• Journal of The Korean Association For Science Education
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• v.17 no.1
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• pp.75-83
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• 1997

The purpose of this study was to determine the strategies that middle school students used in solving problems concerning density and solubility. These were compared in the aspects of problem contexts for 42 students of varying logical reasoning ability, spatial ability, and learning approach. A coding scheme used consists of five categories: reading & organization, production, errors, evaluation, and strategy. Students' protocols were analyzed after intercoder agreement had been established to be .95. The results were as follows: 1. Students had more difficulties in reading and organizing the problems in everyday contexts than in scientific contexts. Students at the concrete-operational stage and / or surface approach were more likely to have difficulties in reading and organizing the problems than those at the formal-operational stage and / or deep approach. 2. Students tended to split up the solubility problems into sub-problems and to solve the density problem in everyday contexts in random manner. These were significantly correlated with the test scores concerning logical reasoning ability, spatial ability, and learning approach at the .1 level of significance. 3. Major errors in solving the density problems were to disregard the given information or generated and to use inappropriate information. Many errors in solving the solubility problems were found to be executive errors. The strategy to use the information given appropriately was positively related to students' logical reasoning ability, spatial ability, and learning approach. 4. More evaluation strategies were found in everyday contexts. Their strategies to grasp the meaning of answers and to check the math were significantly related to students' logical reasoning ability. 5. Students used the random trial-and-error strategy more than the systematic strategy and the systematic trial-and-error strategy, especially in everyday contexts. The strategies used by the students were significantly related to students' logical reasoning ability, spatial ability, and learning approach.

• Journal of Korean society of Dental Hygiene
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• v.20 no.2
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• pp.119-128
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• 2020

Objectives: This study aimed to analyze the textbook content, specifically that of the oral health units, of Korean elementary health textbooks in order to discuss oral health education in elementary schools through textbooks. Methods: The study analyzed the "oral health" units of six health textbooks for students in the fifth and sixth grades of elementary school in Korea. It identified the number of pictures, practice contents, and summaries in the textbooks, calculating the proportion of oral health units relative to the total number of pages in the textbook and comparing the learning goals provided by the WHO with the education contents. In addition, the study also analyzed several keywords from the textbooks in terms of whether they relate to oral health. Results: The comprehensive analysis on the oral health units within the three health textbooks analyzed revealed that all three were similar, except that the textbook from publisher A did not include an introduction. The three textbooks also had differences in terms of the organization of the contents. In terms of the learning goals of the oral health units, there were differences between the WHO standards and the learning goals from the textbooks, with the WHO standards only partially reflected. The analysis also showed that there were more keywords on oral diseases than those related to oral health management and prevention. Conclusions: Improvements should be made regarding the learning goals and education topics of health education in order to ensure that children receive a more systematic oral health education in their earlier years, which will help to develop and correct oral health management habits among elementary school students.

• Journal of the Korean housing association
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• v.24 no.1
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• pp.1-10
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• 2013

Number of children cared by child care centers has getting up almost half of the from zero to five year age group in korea. Home care children' activities are reported more active and natural than those of center care children. So this study seek the design guidelines for the residential core model of child care centers as second home in korea. The residential core model by Anita Lui Olds was selected and ten domestic center cases were surveyed for guidelines. Firstly, daily-residential core model is learning by daily life at home, and is equiped with cooking kitchenet and group activity area in group room. Secondly, play-residental core model is learning by playing by self, and is equiped with acting, eating and reading common area clustering two or three group room. Thirdly, eco-residental core model is learning by eco-friendly activities, and is equiped with companying, cooperating and sharing area. Fourthly, project-residental core model is learning by project by self, and is equiped with drawing, experimenting and presenting common area. Fifthly, the space of residential core model is organized with three or four group room and clustering living or common area. The larger the center is, the more the cluster is vertically. Facility area and outdoor playground per child is about 7 and $3m^2$.

• Journal of Digital Convergence
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• v.8 no.4
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• pp.1-17
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• 2010

Many organizations have had deep interests in studies concerning leadership and also in academic area, not only management but also psychology. Until now, the leadership has been accentuated to managers or team leaders especially. Recently, however, the concept of self-leadership that lead one's own activities toward right direction through self-control or self-management is being focused on practices and academia. This study is to investigate the influence between self-leadership strategies and learning performance at IT classes mediated by attitude of attendance focused on the social science students in an university. Research results can give us right direction of task-taking attitudes in firms or learning attitudes in teaching organization and implications to human resource manager who are in charge of improving learning performance or productivity.

• Journal of Korean Academic Society of Home Health Care Nursing
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• v.23 no.2
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• pp.147-154
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• 2016

Purpose: This study aimed to develop and apply simulation-based education, and to verify the effects of this type of education on nursing students' presence in education, systems thinking, and proactivity in problem solving. Method: Subjects were 69 senior college students recruited through convenient sampling. This study used a one-group pre-posttest quasi-experimental design. A structured survey was administered a week before and after provision of the simulation-based education once a week for 4 weeks. Data were analyzed using descriptive statistics and t-tests. Results: Teaching presence increased after the educational intervention; instructional design and organization, and aspect of direct facilitation subscales improved. Learning presence increased after the educational intervention; although cognitive presence did not change, emotional presence increased. With regard to emotional presence, perception and expression of one's emotional status increased, although emotional management did not change. Moreover, systems thinking increased. Among the subscales, team learning showed an increase after the educational intervention. However, there was no significant difference in proactivity in problem solving, although it showed an increase after the educational intervention. Conclusion: Based on the aforementioned study results, there is need to establish educational environments for qualitative teaching and learning presence, and devise strategies to increase learning effects with various teaching methods and type of content.

