• Journal of The Korean Association of Information Education
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• v.23 no.3
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• pp.245-254
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• 2019

In the 2015 revision curriculum, software education must be conducted for 17 hours in elementary school fifth or sixth grade. Pre_service elementary teachers should be able to teach software. In this study, learning factors according to the achievement criteria for software education will be defined for pre-service elementary teachers. Pre-service teachers were taught by learning elements. As a result, the pre_service teachers were able to create teaching and evaluation materials for each learning element. It was also found that the pre-service teachers improved their ability to teach software education in elementary school based on these materials.

• Journal of the Korea Safety Management & Science
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• v.17 no.4
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• pp.1-12
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• 2015

Recent construction site large disaster occurs in, even normal disaster not be reduced, the efforts of pre-disaster prevention for this is also a need to study the evaluation index. By comprehensive examination zero reform the current lowest bid system has included the social responsibility index is scheduled, objective and quantitative evaluation indicators making construction safety areas that are included in the item of social responsibility is required ing. In this study, the construction, in order to prevent disasters, efforts pre disaster prevention be presented metrics in the construction safety in the field of comprehensive examination system and the evaluation index, it is intended to examine the evaluation items for the evaluation indices.

• ETRI Journal
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• v.38 no.1
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• pp.206-215
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• 2016

The detection of gene-gene interactions during genetic studies of common human diseases is important, and the technique of multifactor dimensionality reduction (MDR) has been widely applied to this end. However, this technique is not free from the "curse of dimensionality" -that is, it works well for two- or three-way interactions but requires a long execution time and extensive computing resources to detect, for example, a 10-way interaction. Here, we propose a boosting method to reduce MDR execution time. With the use of pre-evaluation measurements, gene sets with low levels of interaction can be removed prior to the application of MDR. Thus, the problem space is decreased and considerable time can be saved in the execution of MDR.

• Journal of the Korean Society for Library and Information Science
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• v.21
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• pp.141-168
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• 1991

The Purpose of this study is to explore and analyse ways of enhancing the effectiveness of reference service through reference evaluation. Marketing research technique combined with pre-evaluation theory was applied in this study to find out information for practice the service based on current concept of reference service. Aims and results of this study can be summarised as follows: First, the evaluation of effectiveness of reference service should be conducted for the purpose of finding out the ways of increasing user's satisfaction. Second, the policy evaluation was understood as the appropriated evaluation concept. The policy evaluation in principle coincides with reference service in sense that the satisfaction of public should have priority and hence be the criterion of the evaluation. Third, marketing research based on recently developed 'marketing concept', which concentrates all its efforts to meet user's demand and attempt to acquire the information for better marketing management of non-profit organization such as library, is examined to find out the evaluation method practically applicable to the pre-evaluation of reference service. In this study , conjoint analysis was adopted as the method of pre-evaluation about reference service. The Reference Room of the Central Library Yonsei University, was selected as the arget sample to find out the expected condition for the maximization of the user's satisfaction from the reference service. Based on this example study, the analysis indicates as the most desirable combination for reference service in terms of the user's satisfaction is following condition: the younger librarian with aimable personality who displays willingness In his/her assistance, plus as the method of reference service, sufficient and practical introduction to the reference materials available, plus immediate and satisfactory result of the service, and finally a library equipped with inter-library use system.

• Journal of The Korean Association For Science Education
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• v.30 no.6
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• pp.836-849
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• 2010

The purpose of this study is to analyze changes of competency observed in teaching of pre-service science teachers through the teaching evaluation and reflective journal writings on science class during the period of student-teaching at high school. To do this, we videotaped all the science classes of six pre-service teachers participating in this study, evaluated their class teachings, and collected moving video clips recorded in their classes, reflective journals, interviews, instructional materials, and teaching evaluation they have provided. From the "Standards for teaching evaluation of science instruction" developed by Korea Education Curriculum and Assessment, sixteen evaluation elements were selected and used for the analysis. According to our results, all preservice teachers show improvement of teaching performance in most of the class evaluation elements as the number of science classes increases. They presented the lowest improvement in the 'to design meaningful learning program,' which was one of the sixteen elements. However, there are substantial individual differences in the pre-service teachers' teaching competence on each evaluation element. Although they thought that 'understanding of scientific concepts' is the most important part of a science class in the beginning of student-teaching training, they showed changes in recognition that 'interaction and respect' and 'managing student behaviors' are also important in the end. They have recognized that writing a reflective journal, based on the video clips recorded in class and teaching evaluation, helps improve their teaching competency. In addition, improvement in teaching competency has influence upon career-orientation towards the school teacher in the future.

