• 한국콘텐츠학회논문지
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• 제22권4호
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• pp.468-478
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• 2022

전교조 핵심 이념이었던 '참교육'은 뉴미디어 시대의 자장 안에서 재전유된다. 젊은층을 중심으로 활발히 사용되는 이 단어는 '사회적 비난의 대상이 되는 사람 대한 응징'을 뜻한다. 최근 인터넷에서 흔히 볼 수 있는 '참교육 콘텐츠'의 특징으로는 첫째, '단편화' 경향을 보인다는 점이다. 참교육 콘텐츠들은 분량이 짧고, 내용이 매우 지엽적이다. 이는 총체성이 사라지고 작은 이야기들을 소비하는 포스트모던 사회의 특징을 반영한다. 둘째, 선악을 가르는 기준이 지극히 '자의적'이라는 것이다. 기존 권선징악 서사들은 사랑·배려·평화 등 어느 정도 보편적인 가치를 지니고 있었던 데 비해, 참교육 콘텐츠는 지극히 편협한 시선으로 선악을 구분한다. 자의적 기준에 대한 정당성을 얻기 위해 택하는 방법은 공공의 분노를 부추기는 것이다. 셋째, '유머'가 가미되어 있다는 점이다. 여기서 유머는 혐오의 정서와 결합하며, 사람들의 비판의식을 약화시킨다는 문제를 야기한다.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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• pp.139-142
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• 2008

Developing from stereoscopic to autostereoscopic, researchers on display technology are trying to provide more depth cues to viewer, leading to the advent of true 3D display. Volumetric 3D displays seem to be practical technology at present. Ultimate display will function like human vision system, with characteristics of providing all depth cues and free interaction.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.1371-1374
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• 2009

According to depth cues of an image, the optical engine of the solid volumetric true 3D display can project a sequence of slices of a 2D image to corresponding display at a set of liquid shutters (LC) locating at different depth. A single DLP optical engine developed for a solid volumetric true 3D display consists of a lamp, reflector, color wheel, hollow integrator, relays, DMD, and projection lens. The simulation results show that the optical engine designed for single DLP volumetric true 3D display satisfies the requirements.

• 한국수학교육학회지시리즈A:수학교육
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• 제51권2호
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• pp.161-171
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• 2012

Generally mathematics is regarded as a subtle subject to grasp their true meaning. And teacher's personal conceptions of mathematics influence greatly on the teaching and learning of mathematics. More over often teachers confess their difficulties in explaining the true nature of mathematics. In this paper, applying the theory of epistemology, we tried to search factors that must be counted important when trying to understand the true nature of mathematics. As results, we identified five characteristics of mathematical knowledge such as logical reasoning, abstractive concept, mathematical representation, systematical structure, and axiomatic validation. Next, we tried to investigate math education major students' conception of mathematics using these items. To proceed this research we asked 51 students from three Universities to answer their opinion on 'What do you think is mathematics?'. Analysing their answers in the light of the above five items, we got the following facts. 1. Only 38% of the students regarded mathematics as one of the five items, which can be considered to reveal students' low concern about the basic nature of mathematics. 2. The status of students' responses to the question were greatly different among the three Universities. This shows that mathematics professors need to lead students to have concern about the true nature of mathematics.

• 한국도서관정보학회지
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• 제37권3호
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• pp.235-263
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• 2006

독서교육이 독서 본질에서 벗어나 파행적으로 이루어지는 왜곡된 문제에 대해 세 가지로 논의하였다. 독서교육의 왜곡 문제를 타개하기 위해서는 우선 독서의 본질에 대해 숙고해 볼 필요가 있었다. 독서교육자가 아닌 독자의 입장에서 독서 본질을 살펴보고 독서 본질에 충실한 독서 프로그램 사례에 대해 소개하였다. 마지막으로 도서관에서 독서 본질을 구현하기 위한 독서 프로그램의 운영 방향에 대해 제시하였다.

