• Communications of Mathematical Education
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• v.21 no.3
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• pp.467-482
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• 2007

In this paper, we surveyed the attitudes of engineering students in 6 universities in Chungcheong area to mathematics by 5-scale degrees and performed a comparative analysis of the results. The results revealed a number of meaningful points which should be applied to college mathematic education. On the basis of the results of the analysis, we made the following suggestions; 1) It is necessary to pay much attention to the students who have insufficient math ability 2) Special teaching methods are required for Freshman engineering students 3) Practical teaching strategies should be developed for engineering students that are based on the research on their math background 4) We should develop more materials in the area of mathematical concept image 5) More attention should be paid to the relation between math concepts and engineering concepts. Besides the above suggestions, we proposed that more research about students' math background and attitudes should be conducted for more efficient college math education.

• Journal of the Korean Data and Information Science Society
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• v.24 no.1
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• pp.13-22
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• 2013

Smartphone addiction has become more serious than internet addiction since people can download and run numerous applications with smartphones even without internet connection. However, smartphone addiction is not sufficiently dealt with in current studies. The S-scale method developed by Korea National Information Society Agency involves so many questions that respondents are likely to avoid the diagnosis itself. Moreover, since S-scale is determined by the total score of responded items without taking into account of demographic variables, it is difficult to get an accurate result. Therefore, in this paper, we have extracted important factors from all data, which affect smartphone addiction, including demographic variables. Then we classified the selected items with a neural network. The result of a comparative analysis with backpropagation learning algorithm and multiclass support vector machine shows that learning rate is slightly higher in multiclass SVM. Since multiclass SVM suggested in this paper is highly adaptable to rapid changes of data, we expect that it will lead to a more accurate self-diagnosis of smartphone addiction.

• Journal of The Korean Association For Science Education
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• v.19 no.3
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• pp.461-470
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• 1999

The purpose of this study was to investigate teachers' perception about 'Science Field Trip(SFT) to Korean historical sites'. Ninety-seven teachers were asked to reply the questionnaire about SFT to Korean historical sites. This questionnaire was divided into three parts: educational value, teaching method, and difficulty of management. Firstly, teachers indicated that SFT to Korean historical sites had much educational value in that it could give students chances to understand Korean culture, to acquire investigative process skills, to experience divergent investigation and cooperative learning, to raise integrated thinking skill concerning science and other subjects, and to learn contents related with science curriculum. It also had advantages of caring for students out of school and giving the information for future occupation. Secondly, teachers suggested the desirable teaching method: teachers' explanation about SFT to Korean historical sites with worksheets before it, students' group work during it, and the presentation and discussion after it. Finally, the most frequent answer in the difficulty of management was the lack of teaching materialsfor SFT to Korean historical sites.

• The Journal of the Korea Contents Association
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• v.12 no.3
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• pp.411-420
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• 2012

In Korea, the traces of Mongolian history and culture are often found in Korean life and customs. Under these perceptions, this study has attempted to develop the learning contents using the Mongolian historical and cultural heritages in Korea. For this, the perspective on Mongolia in Korean History and Social Studies textbooks and the exhibition of Mongolian cultural materials in a museum have been analyzed. In addition, this study has researched a plan to develop learning contents for exhibition and education using the Mongolian historical & cultural heritage and folklore materials in Korea and people's perspective on Mongolia in the ancient western maps as a way of understanding the historical and cultural heritage between Korea and Mongolia. In addition, a way of taking advantage of the Mongolian historical and cultural heritage in Korea from the view of world history has been proposed to share historical views and promote cultural exchanges between the two countries. Furthermore, the development of learning contents of the museum using the historical and cultural heritage between Korea and Mongolia could be grounds for humanistic studies from the view of understanding multiculture and characteristics of international culture.

• Annual Conference of KIPS
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• 2017.04a
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• pp.941-944
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• 2017

심층 학습에 기반을 둔 통계적 언어모형에서 가장 중요한 작업은 단어의 분산 표현(Distributed Representation)이다. 단어의 분산 표현은 단어 자체가 가지는 의미를 다차원 공간에서 벡터로 표현하는 것으로서, 워드 임베딩(word embedding)이라고도 한다. 워드 임베딩을 이용한 심층 학습 기반 통계적 언어모형은 전통적인 통계적 언어모형과 비교하여 성능이 우수한 것으로 알려져 있다. 그러나 워드 임베딩 역시 자료 부족분제에서 벗어날 수 없다. 특히 학습데이터에 나타나지 않은 단어(unknown word)를 처리하는 것이 중요하다. 본 논문에서는 고품질 한국어 워드 임베딩을 위하여 단어의 의미적 계층정보를 이용한 워드 임베딩 방법을 제안한다. 기존연구에서 제안한 워드 임베딩 방법을 그대로 활용하되, 학습 단계에서 목적함수가 입력 단어의 하위어, 동의어를 반영하여 계산될 수 있도록 수정함으로써 단어의 의미적 계층청보를 반영할 수 있다. 본 논문에서 제안한 워드 임베딩 방법을 통해 생성된 단어 벡터의 유추검사(analog reasoning) 결과, 기존 방법보다 5%가 증가한 47.90%를 달성할 수 있었다.

