• Archives of design research
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• v.18 no.2 s.60
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• pp.325-334
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• 2005

The purpose of this thesis is to explore the fundamental reasons and general circumstances of the introduction of geometric shape to the 20th century's design education. The modern design education was directly influenced by the German Kindergarten Movement and its educational ideal, so they began to employ geometric shapes in visual education. When Friedrich Frobel, a professional German child educator of the 19th century, invented the 'Spielgaben,' it soon became a popular educational tool. It was a turning point in the child educational system, from then they began to actively employ 'tools' in art education. The Spielgaben was created based on the geometric principle of a popular block game of the 19th century. On the other hand, a game program called 'Bechaftigungsmaterial' led early Modernists to adopt geometric shape in their works. Then, geometric shape were applied to a primary educational program designed by the Bauhaus that gave birth to the Modern design education in the 20th century. likewise, the substantial reasons why the principles of point/line/plain and geometric shapes had been taken in the 20th century design education can be explained through this historical background. This research is to investigate how Kindergarten Movement and Modern design education can be associated with each other, particularly in the light of geometric elements. Therefore, I first referred to the historic records in order to reveal their relation, and then analyzed the similarities and differences between the two activities. In result, I could explore the relationship between child educational tools and the 20th century's design education.

• Journal for History of Mathematics
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• v.18 no.3
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• pp.39-54
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• 2005

In Chinese Mathematics, Jia Xian(要憲) introduced Zeng cheng kai fang fa(增乘開方法) to get approximations of solutions of Polynomial equations which is a generalization of square roots and cube roots in Jiu zhang suan shu. The synthetic divisions in Zeng cheng kai fang fa give ise to two concepts of Fan il(飜積) and Yi il(益積) which were extensively used in Chosun Dynasty Mathematics. We first study their history in China and Chosun Dynasty and then investigate the historical fact that Chosun mathematicians Nam Byung Gil(南秉吉) and Lee Sang Hyuk(李尙爀) obtained the sufficient conditions for Fan il and Yi il for quadratic equations and proved them in the middle of 19th century.

• Journal for History of Mathematics
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• v.18 no.4
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• pp.1-16
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• 2005

Chosun dynasty mathematician Park Yul (1621 - ?) wrote San Hak Won Bon(算學原本) which was posthumously published in 1700 by his son Park Du Se (朴斗世). It is the first mathematics book whose publishing date is known, although we have Muk Sa Jib San Bub (默思集算法) by Gyung Sun Jing (慶善徵, 1616-?). San Hak Won Bon is the first Chosun book which deals with tian yuan shu (天元術) and was quoted by many Chosun authors. We do find it in the library in Korea University. In this paper, we investigate its contents together with its historical significance and influences to the development of Chosun dynasty Mathematics and conclude that Park Yul is one of the most prominent Chosun dynasty mathematicians.

• Korean Journal of Logic
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• v.2
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• pp.63-89
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• 1998

확률에 관한 수학적 탐구가 시작된 18세기이래 다양한 확률에 관안 이론들이 등장하기 시작했다. 이렇게 다양한 확률 이론 중에서 가장 뒤늦게 제안되어 발전되어 온 주관주의 확률 이론을 소개하고 그 이론에 대한 평가를 시도하는 것이 이 논문의 목적이다. 주관주의 확률 이론은 램지에 의해서 제안되고 드 피네티와 새비지 등에 의해서 발전되어 왔는데, 그 이론의 핵심은 확률을 주관적인 믿음의 정도(degree of belief)로 파악하는 것이다. 이 이론은 다른 여러 가지 이론과 비교하여 많은 장점을 가짐에도 불구하고 몇 가지 문제점을 갖는다. 그 중에서도 기장 큰 문제점은 어떤 사건에 대한 객관적인 확률을 부정하는 것이다. 따라서 주관주의 이론에 대한 적절한 평가는 바로 이러한 문제점에 대해서 어떠한 대답이 주어질 수 있는가에 달려 있다고 할 수 있을 것이다. 드 피네티의 교환 기능한 확률(exchangeable probability)이리는 개념과 그와 관련된 표상정리(representation theorem)는 부분적으로 이러한 문제에 답하는 것처럼 보인다. 그러므로 필자는 이 논문에서 이러한 주관주의 확률 이론의 내용을 살펴보고 그에 대한 평가를 함으로써 주관주의 확률 이론이 갖는 의의를 논할 것이다.

