• The Journal of Korean Association of Computer Education
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• v.8 no.4
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• pp.37-47
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• 2005

Teaching ICT skills in extracurricular activity classes of commercial high school helps to bridge the digital divide of the students at the minimum cost, and gives them a chance of getting ICT-related licenses. The purpose of this study is to identify the determinants of satisfaction and planned behavior toward computer classes, offered as extracurricular activities in commercial high schools. A survey methodology was used to investigate a proposed model of influence, and regression analysis was used to analyze the results. The hypothesized model was largely supported by this analysis, and the overall results indicate that the intention to participate in the class is mostly influenced by the expected social effect, individual impact and playfulness from the class. In addition, it was found that the learning environment influences the level of playfulness and social effect, and that the contents quality has some impact on the level of the ease of study and playfulness. Useful suggestions for promoting computer classes as extracurricular activities in commercial high schools are also provided.

• The Journal of Korean Association of Computer Education
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• v.14 no.1
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• pp.1-12
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• 2011

Educational Programming Language has been reported to expand thinking ability and to give help in creative problem solving ability by numerous researches. Researchers are verifying the educational effects of EPL by applying it to various area, but researches in effective application of EPL is yet incomplete. Thus, for effective application of EPL, this research has verified the project completing ability depending on studying style targeted to college senior students. As results of verification, first, the results showed significant differences in project completing abilities depending on information processing methods, and learners who preferred self-reflecting introspection showed high scores. Second, in learning style the divergers showed the highest scores. This research suggested the necessity of guidance and detailed planning of self-reflecting introspective activity in ideas that would be realized by learners through searching for factors that could enhance the degree of project completion in programming learning using EPL.

• School Mathematics
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• v.13 no.4
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• pp.581-598
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• 2011

Given the growing agreement that algebra should be taught in the early stage of the curriculum, considerable studies have been conducted with regard to early algebra in the elementary school. However, there has been lack of research on how to organize mathematic lessons to develop of algebraic reasoning ability of the elementary school students. This research attempted to gain specific and practical information on effective algebraic teaching and learning in the elementary school. An exploratory qualitative case study was conducted to the fourth graders. This paper focused on the associative law of the multiplication. This paper showed what kinds of activities a teacher may organize following three steps: (a) focus on the properties of numbers and operations in specific situations, (b) discovery of the properties of numbers and operations with many examples, and (c) generalization of the properties of numbers and operations in arbitrary situations. Given the steps, this paper included an analysis on how the students developed their algebraic reasoning. This study provides implications on the important factors that lead to the development of algebraic reasoning ability for elementary students.

• Information Systems Review
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• v.8 no.2
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• pp.51-72
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• 2006

This study investigates the typology of Internet business models according to revenue sources, and empirically tests how the revenue sources of each Internet business model are different each other. This study consists of the following two steps. First, AHP(Analytic Hierarchy Process) is adopted in developing the influential factors(indexes) for the profitability of each Internet business model and the weight score of each factor. The questionnaire for AHP consists of 47 questions on 9-point scales, and was distributed to 10 experts on Internet business model. Expert Choice program has been used for analysis. Second, the questionnaire to survey the current profitability of each Internet business model was developed on 5-point scale. In order to analyze the actual revenue quality and source of Internet business models, we used MANOVA and ANOVA. This study contributes to develop the desirable revenue or profit model of each Internet business model, and also provides a reference in evaluation of the revenue quality of Internet business models.

• Journal of the Korean Institute of Intelligent Systems
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• v.15 no.7
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• pp.817-822
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• 2005

Recently tile study that exploits visual information for tile services of robot in indoor environments is active. Conventional image processing approaches are based on the pre-defined geometric models, so their performances are likely to decrease when they are applied to the uncertain and dynamic environments. For this, diverse researches to manage the uncertainty based on the knowledge for improving image recognition performance have been doing. In this paper we propose a Bayesian network modeling method for predicting the existence of target objects when they are occluded by other ones for improving the object detection performance of the service robots. The proposed method makes object relationship, so that it allows to predict the target object through observed ones. For this, we define the design method for small size Bayesian networks (primitive Bayesian netqork), and allow to integrate them following to the situations. The experiments are performed for verifying the performance of constructed model, and they shows $82.8\%$ of accuracy in 5 places.