• Journal of Korean Elementary Science Education
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• v.24 no.2
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• pp.138-144
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• 2005

This study was intended to survey and analyze the illustrations of the elementary science textbooks in the』 7th revised education curriculum in Korea, and to compare the results with the illustration organization of the elementary science textbooks of Japan. The analysis criterion was composed of two categories, the kind of illustration and the role of illustration. The kind of illustration was divided into five subcategories such as photograph, picture, illustration, cartoon and diagram. The role of illustration was divided into four subcategories such as motive induction, guidance for learning, the supply of material, the presentation of results. According to the analyzing criterion, the frequencies of relevant subcategories of illustrations in science textbooks were checked and arranged and the resultant data were analyzed by grades. The findings of this study were as follows: 1. Korean science textbooks have about 3.29 illustrations per page whereas Japanese ones have 4.1l. Compared with Korean science textbooks, Japanese ones have more illustrations. 2. From the analysis of the kinds of the illustrations by grade basis, it was found that the order of percentage of illustrations is photograph, cartoon and picture in both countrys' science textbooks. Korean ones are highly dependent on photograph. As a contrast Japanese ones have more ratio of cartoon and picture than Korean science textbooks. 3. The analysis of the roles of the illustrations by grade basis showed that the role of guidance for learning is major in both countrys' science textbooks. The role of guidance for learning is prominent in Japanese ones, but in Korean ones, the role of guidance for learning is a little higher than that of the supply of material.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.8
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• pp.2078-2087
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• 2009

The Air and Correspondence High School (ACHS) has played a key role as an organization of lifelong learning since 1974. However, extra-curriculum in ACHS has not been operated successfully due to lacks of educational supports and on-line contents. So we surveyed demands of the ACHS teachers and students for successful operation of extra-curriculum, found four subjects that students preferred in the developing activity area which is one of extra-curricular activities, and experimentally developed four on-line contents for extra-curriculum. And we also applied the developed on-line contents to the students of Chongju H.S. After the application, another survey and interview were carried out to measure learner's satisfaction, find out problems of learning with on-line contents and suggest the ways of improving extra-curriculum learning system.

• Genomics & Informatics
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• v.16 no.4
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• pp.31.1-31.7
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• 2018

The prevalence of metabolic syndrome (MS) in the nonobese population is not low. However, the identification and risk mitigation of MS are not easy in this population. We aimed to develop an MS prediction model using genetic and clinical factors of nonobese Koreans through machine learning methods. A prediction model for MS was designed for a nonobese population using clinical and genetic polymorphism information with five machine learning algorithms, including naïve Bayes classification (NB). The analysis was performed in two stages (training and test sets). Model A was designed with only clinical information (age, sex, body mass index, smoking status, alcohol consumption status, and exercise status), and for model B, genetic information (for 10 polymorphisms) was added to model A. Of the 7,502 nonobese participants, 647 (8.6%) had MS. In the test set analysis, for the maximum sensitivity criterion, NB showed the highest sensitivity: 0.38 for model A and 0.42 for model B. The specificity of NB was 0.79 for model A and 0.80 for model B. In a comparison of the performances of models A and B by NB, model B (area under the receiver operating characteristic curve [AUC] = 0.69, clinical and genetic information input) showed better performance than model A (AUC = 0.65, clinical information only input). We designed a prediction model for MS in a nonobese population using clinical and genetic information. With this model, we might convince nonobese MS individuals to undergo health checks and adopt behaviors associated with a preventive lifestyle.

• Journal of Korea Society of Industrial Information Systems
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• v.27 no.3
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• pp.59-88
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• 2022

As the open innovation paradigm spreads, the ability to search for new external knowledge and combine it with the organization's existing knowledge has been cosidered to play an important role in improving business performance of a company. This study empirically analyzed the influence of such organizational variables as empowering leadership, organizational learning culture, and interdepartmental cooperation on business performance of innovative technology SMEs focusing on the mediating effects of absorption capacity. For this purpose, a survey was conducted on 15,227 INNOBIZ SMEs, and 326 usable questionnaires were collected and analyzed using the structural equation model. Statistical analyses showed that the direct influence of empowering leadership, organizational learning culture, and interdepartmental cooperation on business performance was not found, but indirect effects of three organizational variables on business performance proved significant using absorption capacity as a mediating variable. This result also indicates that empowering leadership, organizational learning culture, and interdepartmental cooperation are important antecedent variables of absorption capacity.

• The Journal of the Korea Contents Association
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• v.22 no.2
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• pp.281-293
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• 2022

The necessity for introducing artificial intelligence(AI) into the public sector to form an intelligent government has been emerging. This study set 'Organizational Agility', 'Exploitation & Exploration Learning', and 'E-government Capability' as independent variables for the introduction of AI in central government. Dependent variables were set on whether AI was adopted in the central government organization 'Bu(mainly conducts policy planning)', and 'Cheong(mainly performs policy execution)'. Logistic regression analysis was performed on each of the two models. As a result, it was derived that ministry Bu adopted AI as organizational agility increased, and ministry Chung adopted AI as e-government capability increased. Particularly, it was identified that the effect of exploitation learning for Cheong organizations offset the influence of AI introduction according to e-government capabilities, while exploratory organizational learning facilitated the AI introduction. This study is meaningful for suggesting a strategy for adopting AI in government.