• Journal of Korean Home Economics Education Association
• /
• v.27 no.4
• /
• pp.1-18
• /
• 2015

The purpose of this study was to conduct a course entitled 'Teaching practice' applying Problem Based Learning(hereafter PBL) for perspective Home Economics teachers to explore the applicability of PBL to the course. A course entitled 'Teaching practice' was carried out for 17 undergraduate students from the 2nd of March till 11th of June in 2014. Pre- and post-tests to measure teacher disposition were performed to investigate the effectiveness of the course applying PBL. Three questions for PBL were developed, were determined after obtaining verification of the questions from 5 experts, and were used for the course entitled 'Teaching practice'; Developing teaching-learning plan, establishing plan for homeroom class management, and designing assessment of Technology & Home Economics. The processes of PBL include defining the problem, planning problem solutions, reassessing the problem, identifying possible solutions, and performance presentation. Procedures for solving one problem of PBL took 4 weeks and teacher disposition assessment for effectiveness of PBL was carried out for pre- and post tests. The reflection journal showed that even though it was their first experience of PBL, instructor's feedback, group activities, and individual activities were helpful for solving the problems of PBL. The result of dependent t-test for paired samples revealed significant differences between the pre- and post tests, which means that there was effectiveness of the course applying to PBL on teacher disposition of prospective Home Economics teachers.

• Information Systems Review
• /
• v.13 no.3
• /
• pp.141-163
• /
• 2011

The advancement of information technologies including the Internet has affected the way of social information processing as well as brought about the paradigm shift to the information society. Accordingly, it is very important to study the process of social information processing over the digital media through which social information is generated, distributed, and led to social consensus. In this study, we analyze the mechanism of social information processing, identify a process model of social consensus and institutionalization of the results, and finally propose a set of information processing characteristics on the internet media. We deploy the ethnographic approach to analyze the meaning of group behavior in the context of society to analyze two major events which happened in Korean society. The formation process of social consensus is found to consist of 5 steps: suggestion of social issues, selective reflection on public opinion, acceptance of the issues and diffusion, social consensus, and institutionalization and feedback. The key characteristics of information processing in the Internet is grouped into proactive response to an event, the changes in the role of opinion leader, the flexibility of proposal and analysis, greater scalability, relevance to consensus making, institutionalization and interaction. This study contributes to the literature by proposing a process model of social information processing which can be used as the basis for analyzing the social consensus making process from the social network perspective. In addition, this study suggests a new perspective where the utility of the Internet media can be understood from the social information processing so that other disciplines including politics, communications, and management can improve the decision making performance in utilizing the Internet media.

• Journal of the Korean Society of Earth Science Education
• /
• v.13 no.2
• /
• pp.147-161
• /
• 2020

In order to help elementary students understand the astronomical unit in depth, this study applied backward design 2.0 to check the effect on students' science academic achievement, performance evaluation, and science class satisfaction. As a result of the study, there was no statistically significant difference in the science achievement test, but the average score of the experimental group has improved. As a result of the performance evaluation test, there was a statistically significant difference because the feedback was well provided through the process-focused assessment and it helped in-depth understanding. As a result of the science class satisfaction test, there was a statistically significant difference in the areas of science curriculum and peer relation except for the science teacher area. This is because a differentiated science curriculum was designed through analysis of achievement standards, and various teaching methods of student-centered were implemented to reach achievement standards. We hope this study will focus on the impact of backward design 2.0 on learners in elementary science classes and help find ways to effectively apply backward design 2.0 in the field.