• Journal of Convergence for Information Technology
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• v.10 no.4
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• pp.81-88
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• 2020

The purpose of this study is to investigate the effects of the job stress and ego-resilience of kindergarten teachers life satisfaction, and to explore ways to improve life satisfaction. 198 public and private kindergarten teachers and childcare center teachers in Gangwon-do were asked to respond by using job stress, ego-resilience, and life satisfaction questionnaires. Based on the collected data, Pearson's correlation coefficient analysis and hierarchical multiple regression analysis are as follows. First, the higher the job stress of the kindergarten teacher, the lower the life satisfaction, and the higher the ego-resilience, the higher the life satisfaction. In particular, the reward, a sub-variable of job stress, had a significant negative correlation with the kindergarten teacher's ego-resilience and life satisfaction. Second, the predictors of relationship resilience, energy, and reward significantly influenced the life satisfaction of kindergarten teachers, and the relationship resilience was relatively explanatory about life satisfaction. This study suggests that an educational plan to be explored to improve ego-resilience for kindergarten teacher's life satisfaction.

• The Journal of the Korea Contents Association
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• v.12 no.6
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• pp.100-110
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• 2012

This study aims to figure out IT needs internalized in our daily lives through expert FGI, examine the general characteristics of them by verifying and classifying them through a survey, and also analyze the chief fields of industry for future society by the types of IT needs. Through this analysis, the paper suggests the directivity of future IT technology, and it can be utilized as foundational data to develop IT convergence technology. First of all, according to the result of drawing the keywords through the concrete future IT needs by the detailed activities through the FGI, this study found intellectualization, integration, virtualization, automation, customization, and safety, etc. According to the result of classifying the IT needs through the survey based on that and examining the characteristics, this study classified them into emphasis on life automation, emphasis on intellectual authenticity, emphasis on information search and convenience, and emphasis on convergence. And each type showed different general characteristics from one another. And in future society, the area of energy was valued the most, and the importance of industry showed somewhat difference by the types of IT needs.

• Journal of Digital Convergence
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• v.15 no.7
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• pp.27-39
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• 2017

To grasp the current status of smart campus and look for future directions, this study investigated the usage rate and perceived usefulness of digital devices and services by conducting online survey of 580 university students. The main results are as follows. First, smartphones have the highest ownership rate, followed by laptops, desktops, and digital cameras. Purchase intention of virtual reality devices is highest followed by smart watches/bands, and tablets. Second, mobilization in campus life is almost realized, however the usage of desktops is still high in education and administration context. Digital devices have been perceived particularly useful when searching and sharing information. Third, students use digital services such as search engines, messengers, and online libraries in their learning, and they use messengers, music and video services in their lives. Service usage rate and perceived usefulness are not proportional.

• Korean Institute of Interior Design Journal
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• v.25 no.3
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• pp.51-59
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• 2016

The technique for Eye-tracking is to trace the movements of pupils so that the eye's exploration response to be digitized. The procedure of Observation Experiment shows a mutual environmental characteristics between men and measuring devices. In order to improve the reliability and to secure the objectivity of the data acquired from eye-tracking, it is very important to analyze the procedures for the experiment to be prepared and the test data to be saved. Based on this viewpoint, the convergent exploration activities at the observation experiment with the objects of sport images were examined to find out what influences the context effect given by experimental environments have on this experiment. In addition, the starting time of attention affecting the reliability of observation data has been estimated. When the observation time is to be subdivided by the unit of second. The attention disperses for the individual characteristics to be appreciated. However, in case of analysis by the overall average, there was the problem that the section of attention dispersed to make it difficult to analyze the subjects' observation features. The study results made it possible to understand the physiological characteristics which were near unconsciousness, when there was an intensive attention for the first 3 seconds and the observation data were shown to be in ordinary range after 4 seconds. The analysis of observation with the focus of the intensive attention enabled the analysis with the first 3 seconds excepted so that it might approach the ordinary range of observation data. The distribution of attention for the first 3 seconds showed the intensive attention, which was on the center. The emergence of intensive attention and the overlapping of the centers can be considered as a context effect due to the correction for the preparing process of experiment. Accordingly, it is thought to be helpful to the security of objectivity and the construction of reliability of eye-tracking data to analyze the observation features shown after the deletion of the data for the first 3 seconds.

• Journal of the Health Care and Life Science
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• v.9 no.1
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• pp.11-25
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• 2021

This study is to analyze the relationship between self-esteem and happiness of parents and children in the 4th-grade elementary school and the 1st-grade of middle school using Korean Children and Youth Panel Survey(KCYPS) 2018 data by the National Youth Policy Institute. The context of analysis is to determine how parents' self-esteem and happiness affect parenting attitudes, and furthermore, how they affect their children's academic activities, self-esteem and happiness. This study is able to explore the level at which self-esteem and happiness, the mental health measure of children and adolescents, were linked to parental self-esteem and happiness. And it suggests that the importance of the role of a parent as a family background has been confirmed in promoting the healthy development of children and adolescents.