• Journal of Elementary Mathematics Education in Korea
• /
• v.10 no.2
• /
• pp.151-169
• /
• 2006

This study is to adjust the Theory in the Mathematics Education, apply it to learning mathematics and to analyse its effectiveness. The results of the study are summarized as follows. First, because learning mathematics is hierarchical, teachers must make and use a task analysis table classified by units. Second, development age and the retention of mathematics concepts are intimately associated with cognitive development theory. Third, learning mathematics through cognitive processes enhances a student's scholastic achievement. Fourth, students interests and self-confidence can be enhanced through the presentation of both examples and non-examples. We cannot understand the higher-order concepts of mathematics by only its definitions. The only way of understanding such concepts is to have experience through suitable examples.

• Proceedings of the Zoological Society Korea Conference
• /
• 1995.10b
• /
• pp.363.1-363
• /
• 1995

• Proceedings of the Zoological Society Korea Conference
• /
• 1995.10b
• /
• pp.362.2-362
• /
• 1995

• Archives of design research
• /
• v.15 no.3
• /
• pp.167-180
• /
• 2002

This study investigates effective ways to help users form a correct mental model of the hierarchical information space (HIS) in small display. The focus is the effect of color cue on understanding the structure and navigating the information space. The concept of color space (CS) corresponds well to the HIS - one color has a unique position in the CS as a piece of information does in HIS. In this study, we empirically examined two types of color cue, namely, categorical and depth cue. Hue was used as a categorical cue and tone was used as a depth cue. In our experiment, we evaluate the effectiveness of the color cues in the mobile internet system. Subjects were asked to perform four searching tasks and four comparison tasks. The results of experiment reveal that the categorical cues significantly improve the user's mental model whereas decrease navigation performances. The depth cues cannot aid in understanding the HIS as well as improve navigation performances. This study concludes with limitations of the study and descriptions of future studies.

• The Journal of the Korea Contents Association
• /
• v.21 no.4
• /
• pp.498-508
• /
• 2021

This study was to identify the concept of oppression in nursing organization thereby providing basic data on nursing education to improve oppression in nursing organization. Using Walker and Avant's criteria to identify attributes, antecedents, and consequences of oppression in nursing organization, 17 research articles published from 2006 to 2020 were reviewed. The defining attributes of oppression in nursing identified in this study were low self-esteem, lack of authority, and horizontal violence. The antecedents to oppression in nursing organization were oppressors, hierarchical organizational structure, and marginalization. The consequences of oppression in nursing organization included job satisfaction, organizational silence, patient safety and quality of nursing. Considering the findings, improvement of the hierarchical working environment in hospitals and self-awareness as professional nurses are important for nurses to overcome oppression in nursing organization. Therefore, effective educational programs should be developed to ameliorate working environment and self-awareness of nurses.

• Korean Journal of Childcare and Education
• /
• v.10 no.4
• /
• pp.29-49
• /
• 2014

This study focused on how early childhood in-service teachers and pre-service teachers understood the concept of Forest Education. By applying the analysis of conceptual maps, introduced by Novak and Gowin's (1983, 1984), this study examined the number of upper category and subcategories, characteristics, hierarchy, and density of teachers' knowledge of Forest Education. 39 early childhood teachers and 60 pre-service teachers participated in this study. First, in-service teachers put 'nature(forest)' and 'living creatures' in the highest level of knowledge of Forest Education. On the other hands, pre-service teachers put 'the effect of Forest Education' and 'program' as well as 'nature(forest)' in the highest level of knowledge. In-service teachers seemed to construct their knowledge by understanding Forest Education as curriculum or activities such as math, language, music or multicultural education. Therefore they had a tendency to talk more about specific concepts including four seasons, insects, air, or climate change. However, pre-service teachers described 'the interconnectedness between human and nature', 'deep relationship with nature' and 'provision of nature.' This tendency might relate to their prior educational experiences of Eco-centered Early Childhood Education. With regards to the density and hierarchy of knowledge on Forest Education, both groups revealed the relatively low degree of density with average of around 2.00. This result can be interpreted that both groups of teachers might not have strong hierarchical and organizational knowledge of Forest Education. For the teacher education, philosophical background and practical knowledge of Forest Education should be included more.

