• Journal of Korean Elementary Science Education
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• v.21 no.2
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• pp.171-186
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• 2002

This is a study on science related class(Object Lesson in Germany) of a German elementary school. The research methods were participant observation, content analysis of various learning materials. In this study, the themes and processes of the Object Lesson are analyzed from the 1st grade to 1st semester of 2nd grade in B-G Schule at Goettingen. German Object Lesson(GOL) is performed as integrated education. It is started with experientially familiar materials and proceeded to deeper contents with special knowledges. The students have lots of time to play with friends, to do what they want, to think about others and etc. in GOL. They don't teach their students many science knowledges but inquirying methods to make their own knowledges. From this analysis results, the implications for Korean science education are to be described. The implications are as follows; We might make our science class be integrated one, especially in elementary science course, to develop several familiar materials, to give student direct experiences, to teach inquirying methods for making students' own science knowledges. And all of the adults included national authorities, economic companies, social parties, several specialists, should give supplies to school science class and have responsibilities on education

• Korean Journal of Community Nutrition
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• v.15 no.5
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• pp.636-647
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• 2010

This study was conducted for researching demand on dietary education of low-level elementary school students and to develop an activity based textbook and a teaching manual on the subject. For necessity of dietary education, 88.8% of subjects answered dietary education is needed. The desirable frequency of the education was once a week (65.7%). The most appropriate time for the education was "school lunch" (37.5%), "special activity" (29.9%), "regular class" (12.4%) and "after school activity" (12.1%). The most preferred educational method was "experiment and practice" (40.1%). The desirable educational materials were "computer materials" (20.7%), "actual objects" (20.1%), "videotapes" (16.5%), "photographs-pictures" (12.2%) and "fairy tales-cartoons" (12.2%). The students wanted dietary information as "cooking" (26.1%), "growth and nutrition" (23.7%) and "right food information" (20.1%). The textbook was composed of five major chapters, which were "Traditional Dietary Culture", "Food", "Dietary Habit", "Hygiene and Environment" and "Cooking". Each major chapter had five to six smaller chapters, adding up to total of 32 chapters. The textbook had fun characters, illustrations, photographs and cartoons to deliver the main theme of each chapter. The textbook was in activity format so that it coul be readily and directly used in actual classes. The teaching manual was composed of background, goals, teaching plans and teaching points. The smaller chapters had learning goals, teaching-learning resources, important points, teaching-learning processes and reference materials. Videos were produced to help cook five snacks in the cooking chapter. Also, "Healthy Song" was created to be used in classrooms. This textbook will be helpful in children's right dietary habits and growth.

• Journal of The Korean Association of Information Education
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• v.19 no.4
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• pp.399-408
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• 2015

The purpose of this study was to design and implement the smart system for supporting instructional materials employing characteristics of smart education and flipped learning and to examine the effects of the system on students' achievement and satisfaction in elementary education. The system was developed on the basis of the curriculum with the design strategies of the smart system. The results of the analyses showed that the achievement of the students was increased over the series of the tests. It was also found that the system positively influenced students' self-directed learning time and their satisfaction in social studies education. The implications of the results of the study and suggestions for the future study were discussed.

• Journal of the Korean Geographical Society
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• v.48 no.6
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• pp.994-1008
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• 2013

In this paper, we describe two exploratory examples in the use of Augmented Reality (AR) for geographical visualization regarding refinement of visual content in geography textbooks and learning motivation of geography students. Currently, teaching and learning materials with AR technology and their utilization in the geography classroom have become a new topic in geographical research themes, and this trend has increased. Adequate development and utilization of geographical materials is an important starting point for smart education research in geography. This paper describes the system and software, and the implication of marker AR applications for teaching and learning geography in the classroom. For the AR applications to be utilized in geography education, two marker based AR examples, virtual globe and visualization of topographical features, are presented and their utilization aspects are discussed. Finally, from the discussion stated in this paper, it can be inferred that AR is useful for exploring geographical materials, and marker based AR will contribute to progress in spatial science and geographical education research.

• Journal of Fashion Business
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• v.25 no.4
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• pp.92-108
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• 2021

The purpose of this study was to develop a free semester program using sustainable materials therefore improving the clothing & textiles section of the middle school textbook and the systematic and in-depth sustainable fashion education based on theme selection activity, as one of free semester system activities in the middle school. Our analysis on the programs, which was performed from 2018 to 2019, showed that the clothing & textiles programs were majorly focused making simple household items through basic needlework and knitting. The programs that related to the sustainable fashion education were environmental programs associated with other textbooks, or mainly included simple upcycling and were mainly operated as arts & physical education or club activities, rather than theme selection programs. According to results from a questionnaire survey on teachers incharge of the system, they had an intention of starting sustainable fashion education program or clothing & textiles section but failed due to low number of participants, practice cost, and time burden. Based on our analysis, this study proposed a 17-session based free semester program that includes the understanding of the sustainable fashions concept, classification of sustainable materials and systematic and stepwise practice in association with the middle school textbook clothing & textile section. The teaching materials developed in this study are expected to be incorporated in the program that helps students understand the right concept of sustainable fashions and respond to the pending environmental issue actively and systematically.

