysis subjects, this study selected 38 kinds of worksheets and reports developed by 114 elementary pre-service teachers who were in the third year of university of education. In this study, the science museum selected for elementary pre-service teachers to develop worksheets was a national science museum, composed of 'Nature and Discovery Museum', 'Science Technology and Industry Museum' and 'Children's Museum', which was located in a metropolitan city and opened in 2013. The results of this study can be summarized as follows; Firstly, as a result of analyzing the science museum worksheets developed by elementary pre-service teachers, this study found out that the experience type with hands-on and observation techniques applied was most, and as an approach method, direct manipulation, look-in observation and close observation were most. However, although these science museum worksheets were experience-oriented, many of them were survey-oriented ones that suggested too many questions through various exhibits. Secondly, as a result of analyzing requirements of science museum worksheets elementary pre-service teachers thought and described through the word tree of NVivo 10, this study extracted 10 kinds of main themes, out of which the requirement, 'A limited amount of activity should be required', showed the highest frequency. Thirdly, as a result of analyzing the necessity of science museum worksheets elementary pre-service teachers thought and described through the word tree of NVivo 10, this study extracted 9 kinds of main themes, out of which the opinion, 'It is required to help students check an exhibit which may be passed by', was most.

• Food Science and Biotechnology
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• v.15 no.6
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• pp.920-924
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• 2006

The microbiological safety of foodservice facilities and side dishes in 6 elementary schools and 6 universities in the Jeolla-do region was evaluated. The micro-aerosol evaluation of foodservice facilities including the kitchen, refrigerators, and freezers showed a comparatively high level of microbial contamination. In the microbial safety evaluation of cooking utensils and appliances, the total plate counts of serving tables, cutting boards, and food plates were comparatively high, but did not reveal significant counts of coliforms, Staphylococcus aureus, and Escherichia coli were both below the general limit of microbial contamination. The microbiological safety of the cooking utensils and appliances were satisfactory. In the microbiological safety evaluation of side dishes served at these foodservice facilities, microbial counts were generally below the limit of microbial contamination.

• Geomechanics and Engineering
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• v.18 no.6
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• pp.627-638
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• 2019

Estimation of representative elementary volume (REV) of jointed rock masses is critical to predict the mechanical behavior of field-scale rock masses. The REV of jointed rock masses at site is strongly influenced by stress state. The paper proposed a method to systematically studied the influence of confining stress on the REV of jointed rock masses with various strengths (weak, medium and strong), which were sourced from the water inlet slope of Xiaowan Hydropower Station, China. A finite element method considering material heterogeneity was employed, a series of two-dimensional (2D) models was established based on the Monte-Carlo method and a lot of biaxial compressive tests were conducted. Numerical results showed that the REV of jointed rock masses presented a step-like reduction as the normalized confining stress increased. Confining stress weakened the size effect of jointed rock masses, indicating that the REV determined under uniaxial compression test can be reasonably taken as the REV of jointed rock masses under complexed in-situ stress environment.