• The Journal of the Korea Contents Association
• /
• v.17 no.6
• /
• pp.194-202
• /
• 2017

This study is a methodological study analyzing the results of applying capstone design to nursing education. Among the nursing college students who completed the fundamental nursing subject, the students who agreed to participate in the research were composed of the project team and proceeded as team activities. It was conducted through knowledge - team composition - topic selection / analysis - design / development - simulation - evaluation / feedback process starting from knowledge learned through fundamental nursing class. The research period was from January 1, 2015 to October 30, 2015 for 6 months. BBS (Bed Sore Socks) was developed for the prevention of pressure ulcers, and BBS was applied for seven days to randomly selected patients in the long term care facility. The incidence and pressure ulcer risk scores were assessed. The results of the pilot study showed that the intervention group had an effect on the incidence of pressure ulcer ($x^2=.40$, p = .500) and the pressure ulcer risk score (z = -.45, p = .690), but it was not statistically significant. Capstone design was trailed in the field of nursing education and produced the bed sore socks. In the nursing education, not many capstone design trails appeared yet, this study might be the first trail in the field of nursing, and it could be challenging for expanding of nursing education.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.20 no.11
• /
• pp.1-6
• /
• 2019

Multicast is an efficient method for real-time transmission in many multimedia applications. It is important to recover lost packets and to manage multicast groups according to the network status in order to improve the reliability of multicast transmissions. In this paper, we propose a method that can efficiently recover lost packets in a large multicast group. In the proposed method, we create a recovery cluster (RC) using a multicast domain (MD) for recovery of lost packets. In the conventional methods, clusters send a request message for lost packets to the senders in order to recover the packets lost from many multicast applications. This increases packet delay time and overhead because of the feedback messages and retransmitted packets. In the proposed method, we improve these problems using the RC, which consists of many MDs (which have overlay multicast senders), and many cluster heads (CHs). We divide the message into blocks, and divide each block into many segments for packet recovery using the CHs. When packet loss occurs, all CHs share the segment information and recover the lost segments at the same time. Simulation results show that the proposed method could improve the packet recovery ratio by about 50% compared to the conventional methods.

• Korean Journal of Cognitive Science
• /
• v.21 no.2
• /
• pp.283-307
• /
• 2010

In this study, a new open-ended format math testing system for elementary school students has been proposed. This system is an application of the recently proposed Constructive Multiple-choice Testing (CMT) system on math testing. The CMT system is a testing system in which the examinee has to respond to an item twice, first in an open ended format, and then in the multiple choice format. The advantages of this system is that process information can easily be obtained and that the examinee can receive feedback immediately after the test, based on his/her multiple choice responses. This open-ended format math testing system includes the manager mode, which allows the generation of the test items and student account management, and the testing mode, which allows the students to input their solution process using the menu bar and the keyboard. When two groups, one tested using the CMT system and the other tested using the paper and pencil test, were compared, there was no significant difference in average scores between the two groups although the testing time was longer for the group tested using the CMT system. This result suggests that the open-ended format math testing system proposed in this study can be used effectively in the actual classroom setting.

• Journal of The Korean Association For Science Education
• /
• v.39 no.5
• /
• pp.637-654
• /
• 2019

The purpose of this study is to investigate the development of scientific conceptual understanding through a process-centered assessment that visualizes the process of scientific argumentation. In this study, 353 high school students and five teachers participated in the scientific argumentation. As a result of analyzing students' utterances on the elements of argumentation, scientific concepts in intragroup were embodied through query and clarification of meaning, and organized through agreement and rebuttal. In intergroup argumentation, scientific concepts were elaborated through query, clarification of meaning, and change of claim. Teachers were able to understand the process of argumentation through small-group activity sheets where the process was visualized, thereby providing feedback and improving the class. Based on the results, the scientific argumentation of visualizing the process was found not only to allow students to perform self-assessment and peer-assessment but also to help teachers understand the argumentation process. The findings of this study guide process-centered assessment in the science curriculum and are expected to contribute to the promotion of scientific argumentation in classrooms.