• Macromolecular Research
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• v.17 no.12
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• pp.1025-1031
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• 2009

Several kinds of biodegradable hydrogels were prepared via in situ photopolymerization of Pluronic F127/poly($\varepsilon$-caprolactone) macromer and acrylic acid (AA) comonomer in aqueous medium. The swelling kinetics measurements showed that the resultant hydrogels exhibited both thermo- and pH-sensitive behaviors, and that this stimuli-responsiveness underwent a fast reversible process. With increasing pH of the local buffer solutions, the pH sensitivity of the hydrogels was increased, while the temperature sensitivity was decreased. In vitro hydrolytic degradation in the buffer solution (pH 7.4, $37^{\circ}C$), the degradation rate of the hydrogels was greatly improved due to the introduction of the AA comonomer. The in vitro release profiles of bovine serum albumin (BSA) in-situ embedded into the hydrogels were also investigated: the release mechanism of BSA based on the Peppas equation was followed Case II diffusion. Such biodegradable dual-sensitive hydrogel materials may have more advantages as a potentially interesting platform for smart drug delivery carriers and tissue engineering scaffolds.

• Bulletin of the Korean Chemical Society
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• v.32 no.7
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• pp.2279-2285
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• 2011

The geometries, electronic structures and absorption spectra of the two organic triphenylamine-based dyes TA-St-CA and TA-DM-CA, containing identical electron donors and acceptors but the different conjugated bridges, were studied by density functional theory (DFT) at the B3LYP and PBE1PBE levels, respectively. The influence of para-orientating methoxyl units on the electronic structures and light absorption properties of the dyes and the consequent photovoltaic performance of the dye-sensitized solar cells (DSSCs) were investigated in detail. The results indicate that the introduction of the para-orientating methoxyl units into the conjugated bridge induces the increased absorption wavelength as well as the more negative EHOMO corresponding to the bigger driving force $(E_{I^-/I^-_3}-E_{HOMO})$ for dye reduction, which together improve the photovoltaic performance of TA-DM-CA, although there is a decline of the open circuit voltage caused by the more negative $E_{LUMO}$.

• Korean Journal of Materials Research
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• v.19 no.3
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• pp.137-141
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• 2009

Density functional theory was utilized to investigate the growth of an indium nanowire on a Si (001) buckled surface. A site between the edge of two Si dimers is most favorable when the first In atom is adsorbed on the surface at an adsorption energy level of 2.26 eV. The energy barriers for migration from other sites to the most favorable site are low. When the second In atom is adsorbed next to the first In atom to form an In dimer perpendicular to the Si dimer row, the adsorption energy is the highest among all adsorption sites. The third In atom prefers either of the sites next to the In dimer along the In dimer direction. The fourth In atom exhibited the same tendency showed by the second atom. The second and fourth In adsorption energy levels are higher than the first and third levels as the In atoms consume the third valence electron by forming In dimers. Therefore, the In nanowire grows perpendicular to the Si dimer row on the Si (001) surface, as it satisfies the bonding of the three valence electrons of the In atoms.

• Convergence Security Journal
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• v.19 no.2
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• pp.137-146
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• 2019

This study seeks into an education goal and an achievement level based on investigating relationships between NCS communication abilities and communication educations for petty officer major students. Also, the study looks deep into approriate Integrated document training materials. A goal of the petty officer's communication education, which is supposed to achieve more than the average standard is improving abilities to understand documents and create documents related to the real petty officer's life. The goal of this communication study is designed with considering the petty officers' ability factors and the detailed weekly achievement goals based on characteristics of petty officers. the proper way to reach the goal of the Integrated document training materials is constructed as three step process; Presenting subject - group activity - handing in final activity report. Also, the education is designed to write evaluation forms continuously for students to keep eyes on their achievement levels. As the importance of NCS is emphasized these days, the Integrated document training materials present the ways how this education is needed to go on, and this shows ways to improve students' document writing abilities. For the last, the study mentions a proposal for further tasks on this field.

• The Journal of Information Technology
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• v.10 no.3
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• pp.1-14
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• 2007

We have studied the methods to connect homes with a digital network and apply home automation to education. We presented the possibility of integrated education where public education at school can be extended to home. The hardwares related with home automation are continuously in development. We have demonstrated the materials appropriate for the levels of individual students with home network information, and studied methods of education.