• International Journal of Internet, Broadcasting and Communication
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• v.16 no.1
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• pp.156-162
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• 2024

The purpose of this study was to investigate the muscle activity of internal oblique, rectus femoris, and multifidus according to knee posture and foot bar angle during pilates reformer high flank exercise. Twelve women in their 20s were recruited within six months of their experience as pilates instructors. The subjects performed six types of high flanks according to knee posture and foot bar angle. EMG signals of internal oblique, rectus femoris, and multifidus during exercise were measured and analyzed by integral EMG. The collected data were processed by repeated measures two-way ANOVA. In this paper it shows the following results. First, internal oblique iEMG was not significantly different according to knee posture and foot bar angle. Second, the rectus femoris had an interaction effect according to knee posture and foot bar angle. Third, there was no significant difference in multifidus according to knee posture and foot bar angle. In conclusion, according to the exercise method, the activity of the rectus femoris was the highest in the knee bending and high foot-bar angle high plank exercise, and there was no difference between the internal oblique and multifidus.

• Communications of Mathematical Education
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• v.37 no.1
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• pp.65-84
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• 2023

The method of Lagrange multipliers, one of the most fundamental algorithms for solving equality constrained optimization problems, has been widely used in basic mathematics for artificial intelligence (AI), linear algebra, optimization theory, and control theory. This method is an important tool that connects calculus and linear algebra. It is actively used in artificial intelligence algorithms including principal component analysis (PCA). Therefore, it is desired that instructors motivate students who first encounter this method in college calculus. In this paper, we provide an integrated perspective for instructors to teach the method of Lagrange multipliers effectively. First, we provide visualization materials and Python-based code, helping to understand the principle of this method. Second, we give a full explanation on the relation between Lagrange multiplier and eigenvalues of a matrix. Third, we give the proof of the first-order optimality condition, which is a fundamental of the method of Lagrange multipliers, and briefly introduce the generalized version of it in optimization. Finally, we give an example of PCA analysis on a real data. These materials can be utilized in class for teaching of the method of Lagrange multipliers.

• Journal of Practical Engineering Education
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• v.15 no.2
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• pp.439 -447
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• 2023

This paper aims to develop a map for optimized class space using ZEP among the metaverse platforms. As a research method, the classroom space was organized so that the subject of learning became a learner, and the classroom space was modified and supplemented to optimize while being applied to elementary school computer classes. The contents of the study investigated learners' prior perception of metaverse, and compared and analyzed the advantages and disadvantages of the metaverse platform. In addition, the map was designed by reflecting the results of the survey, and after applying the map to the class, necessary APIs and apps were installed to supplement it. As a result, the learner became the subject of learning in the metaverse space, freely identified the space, and actively participated in the class. In particular, we found that students who were passive offline and those who had a low participation rate due to lack of skills participated more actively. In particular, students who were passive offline or whose participation was low due to lack of skills participated more actively. If API and JavaScript programs are added to collect log data of learners for learning analysis, real-time feedback is possible for learners, and learner feedback is possible for instructors with statistical data. If this is possible, the metaverse space can fully expect the role of a learning assistant for learners and a teaching assistant for instructors.

• The Journal of Korean Association of Computer Education
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• v.17 no.2
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• pp.87-95
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• 2014

e-Portfolio is a useful tool that enhances students' learning competency. This paper introduces 'K-folio' which is an e-Portfolio system. K-folio is currently being implemented throughout campus. K-folio is designed to apply the theoretical framework for college level e-Portfolio. We chose RAD(Rapid Application Development) as our development method which we designed to gradually improve system's capability and usability by reflecting and implementing the suggestions of students and instructors. This paper has the following contributions: first, it proposes the e-Portfolio implementation model that is more applicable to the college environment. second, the study identifies RAD as the most suitable method for e-Portfolio development. third, it mentions important technical implications regarding the development and operation for their e-Portfolio.

• Journal of the Korean Society for Library and Information Science
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• v.50 no.3
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• pp.403-428
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• 2016

The aims of this study are to investigate the influence of the newly developed cataloging rule, RDA on the LIS cataloging education and to propose Korean LIS cataloging curriculum in a time of RDA. This study specially intended to examine the coexistence of the AACR and RDA and its implications on the LIS cataloging curricula design in the limited time of the course of study. For this purpose, this study examined the rapidly changing cataloging circumstances and how it affects on the cataloging education in LIS. This study also explored the students' as well as instructors' opinion and demand on cataloging education specially regarding RDA. As a result, this paper designed a cataloging education model including RDA curriculum and it also suggested cataloging syllabus based on the education model.