• Korean Journal of Adult Nursing
• /
• v.12 no.2
• /
• pp.267-277
• /
• 2000

The purpose of this study was to help the women with stress urinary incontinence lead more comfortable life, by letting them to do pelvic muscle exercise and to learn by direct experience the effect that urinary incontinence is controlled. The research design was a one-group pretest-posttest design. The subjects were 16 middle-aged women(over 38) with stress urinary incontinence. The study was conducted from August 1, to October 11, 1999. Women trained themselves for muscular strength and endurance, every the other day for each exercise for six weeks at home(that means each exercise for more than three days a week) in the pelvic muscle exercise program which was developed by Dougherty et al., and filled out exercise participation card every week. They visited laboratory once a week to get visual feedback, by means of Perineometer, of how the pelvic muscle exercise was going on. Stress Urinary Incontinence Scale that Lee, Young-Sook revised and supplemented Hendrickson's original scale was used for measuring the frequency and situation scores of urinary incontinence, "30 minute pad test" was carried out for measuring the amount of urinary incontinence, and Perineometer was used for measuring maximum vaginal contraction pressure. Percentage, mean, standard deviation and Wilcoxon signed ranks test were used for data analysis by means of SPSS/PC+ WIN 9.0 program. The results were summarized as follows : The hypothesis 1 that after carrying out pelvic muscle exercise program on women with stress urinary incontinence, the weekly degree of urinary incontinence would reduce compared to before the exercise was supported. The hypothesis 1-1 that after carrying out pelvic muscle exercise program on women with stress urinary incontinence, the weekly frequency of urinary incontinence would reduce compared to before the exercise was supported (p=.003). The hypothesis 1-2 that after carrying out pelvic muscle exercise program on women with stress urinary incontinence, the situation scores of urinary incontinence would reduce compared to before the exercise was supported(p=.044). The hypothesis 2 that after carrying out pelvic muscle exercise program on women with stress urinary incontinence, the amount of urinary incontinence would reduce compared to before the exercise was supported(p=.001). The hypothesis 3 that after carrying out pelvic muscle exercise program on women with stress urinary incontinence, the maximum vaginal contraction pressure would increase compared to before the exercise was supported (p=.012). These results suggest that pelvic muscle exercise program has an effect on women with stress urinary incontinence in the degree and amount of urinary incontinence and maximum vaginal contraction pressure. So it is judged that training women with stress urinary incontinence for pelvic muscle exercise is an effective nursing intervention strategy in order to care urinary incontinence.

• The Journal of the Korea Contents Association
• /
• v.16 no.4
• /
• pp.204-210
• /
• 2016

The reason to research the musical is it has a lot of useful things for the various studies department not only Korea Musical Theatre own although it has been a successful musical theater on the Off-Broadway by Reboot culture era. Even though does not release on Korea, the popular of the show and powerful results of environments have delivered through the international magazines and Youtube channels to Korea. To study of Musical will be lead us to the world which adopted to the social problems as the youth school violence, family communication hurdle, and religion missing by script not only the musical drama but the interpretation for Teen-agers social problem. There are many kinds of Neo educations are proved by smart learning as STEAM. The students who have been studied with the smartphone, I-pad, personal computer, or laptop as smart tools for class are familliar as feedback processing speedly. It would make them learn the skill for their knowledge of a digital age, but it should not let them how to understand other people's emotion as real although STEAM has emtion part. Besides they have communicated on the social network not the ordinary man but the special ego by themselves, as mention or retweet as like their amusements and make the gossip group. This study would show the perspective for understanding Teen-agers Social Problem and who is the victims today's juvenile problems though the musical based on Jim Taulli's directing.

• Korean Journal of Food Science and Technology
• /
• v.43 no.4
• /
• pp.458-463
• /
• 2011

Recent studies have revealed that collagen peptide (CP) plays a protective role in skin by improving the activity of antioxidants and acts as an inducer of skin regeneration by positive feedback. In this study, we focused on the beneficial effect of reinforcing the CP skin barrier. To evaluate the skin barrier, hairless mice were exposed to UVB irradiation and acetone-treatment, with or without oral administration of CP. The effects on skin appearance, trans-epidermal water loss, epidermal thickness, and cytokine content were measured using bioengineering and histochemical methods. In the CP treated group, the skin had better appearance and less damage than that of the control. Furthermore, in HaCaT cells, the amount of serinepalmytoyl transferase (SPT) mRNA increased by about 1.6-fold after treatment (CP, 100 mg/L), reflecting that CP can induce SPT expression and reinforce the recovery of skin barrier function. These results suggest that CP is not only an anti-wrinkling agent but also a potent candidate as an epidermal moisturizer.