• Maxillofacial Plastic and Reconstructive Surgery
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• v.33 no.1
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• pp.93-101
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• 2011

Reconstruction following a resection of malignant oral cavity tumors is one of the most difficult problems in recent oral oncology. The radial forearm free flap (RFFF) is a thin, pliable soft tissue flap with large-caliber vessels for microvascular anastomosis. Its additional advantages include consistent flap vascular anatomy, acceptable donor site morbidity and the ability to perform simultaneous flap harvest with a tumor resection. For a better understanding of RFFF as a routine reconstructive procedure in oral and maxillofacial surgery, the constant anatomical findings must be learned and memorized by young doctors during the special curriculum periods for the Korean national board of oral and maxillofacial surgery. This review article discusses the anatomical basis of RFFF in the Korean language.

• Journal of Educational Research in Mathematics
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• v.13 no.1
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• pp.25-55
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• 2003

In the school mathematics, the negative numbers have been instructed by means of intuitive models(concrete situation models, number line model, colour counter model), inductive-extrapolation approach, and the formal approach using the inverse operation relations. These instructions on the negative numbers have caused students to have the difficulty in understanding especially why the rules of signs hold. It is due to the fact that those models are complicated, inconsistent, and incomplete. So, students usually should memorize the sign rules. In this study we studied on the didactical phenomenology of the negative numbers as a foundational study for the improvement of teaching negative numbers. First, we analysed the formal nature of the negative numbers and the cognitive obstructions which have showed up in the historic-genetic process of them. Second, we investigated what the middle school students know about the negative numbers and their operations, which they have learned according to the current national curriculum. The results showed that the degree they understand the reasons why the sign rules hold was low Third, we instructed the middle school students about the negative number and its operations using the formal approach as Freudenthal suggest ed. And we investigated whether students understand the formal approach or not. And we analysed the validity of the new teaching method of the negative numbers. The results showed that students didn't understand the formal approach well. And finally we discussed the directions for improving the instruction of the negative numbers on the ground of these didactical phenomenological analysis.

• Journal of the Korean School Mathematics Society
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• v.2 no.1
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• pp.121-131
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• 1999

Recently our educational methodologies have been changed to an open, student-centered structure. Mathematics is now learned through experiential interaction and less emphasis is placed on abstract theories. For example, the axioms of the geometry in the middle school curriculum have been expressed by using symbolic letters. Students find these abstractions very difficult and it hinders their ability to grasp the significance of geometrical concepts. In an effort to simplify these abstract concepts and enhance the students interest and ability to learn, the GSP (Geometry Sketchpad) is proving to be a useful and effective tool. First, Second and third grade students have found the GSP to be extremely useful. While the pad has no sound function it still enables the students to freely change diagrams without disrupting the integrity of the program. There is also a running order of instructions at the bottom of the screen to facilitate the step by step understanding of mathematical procedures. This function makes the program ideal for use by teachers, students and even beginners. Anyone experiencing difficulty can get immediate assistance from the guidebook which is located at the back of each program. Allowing individuals to manipulate and actually see the changing deductions and axiom proofs on the computer screen provides them with immediate feedback and reinforcement. It also enhances their overall interest in learning geometry. The use of the GSP is proving to be an innovative and effective tool in facilitating the transition of mathematics into an open, student-centered educational forum.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.05a
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• pp.895-897
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• 2013

The Capstone design, has become one of the most important topics in engineering education. The Capstone Design a course with a different format from the traditional form of education and, by integrating the training learned in the course of expertise. Through it, you will learn how to analyze and design solutions to possible problems arising from industry. It can improve the practical skills required in the industry. The students can participate in the educational process according to the pre-prepared curriculum, rather than passively receiving the education in the form of an active. In this paper, we check the operating status for the Capstone Design Education. The future, through the satisfaction evaluation model Capstone Design Capstone Design effective management plan is presented.

• Journal of Fisheries and Marine Sciences Education
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• v.24 no.6
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• pp.884-900
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• 2012

This study put emphasis on improving the quality of lives of the elementary students with disabilities by planning and realizing software for the purpose of teaching eating habits. It tried to develop software which constantly applies and practices contents learned from content systems subordinate to practical subjects. It is mainly consisted of 'cooking and eating' among the content systems of the practical subjects in the basic curriculum. To this end, it chose four modules as their final choices, 'eating various foods, cooking happily, setting the table, and washing the dishes.' Media is in CD-ROM Title form. Macromedia Flash and Macromedia Director were used as authoring tools. Program is basically going along centering on small units. And activities in each topic are composed of thinking, investigating, and organizing order. When we applied the software, developed in this research, to 3 elementary students with disabilities using multiple probe design across subjects, it had positive effects on eating habits related functions of all participants.