• 전기의세계
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• v.39 no.4
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• pp.10-18
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• 1990

우리나라 전기전자공학과는 완전히 분리되어 있고 그 외에도 제어계측공학과, 전산기공학과, 전자통신공학과 등으로 분리되어 있으나 선진국에서는 하나의 학과로 되어 있다. 그리고 우리나라의 교과과정은 졸업에 필요한 과목수가 지나치게 많아서 한과목을 깊게 공부하는대산 여러과목을 훑어보는 식으로 운용되어 왔다. 전공과목수가 9개(실제로는 미분방정식과 졸업논문을 제외하면 7개) 밖에 안된다고 해서 M.I.T.의 전기전자공학 교육이 우리나라보다 못하다고 말 할 수는 없다. MIT의 교과과정이 오늘과 같이 된데에는 오랜 연구와 경험이 필요하였다. 즉 기술 과목만을 많이 가르쳐서 졸업시키면 졸업생의 대부분이 인문사회 출신 사장 아래에서 기술자 역할밖에 못한다는 것을 알았던 것이다. 2차 대전 당시 레이다를 포함한 각종 신형전자장비를 개발한 것은 공대출신보다는 물리학과 수학과 출신의 역할이 컸던 것이다. 특히, SPUTNIK이 1957년에 발사된 이후 미국의 공대들은 과학과목에 큰 비중을 두게 되었던 것이다. 최근에는 그 반작용으로 설계과목에 비중을 두기 시작하였다. 졸업후 2-3년 지나면 별로 쓸모없는 과목들을 많이 가르치는 것보다는 기초적인 과목만을 충실하게 가르치는 것이 훨씬 좋다고 본다.

• The Journal of the Korea Contents Association
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• v.18 no.11
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• pp.655-664
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• 2018

Retina transforms the external light into electrical signal that stimulates visual cortex of the brain. Electrical modeling of the retina is useful to understand its structure and action that is a prerequisite to implement the retina as a hardware device. This paper introduces a 2-D electrical network model of vertebrate's retina considering signal pathway of retinal cells and synapses. We implemented a simulator of the retina based on the electrical network model to analyze its operation under various circumstances. Compared to the prior studies, It might contribute designing of artificial retina device in terms of that this study specifically observed input and output reactions of each cell and synapse node under various light intensity on the retina.

• Journal of The Korean Association of Information Education
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• v.18 no.2
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• pp.285-294
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• 2014

Recently, research using robots as a learning tool has increasingly been conducted in K-12 education area. It has been known that hands-on robots give positive educational effect not only on science and mathematics, but on STEAM activity, and help improve the abilities necessary in the 21 century, such as critical thinking, creativity, communication skills, and team work. Despite many research achievements, there is still few research on robot based curriculum to improve the instrumental application of robots in the primary and secondary education fields. In other words, there is a lack of studies of systematic educational contents, educational methods and educational evaluation to increase the instrumental application according to schools and class years. Therefore, this study analyzed domestic and foreign robot based curriculums and relevant cases to develop 'robot' related educational programs in primary school and middle school, suggested the achievement objectives in the robot area as a sub category of the computer science curriculum which will be revised, and proposed teaching-learning method and evaluation method.

• The Journal of Korean Philosophical History
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• no.37
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• pp.97-134
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• 2013

Kim Ee-man was born and grew up in Jecheon (堤川). As a government officer and a Confucian scholar belonging to Namin School, Kim Ee-man was active in the early and middle of 18th century. Kim Ee-man composed good poems since he was a child. In addition to being a good poet, Kim Ee-man later became a model government officer, who had thorough awareness on serving citizens (爲民). When he was a governor in Yangsan (梁山) county, he built an embankment for farmers by out of his own salary. The academic world of Kim Ee-man faithfully succeeded the basis of Toegyehak (退溪學) and he took Sohak (小學) as important. The reason of Kim Ee-man having established a practical guideline in the form of inscription and proverbs was also directly related to the issue of moral practice. Kim Ee-man also received the influence of ancient classic study from his teacher Lee Seo-woo (李瑞雨) and took Yookgyeong (六經, Six Classics in China) important in practice. Kim Ee-man started the study on Joojahak (朱子學, the doctrines of Chu-tzu) in later years. He became more thorough in being a public figure while reinforcing effort on differentiating the principle of heaven (天理) and human desire (人欲).