• Journal for History of Mathematics
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• v.27 no.5
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• pp.365-384
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• 2014

The purpose of this study is to assess the changes that occur to pre-service mathematics teachers by using survey on the self-reflection during their education practices. For four weeks of the education practice period, the changes to pre-service teachers are analyzed from teaching and learning perspectives. The teaching perspective is sub-categorized into lesson contents, teaching methods, and evaluation on teaching, and the learning perspective is sub-categorized into monitoring on learning, support for learning and evaluation on learning. The analysis shows that significant changes occur in teaching contents from the teaching perspective and in all the sub-categories from the learning perspective. Based on the analysis, preservice teachers are suggested to utilize self-reflection programs during their education practices to promote their professionalism in teaching.

• Journal of Urban Science
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• v.11 no.1
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• pp.1-8
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• 2022

As the magnitude and frequency of earthquakes increase in Korea, interest in earthquake damage reduction technology has increased. Therefore, research on vibration damping devices that directly respond to seismic loads is being actively researched. After an earthquake, damage or destruction of the device occurs due to the yield of materials, and thus it takes considerable cost and time for restoration and replacement. To supplement the problems of the existing earthquake damage reduction technology, a study was conducted on the recentering smart damper that can be used continuously after an earthquake. In this study, the recentering smart damper that can be restored to its original shape after load removal was developed using superelastic shape memory alloy, pre-compressed polyurethane. General steel was commonly applied to verify the seismic performance of the superelastic shape memory alloy, and the performance of the smart damper was verified according to the amount of polyurethane pre-compressed

• Journal of The Korean Association For Science Education
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• v.41 no.4
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• pp.325-338
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• 2021

In this study, we developed a 15-week educational program for TPACK(Technological Pedagogical Content Knowledge) development of 40 pre-service teachers in a university for teacher training. We also developed a TPACK evaluation framework to evaluate the practical competency of TPACK of pre-service teachers. The developed evaluation framework consisted of 5 levels, from 0 to 4, TPK(Technological Pedagogical Knowledge), TCK(Technological Content Knowledge), and TPACK, respectively. As a result of the evlauation, the levels of TPK, TCK, and TPACK development stages of most pre-service teachers were consistent, but some pre-service teachers' TPK and TCK did not match. It was found that the TPACK stages follow the lower level between TPK and TCK. In addition, as a result of an investigation into the hindrance factors of the TPACK development of pre-service teachers with low TPACK stages in the use of technology, they have distrust of students' ability to learn with self-regulation, distrust of students' ability to interact, and recognition of practical limitations in the school field. Based on these findings, we argued that it was necessary to provide an educational program to help pre-service teachers develop balanced TPK and TCK and eliminate the hindrance factors of the TPACK development of pre-service teachers about technology-using classes.

• Journal of the Korea Convergence Society
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• v.12 no.7
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• pp.105-111
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• 2021

The purpose of this study is to determine how the pre-test performed before training affects the results of CPR performance. In the case of the pre-test group(PTG), a pre-evaluation was performed for 1 minute before training, and the group that did not perform the pre-test(NPTG) performed only regular education. In both groups, skill test was performed for 1 minute after training. As a result of comparing the pre and post-test of PTG, there were statistically significant changes in chest compression depth, rate, and compression recoil. There was a statistically significant difference only in the chest compression rate in the chest compression performance results of the two groups after training. There was a statistically significant difference in the results of confidence after training in both groups. It is judged that the pre-test conducted before training has a good influence not only on the results of chest compression, but also on confidence improvement. Therefore, it is judged that it is necessary to develop additional programs such as pre-education test in order to increase the concentration of CPR education for the general population.

• Journal of the Korean Society of Earth Science Education
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• v.13 no.1
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• pp.90-99
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• 2020

The purpose of this study is to investigate the difference in science class ability, science pedagogy achievement and class evaluation factors according to elementary pre-service teacher's gender. Also, the correlation between science pedagogy achievement and science instructional ability was examined. Finally, the evaluation factors applied to the evaluation of science instruction according to male and female gender of elementary pre-service teachers were examined. This study was conducted from september 2019 to december 2019 for 88 elementary pre-service teachers attending P University of Education in Pusan metropolitan city. Among these 88 students, 32 elementary pre-service students were male, 56 were female. The conclusions of this study are as follows. First, as a result of analyzing the science instructional ability according to genders of elementary pre-service teachers, female elementary pre-service teachers showed statistically significant higher scores in science class ability compared to male elementary pre-service teachers. Second, as a result of analyzing the achievement of elementary science pedagogy according to gender of elementary pre-service teachers, female showed statistically significant higher scores for elementary science pedagogy than that of male. Third, as a result of analyzing the correlation between science instructional ability and elementary science pedagogy achievement, there was no statistically significant difference. This result can be applied both side of male and female. Fourth, both male and female pre-service teachers had various instructional evaluation factors, among which the linguistic factors of the instruction were used most frequently as criteria for instructional evaluation.