• Korean Journal of Childcare and Education
• /
• v.11 no.4
• /
• pp.19-37
• /
• 2015

The purpose of this study was to examine early childhood teachers' knowledge and the level of their knowledge on the contents of early childhood nutrition education. The subjects were 105 early childhood teachers and they were asked to draw a concept map. The number, characteristics and density of superordinate concepts on the contents of early childhood nutrition education were analyzed. The results were as follows: Firstly, the most frequent superordinate concept was dietary habits. Secondly, food culture was the highest average of the number of subordinate concepts. In a hierarchy, food culture was also the highest score. In specificity scores, food was the highest score. And the density ranged from 0.33 to 3.60. In conclusion, the teachers' knowledge structure on early childhood nutrition education could be regarded as parallel, not well-integrated, rather than hierarchical or well-organized. A variety of nutrition education and customized teacher training should be provided for early childhood teachers to offer early childhood nutrition education.

• Korean Journal of Social Welfare Studies
• /
• v.49 no.1
• /
• pp.163-190
• /
• 2018

The citizen-initiative has been frequently mentioned in community building project which is being promoted by Seoul City. The citizen-initiative has become an important concept in the direction of community welfare efforts. However, this concept has not been defined clearly in social welfare. In this context, the purpose of this study is to find how the practitioners of the social welfare practice field recognize the concept of citizen-initiative. In this study, concept mapping method was used to generate 59 statements about the citizeninitiative in 10 social workers in Seoul. Multidimensional scaling analysis and hierarchical cluster analysis are used to do mapping and grouping the 59 statements. The results are as follows. A total of 6 categories were derived. The six categories are named "Inducement of Participation", "Practice", "Procedure", "Awareness and Interest extension", "Expression of Opinion", "Attitude and Emotion". "Practice" category was revealed as a core category in the concept of citizen-initiative. This study is meaningful as a first step to discuss "what is the citizen-initiative?" and to make consensus in social welfare academic area and practice field.

• Journal of The Korean Association For Science Education
• /
• v.34 no.2
• /
• pp.55-62
• /
• 2014

This study is to reclassify the classifications or definitions of scientific literacy in scientific literacy researches since 1960s and grasp the classification trends of scientific literacy definitions. Sixteen articles have been selected among the articles that have been introduced in the two articles. Classification criteria are as follows: 1) "be learned," "competence," or "be able to function in society" as meanings of "literate," 2) "terms" or "description" as the ways of representing scientific literacy, 3) "singular structure," "hierarchical structure," or "parallel structure" as the inner structure of scientific literacy definitions. The results of this study are as follows: First, hierarchical structures in scientific literacy have almost always accompanied "terms" representing scientific literacy and also accepted the hierarchy between "be learned" and "competence," but not the definition of scientific literacy as functioning in society. All parallel structures in scientific literacy have accompanied the definition as functioning in society. And singular structure almost always appears in researches based on the views of scientific literacy in relatively recent times. Second, researches who have used "terms" as ways of representing scientific literacy have increased. Based on the results in this study, the meanings of scientific literacy have been emphasized in view of the ability of playing a role in a social context as well as learning and competence these days. To meet this movement in scientific literacy actively, science education community should get out of traditional teaching and learning scientific concepts and give emphasis on application in various context and social role of science learners.

• Science of Emotion and Sensibility
• /
• v.9 no.spc3
• /
• pp.209-224
• /
• 2006

Hierarchy which is often named as the tree-structure is used to reduce complexity and show primitive structures of complicated information. This paper aims at explaining information-visualization methods using hierarchies in multimedia domains and prospecting the possible applications by examining how they affect the user's tasks involved in information-seeking activities. As a result, four types of information visualization methods named Treemap, Hyperbolic, Cone Tree and DOI Tree employed in multimedia domain, are presented and pros and cons of each method are explained in this paper. Another important part is defining the core tasks and other related-tasks in information-seeking activities, such as, overview, zoom, filter, details-on-demand, relate, history, and extract. Followings are major findings. Treemap uses 'overview' as the core task, which makes user to gain a overall meaning of the whole information cluster. Hyperbolic and DOI Tree apply 'Boom' task through the function of focus+context or by the function of meaningful scaling to magnify or downsize each node. Cone Tree, also, makes the information organizer to classify the patterns of information acquired in the process of users' information-seeking activities by using 'extract' task. Through this study, it is finally found out that the information-visualization methods using hierarchies in multimedia domains should incorporate the wide variety of functional needs related to users' information-seeking behaviors beyond the visual representation of information.