• The Journal of the Korea Contents Association
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• v.20 no.12
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• pp.311-321
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• 2020

This paper presents the current status of creative writing education through examining studies which have been published since 2000 and discusses the future direction. Following the Korean government's educational slogan to nurture creative and competent talents, creative writing, as one of foundational skills across disciplines, had begun to be introduced into the curriculum of liberal arts colleges from early 2000s and has become a required course since 2015. Although many studies on creative writing education have been conducted during this period, whether creative writing, which enhances creativity dealt in cognitive sciences, can be recognized as an independent field of study calls for in-depth discussion. The ongoing issues concerning creative writing education involve a lack of professional instructors and absence of the operational and evaluative system. What's necessary is a clear definition of the extent of creative writing education; the educational efficiency of the proposed contents also need further verification. Therefore, as the basis for future constructive conversation, the current paper recapitulates the literature on creative writing education in Korean universities, classifying studies based on periods and cases of contents, and presents the direction regarding the operation of and research on creative writing education.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.24 no.4
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• pp.341-362
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• 2013

With the cultural and educational functions of public libraries becoming revitalized according to social changes, there has been a development of reading cultural programs. This study researched the operating conditions of reading culture programs for elementary school students in public libraries in Suwon City for the past 5 years and presented the programs' drawbacks and improvement plans drawn from surveys on user satisfaction. An analysis of the survey results yielded the following suggestions for improvement: forming a consultative group with other managers of reading culture programs in Suwon's public libraries, promoting using various media, forming a human resource pool to hire professional instructors, operating of the educational programs for potential volunteers, expanding of the facilities for reading culture programs, and linking with the other folk culture and art organizations in order to develop classes folk culture and art organizations. The results of this paper will be used as a reference when operating conditions of reading culture programs for elementary school students in public libraries in Suwon City, and they will offer the opportunity to implement problems according to needs of participants.

• Journal of The Korean Association of Information Education
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• v.14 no.4
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• pp.651-658
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• 2010

This paper is to study adequacy of developing tutorial series for primary school students regarding MOS certification and to analyze a validity. In order to analyze a level of difficulty, current primary teaching materials being used after class, in comparison with ICT discretionary hour materials being used through primary discretionary class, were evaluated. It was done by primary teachers with in- depth understanding of a level of difficulty and after class instructors using Likert scale through quantitative analysis. As a result, level of PowerPoint has a satisfactory fit (76%), however, the degree of difficulty of Word and Excel is quite high. On its subject matter, there is quite a dispute with present curriculum. Therefore, in order to introduce MS-Word or Excel, it is necessary to adjust a level of difficulty or related subjects according to the level of students.

• Journal of The Korean Association For Science Education
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• v.25 no.5
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• pp.571-582
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• 2005

In spite of the importance of cognitive conflict in conceptual change, there has been little research on the characteristics of cognitive conflict in students enrolled at vocational high schools. The purpose of this study was to expose these students' cognitive conflict types and investigate characteristics of cognitive conflict according to the type of cognitive conflict. This paper examined how vocational students' motivational beliefs and epistemological beliefs affect the process of cognitive conflict when students are confronted with an anomalous situation related to the action and reaction concept. Results indicated that many vocational students experienced low levels of cognitive conflict and remained passive during the explanation of anomalous phenomenon or easily desisted any attempt to resolve the conflict situation because of their epistemological belief to depend on the external absolute knowledge of teachers, an extrinsic motivation to choose easier tasks, or reliance on the teachers' reputations. Therefore, Instructors need to recognize these characteristics in order to facilitate vocational students' conceptual change when presenting cognitive conflict tasks.

• Journal of Engineering Education Research
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• v.6 no.1
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• pp.15-21
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• 2003

This paper reports the results of course restructuring employing design projects in an introductory mechanics of materials course at Pennsylvania State University. Unlike traditional lecture courses, students were encouraged to learn the rudiments of mechanical design and how materials standards, economics, manufacturing, environmental, legal (liability) and societal (safety) concerns relate to design. Through conducting collaborative design projects, the instructors helped students to acquire more advanced skills such as team-based decision making, integration and establishment of criteria, use of modern design theory, consideration of alternative solutions, and application of realistic constraints. In order to examine the impact of new course changes on students' learning, a survey was conducted in 1998 Fall semester. According to the results of survey analyses, students reported high values on this introductory mechanics of materials course. However, they did not give high values on the design projects. Rather, they preferred lecture sessions. Additionally, it was also found that students who earned higher grades from a prerequisite course(statics) showed lower values on the design projects. Implications for engineering educators and suggestions for future research studies were discussed.