• Journal of architectural history
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• v.10 no.1 s.25
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• pp.41-59
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• 2001

This study tries to analyze the influence of IIT's educational system on the Jong Soung Kimm's Architecture. Architect Kimm was the first student in Korea who gained admission to the IIT and was directly learned from Mies van der Rohe. At IIT, he completed a university course from 1956 to 1961, and finished a degree of master under the direction of Professor Myron Goldsmith in 1964. After the graduation, he entered Mies's office and became the professeur of IIT from 1966 to 1978. In consideration with these facts, it is no exaggeration to say that Kimm's architecture was formed by the IIT's educational system and Mies's architectural principles. According to the synopsis of the 5-year curriculum 1944-45, the object of architectural work in IIT is the clarification of : 1)the structure as an architectural factor, its possibilities and limitations 2) space as an architectural problem 3) proportion as a means of architectural expression 4) the expression value of materials 5) the application of these principles by means of free creative work. Architect Kimm's works designed in Korea reflect well these objectives. But Kimm also knew well the problems of IIT's educational system. After the retirement of Mies, IIT's educational system had the tendency to overstress the technology of structure and simplify the complexity of Miesian architectural principles. In opposition to this tendency, architect Kimm continued to keep the spacial and formal subtlety which possess the Mies' original architecture. This shows very well the future direction of Kimm's architectural activities.

• The Mathematical Education
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• v.43 no.2
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• pp.139-149
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• 2004

This study was initiated by the idea to help students to be more ideally educated following the 7th curriculum that seeks the proactive students along with creativity for the 21st century. Mind-map was the main tool throughout the study and this was performed to find answers for the following questions : 1) to examine how students' drawing a mind-map affects their mathematical tendency or emotional aspects (motivation for study, interest, etc); 2) to investigate the types and characteristics of mind-maps that students draw; 3) to analyze advantages and obstacles that they experience during the process of drawing a mind-map and provide some suggestions for overcoming them. The research shows that students were highly motivated by the drawing a mind-map. There are types of mind-maps: tree shape and radial shape, and each shape has its own advantages. But the more important factor for being a good mind-map is where and how each concept is located and connected. Although it is true that drawing a mind-map helped students to see the bigger structure of what they learned, but there are several hardships taken care of. The study suggests to extend the experiment to various levels of students and diverse contents.

• School Mathematics
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• v.18 no.2
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• pp.425-440
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• 2016

Concept images play an important role in the acquisition of mathematical concept. However, sometimes concept images are derivatives of student's misconceptions. In addition, students always learn concept images despite teachers' efforts to teach concept definitions. Therefore, teachers need to know about all the concept images of a particular concept. This study aimed to analyze the concept image that students have about the triangle when they have already learned about the triangle in school. It was found that some students have different concept images about the triangle between Semo. Moreover, many students have misconceptions about vertices, sides, and angles. In particular, students think Gak denotes a side, although it means angle. Based on these results, I suggest that the curriculum and textbook require improvement.

• Journal of Korean Elementary Science Education
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• v.38 no.1
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• pp.116-129
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• 2019

This study investigated elementary students' spatial thinking and visualization when they learned the shape of volcanoes. For this purpose we used GeoMapApp to design instruction program and assessment items. In the instruction, students were asked to connect the floor plan view of Jeju island with the cross-sectional view of the same figure producted by GeoMapApp. Then they were asked to classify four sets of pictures of volcanoes based on the similarities of figures, that is, dome-shaped and shield volcanoes. In the assessment students solved three questions which examined how they connected the plan view and cross-sectional profile of Kilauea, draw cross-sectional profile of Mt. Fuji, and distinguished a shield volcano and dome-shaped one. Students' discourse data during the class were analyzed according to the amount to showing their spatial thinking and visualization. The instruction program using GeoMapApp assisted students to facilitate their spatial thinking for understanding of volcanoes. The outcomes of assessment showed even elementary students had good spatial thinking and visualization. Therefore, we argued spatial thinking and visualization for geoscientific understanding need to be included in the national science curriculum for elementary students.

• Annual Conference of KIPS
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• 2010.04a
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• pp.276-279
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• 2010

This paper is about a development of effective practice subject in electronic circuit textbook of industrial high school. This paper introduces generally about the practice subject in electronic circuit textbook of industrial high school of the 7th National curriculum and presents problem of current practice and makes an alternative idea that improve current practice. The contents of current electronic circuit textbook of industrial high school have variety topics and these topics are independence and separated. So students have some problems to apply of learned knowledge. Therefore, researcher improved the various electronic circuit practice in current electronic circuit text book and added new practice and manufactured a electronic circuit module based on these circuits. And researcher suggested new practice subject what useful electronic equipment that assembled module of result of electronic circuit practice of each section. When the last subjects are accomplished the students may have feel of achievement and high study effect from these practice. The practice subjects of this paper were manufactured after verification and tested it's performance by computer simulation program I hope that these new practice subjects make effective understanding and application of electronic circuit for student.