• Proceedings of the Korean Operations and Management Science Society Conference
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• 1996.04a
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• pp.514-517
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• 1996

In solving multi-level knapsack problems, conventional heuristic approaches often assume a short-sighted plan within a static decision enviornment to find a near optimal solution. These conventional approaches are inflexible, and lack the ability to adapt to different problem structures. This research approaches the problem from a totally different viewpoint, and a new method is designed and implemented. This method performs intelligent actions based on memories of historic data and learning. These actions are developed not only by observing the attributes of the optimal solution, the solution space, and its corresponding path to the optimal solution, but also by applying human intelligence, experience, and intuition with respect to the search strategies. The method intensifies, or diversifies the search process appropriately in time and space. In order to create a good neighborhood structure, this method uses two powerful choice rules that emphasize the impact of candidate variables on the current solution with respect to their profit contribution. A side effect of so-called "pseudo moves", similar to "aspirations", supports these choice rules during the evaluation process. For the purpose of visiting as many relevant points as possible, strategic oscillation between feasible and infeasible solutions around the boundary is applied for intensification. To avoid redundant moves, short-term (tabu-lists), intermediate-term (cycle detection), and long-term (recording frequency and significant solutions for diversification) memories are used. Test results show that among the 45 generated problems (these problems pose significant or insurmountable challenges to exact methods) the approach produces the optimal solutions in 39 cases.lutions in 39 cases.

• Journal of Educational Research in Mathematics
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• v.23 no.4
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• pp.553-565
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• 2013

The purpose of this study was to examine how the Lakatos method works in the elementary teacher education program. Elementary preservice teachers were given a task in which they examined the Pick's theorem. The finding revealed that Lakatos method was usable in the elementary teacher education. They produced initial conjecture and found counterexamples, and finally made improved conjectures. These experience encourage them to change their belief of teaching and learning mathematics and to find alternative ways of teaching mathematics.

• Journal of Digital Contents Society
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• v.11 no.1
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• pp.1-8
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• 2010

Computers can intensify the students' motivation and understanding about the solution to the problems in class, therefore, computers can be the most appropriate educational tools for the study of problem solving and have been also recognized as a representable study method in the information age, which can pass on various educational experience to the right place at the right time. Mutimedia producing tool helps us develop and maintain the educational courseware by way of using general technology of multimedia system. In this thesis, it presents the efficient development process of educational software by using mutimedia producing tool, its educational advantages and problems, and its future progress direction as well.

• Journal of Family Resource Management and Policy Review
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• v.17 no.2
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• pp.121-145
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• 2013

The purpose of this study is to understand married female immigrants' life adjustment process in Korea by explaining the resources to which they have access and how they use them. The data were collected through in-depth interviews with ten female participants who have more than one child, have participated in programs of the multicultural family support center, have work experience, can communicate with Koreans, and live in Daegu. The major findings are as follows. The participants' personal resources differed. English language skills were very useful resources for making money and for earning the respect of family members and others. However, the participants without English language skills had sincerely and actively tried to learn the Korean language and gain bilingual competence. The participants obtained diverse family resources from their husbands and parents-in-law after adapting themselves to perform their gender role. Further, the participants used the social resources offered by public support systems as a starting point for learning the Korean language in their early adaptation process, and formed personal networks with staff members at the multicultural family support center. The results show that the participants used many kinds of resources for acculturation by interacting positively with their environment. Moreover, the resources from diverse levels of their environments affected their acculturation process.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.31 no.5
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• pp.1011-1020
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• 2021

Throughout the years, cybersecurity incidents related to the shipbuilding and maritime industries are occurring more frequently as the IT industry develops. Accordingly, expertise in the information protection industry is necessary, and effective education contents on information protection are needed for this purpose. Recently, there have been more and more cases of increasing user experience by applying Metaverse technology to the educational field. Therefore, this study analyzes the existing information protection education and training and the information protection education contents in the maritime industries and proposes four directions for content development (i.e., online education and seminars, cybersecurity threat learning of virtual ships, accident reproduction, and maritime cybersecurity exhibition operation).

• Journal of Korean Home Economics Education Association
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• v.25 no.2
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• pp.65-78
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• 2013

The following experiment was designed to test the students' involvement in the interactive activities and objectives of the relevant chapters in the newly revised curriculum of 2007. The experiment was carried out with the purpose of understanding the level of participation of the Grade 9 students who have successfully completed the Grade 8 "Choice of Food and Diet" and "Table Manners and Dining Etiquette" courses with classified materials such as tables/diagrams/pictures, reading, and activity resources from Technology Home Economics textbooks. The chapters "Choice of Food and Diet" and "Food Preparation and Etiquette" generally emphasize the practical and experiential part of domestic life through using various activity resources; while the tables/diagrams/pictures and reading materials do not provide the students with first-hand experience, they support the students' learning by explaining the basic knowledge required for doing the activities and solving various problems. Within the main training courses, the objectives which the students achieved the highest marks were(in a descending order) "Table Manners and Dining Etiquette" (3.24), "Checking Nutrition Labels, Food Expiration Date, Country of Origin When Buying Food" (3.18), Additionally "Making Food" and "Planning a Healthy, Balanced Diet" hardly met the goals, the result of which shows clear relations to the well achieved objectives from the list of in-class activities that students directly participated in. Therefore, in order to increase the students' interest in the Food and Diet section of Technology Home Economics textbooks, it is recommended to encourage the students to actively engage in the class activities by developing various learning resources and teacher education/pedagogical materials, rather than following the conventional lecture-based teaching methods.