• 한국수학교육학회지시리즈A:수학교육
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• 제40권2호
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• pp.291-315
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• 2001

There are some problems in the introduction of proof in middle school mathematics. Among the problems, one is the use of postulates and the another is the methods of proof how to connect a statement with others. The first case has been treated mainly in this note. Since proof means to state the reason logically why the statement is true on the basis of others which have already been known as true and basic properties, in order to prove logically, it is necessary to take the basic properties and the statement known already as true. But the students don't know well what are the basic properties and the statement known already as true for proving. No use of the term postulation(or axiom) cause the confusion to distinguish postulation and theorem. So they don't know which statements are accepted without proof or not accepted without proof, To solve this problems, it is necessary to use the term postulate in middle school mathematics. In middle school mathematics, we present same model of the introduction of proof which are used the postulates needed for the proof.

• 한국실내디자인학회논문집
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• 제15권6호
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• pp.196-204
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• 2006

The education for the disables has been eliminated till now, thus, it is very important that we take them as our real citizens and help them to improve their social standings and extend their chances for occupations. It's true that admissions into a university for the disabled have been promoted, but it's also true that their droppings out of college because of physical environments have been frequently found. Without data on the universal education surroundings and full understanding on the handicapped, making up the week points in the current surroundings is not useful for them in essence. This study is on the evaluating the korea national college of rehabilitation & welfare, set up for the disabled, by the universal design standards and analyzing their satisfaction with the education surroundings, in addition to that, improving on methods of universal education surroundings.

• 한국수학사학회지
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• 제26권5_6호
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• pp.401-416
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• 2013

There has been increasing interest in recent years in the pedagogical importance of counter-examples that focuses on pedagogical perspectives. But there is no research that undergraduate students' generating counter-examples and proposing the true statements. This study analyze 6 undergraduate students' response to interview tasks and the process of their generating counter-examples and proposing true statements. The results of interviews are that the more undergraduate students generate various counter-examples, the more valid they propose true statements. If undergraduate students have invalid understanding of logical implication and generate only one counter-example, they would not propose true statements that modify the given statement, preserving the antecedent. In pre-service teacher's education and school mathematics class, we need to develop materials and textbooks about counter-examples and false statements.

• 대한수학교육학회지:학교수학
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• 제1권1호
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• pp.39-58
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• 1999

Nowadays, open education is popular in Korea. Various open education methods such as open time, open space, open curriculum, team teaching, small group learning are actively introduced into mathematics education. Current 'open education in mathematics' in Korea can be characterized as the application general education reform movement (open education movement) to mathematics education. This movement is interested in teaching methods rather than contents. In this article, I discussed with the limits and the problems of this application and argued that not the method-centered open general education reform movement but the content-centered mathematics education's own reform movement is necessary for the true mathematics education reform.

• 한국수학교육학회지시리즈A:수학교육
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• 제37권1호
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• pp.1-13
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• 1998

In this paper, we have represented the efficient way how to enumerate the optimal number-right scores to adjust the item difficulty and to improve item discrimination. To estimate the optimal number-right scores in two equivalent math-tests by linear score equating a measurement error model was applied to the true scores observed from a pair of equivalent math-tests assumed to measure same trait. The model specification for true scores which is represented by the bivariate model is a simple regression model to inference the optimal number-right scores and we assume again that the two simple regression lines of raw scores and true scores are independent each other in their error models. We enumerated the difference between mean value of $\chi$＊ and ${\mu}$$\_$$\chi$/ and the difference between the mean value of y＊and a＋b${\mu}$$\_$$\chi$/ by making an inference the estimates from 2 error variable regression model. Furthermore, so as to distinguish from the original score points, the estimated number-right scores y’$\^$*/ as the estimated regression values of true scores with the same coordinate were moved to center points that were composed of such difference values with result of such parallel score moving procedure as above mentioned. We got the asymptotically normal distribution in Figure 5 that was represented as the optimal distribution of the optimal number-right scores so that we could decide the optimal proportion of number-right score in each item. Also by assumption that equivalence of two tests is closely connected to unidimensionality of a student’s ability. we introduce new definition of trait score to evaluate such ability in each item. In this study there are much limitations in getting the real true scores and in analyzing data of the bivariate error model. However, even with these limitations we believe that this study indicates that the estimation of optimal number right scores by using this enumeration procedure could be easily achieved.