• Journal of the Korean Chemical Society
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• v.61 no.2
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• pp.65-76
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• 2017

The goal of this study was to discover factors of difficulties on learning Brønsted-Lowry acid and base focusing viewpoint of each definition. To achieve this, we were targeting statement of textbooks and perception of teachers that have a decisive effect on students' learning. Analysis of textbooks was performed for chemistry I of high school and EBS(total 6 textbooks) which dealt with Brønsted-Lowry definition. And a survey was conducted on 24 science teachers who had Brønsted-Lowry definition teaching experience. According to the textbooks analysis, characteristics of statement way were (1) statement without viewpoint of each definition, (2) convergent statement to Arrhenius. And features of teachers' perceptions were (1) teachers who have the only one viewpoint, (2) teachers with unawareness on coexisting reason of various definitions. All of these can be explained by absence from understanding viewpoints of Arrhenius and Brønsted-Lowry. To promote students' Brønsted-Lowry learning, students should obtain viewpoints of each definition. So we suggest that pre-service teacher training curriculum and statement way of textbook should reflect viewpoints of each definition.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.12 no.2
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• pp.65-76
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• 2017

The purpose of this study is to promote the activation of creative problem - solving education in Korea through the case of countries leading education for creative problem solving in order to overcome the limitation of creative problem solving education in Korea. Based on 5 success factors by our cases of United States, Singapore, and Dublin City University in Ireland, we focused on the cases and extracted five key characteristics of creative problem solving education. The university should be able to provide various information gathering and theoretical knowledge for problem definition as well as continuing guidance and mentoring, rather than one-time teaching, in the form of teaching-student cooperative learning paradigm. Second, the class should be a team - based learning team which is a key factor in overseas universities' policy, so as to be able to identify differentiated, new ideas and creative problem solving methods based on knowledge and experience sharing. The creative problem solving method derived from education could be able to collect, organize, and apply to the field continuously and comprehensively about the learning process of the individual. Evaluation of curriculum should be based on characteristics of school and characteristics of students. The results of creative problem-solving education should be evaluated in order to continuously develop and create value in addition to the outcomes of the class. Therefore, it is necessary to develop an evaluation process for each university. The university should try to make creative problem solving education create value through specialization of university. Based on this, we propose a creative problem solving education framework.

• Cartoon and Animation Studies
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• s.35
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• pp.1-27
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• 2014

This study is a process of studying an alternative educational model and a preceding analysis process of the study where a teaching method considering the brain function, learning and creative mechanism is applied with a perspective of effectively increasing the animation drawing ability. Recently, studies in each field of study is not simply limited to one major but are attempting to produce subdivided integrated educational contents through integrated study activities with other fields. It is because for any field, it has a complex structure of humanistic experience and this is the same for artistic fields. Especially, in the field of animation, a specialized area is subdivided so when looking only at the education related to the drawing, the items required for expertise should be clarified and the development of a systematic educational method is required. Therefore in this study, a literature study result to design the educational model suitable for professional characteristics of animation education method is proposed. The study aims to conceptualize and categorize the meaning of drawing that can refine the basic ability for education of animation field to suit the characteristics of majoring field. Afterwards, the components are derived through re-established concept of drawing and categories, and this becomes the basis for the process of materializing the study goal which is the follow-up work. As a result, the components are examined by defining the meaning of drawing as the motion drawing due to the characteristics of the picture contents field, and used as a basis for planning the educational model applied with brain scientific creative-learning principles.

• Korean Journal of Child Education & Care
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• v.17 no.4
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• pp.91-119
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• 2017

The purpose of this study is to determine whether using a dietary education program based on learning cycle model has any significant effect on enhancing their nutrition knowledge, dietary behavior, science-process skill and scientific attitude. The subjects of this study were children in H and G daycare center in G City. The experiment group of this study was 16 children in the class of five-year-olds and 7 children in the class of four-year-olds who passed their birthday and became five-year-olds in H daycare center. The Analysis of Covariance(ANCOVA) and Pared t-test was conducted using SPSS WINDOWS 20.0 program. The results of applying dietary education program were as follows. Experimental group indicated enhancements between pre and post test of Nutrition Achievement Test, Nutrition Quotient for Preschooler, Science Process Skill and Scientific Attitude Assessment compare to comparative group. Therefore, we can conclude that the dietary education program does have effects on enhancing of nutrition knowledge, dietary behavior, science process skill and scientific attitude. The result of this study can be used as basic data to study dietary related factors that present importance of health dietary life of young children and need to provide educational experience of healthy diet for young children.