• The Mathematical Education
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• v.62 no.4
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• pp.531-549
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• 2023

Despite the significance of mathematics teacher guidebooks as a support for teacher learning, there are few studies that address how elementary mathematics teacher guidebooks support teacher learning. The purpose of this study was to analyze the educative features of elementary mathematics teacher guidebooks for grades 3 and 4. For this, six units from each of ten kinds of teacher guidebooks were analyzed in terms of seven dimensions of Teacher Learning Opportunities in Korean Mathematics Curriculum Materials (TLO-KMath). The results of this study showed that mathematics content knowledge for teaching was richly provided and well organized. Teacher guidebooks provided teacher knowledge to anticipate and understand student errors and misconceptions, but were not enough. Sample dialogues between a teacher and students were offered in the teacher guidebooks, making it easier for teachers to identify the overall lesson flow and key points of classroom discourse. Formative assessment was emphasized in the teacher guidebooks, including lesson-specific student responses and their concomitant feedback examples per main activity. Supplementary activities and worksheets were provided, but it lacked rationales for differentiated instruction in mathematics. Teacher knowledge of manipulative materials and technology use in mathematics was provided only in specific units and was generally insufficient. Teacher knowledge in building a mathematical community was mainly provided in terms of mathematical competency, mathematical classroom culture, and motivation. This paper finally presented implications for improving teacher guidebooks to actively support teacher learning.

• Journal of The Korean Association For Science Education
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• v.28 no.8
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• pp.901-921
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• 2008

The purpose of this study was to investigate elementary teachers' views on the barriers in implementing inquiry-based instruction in science education. For this, semi-structured in-depth interviews were performed with 22 elementary school teachers who have served for more than five years in the Gyeonggi province. The interview questions were developed through triangulation of Seidman's phase to achieve reliability in the interview data, then interview questions were modified and completed through an analytic induction method in pre-interviews. In-depth interviews were performed individually and all the interviews were recorded. The data of teachers' views on the barriers were categorized and analyzed into external and internal factors of teachers. The study found that the external factors referred by teachers included the following; the lack of a unit time, lack of materials and equipments, too many students in a class, problems in science curriculum management, difficulty in the assessment of students' inquiry activities, the students' learning, lack of opportunities for teaching inquiry activities, harmfulness of accidents, and so on. Internal factors included the following; lack of preparation for inquiry activities, lack of self-confidence, lack of patience, and so on. The various barriers presented and their causes were analyzed in detail, and possible efforts in activating inquiry activities in elementary science education were suggested.

• 대한공업교육학회지
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• v.37 no.2
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• pp.57-75
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• 2012

The purpose of this study was to survey and analyze the recognition and needs of elementary school teachers about STEAM education. Mail and E-mail surveys were conducted for 533 elementary school teachers for the purpose of the study. The following were found results of the study were as follow: First, although elementary school teachers understood positively the necessity of STEAM education, showed average levels of recognition on STEAM education. Second, the rate of the elementary school teachers who had experience in applying STEAM education was low. Third, elementary school teachers required to education closely related to real life, and interesting education according to the direction for STEAM education. Fourth, elementary school teachers asked for the integration centering activities related real life, followed by the integration focusing on thema related to real life, the integrating centering student's needs and interests, and the integration focusing on issues according to the appropriate integration methods for STEAM education. Fifth, elementary school teachers required creative design/problem solving ability, academic performance ability, and interpersonal relationship skills with regard to the ability to develop through STEAM education. Lastly, elementary school teachers demanded the development and distribution of STEAM education, teacher's recognition and attitudes towards STEAM education, teacher's training for STEAM education, the distribution of reference materials and etc in order to stimulate STEAM education.

• The Journal of the Korea Contents Association
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• v.21 no.1
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• pp.343-351
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• 2021

The purpose of this study was to examine kindergarten teachers' the difficulties and needs on early childhood value education. In order to provide basic data by grasping of teachers, a survey was conducted on 815 teachers of kindergartens in Gyeonggi-do. As a result, first, the difficulties in applying value education to teachers are lack of information on specific teaching methods. Second, what is required is connecting the 2019 revised Nuri curriculum and value education, teacher's will and parents' understanding and participation. The implications are that the discussion on the right character emphasized in the Nuri curriculum and the needs of teachers who wish to link early childhood value education into an unseparated context were identified.

• 한국정보교육학회:학술대회논문집
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• 2006.01a
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• pp.152-157
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• 2006

하드웨어와 정보통신기술의 급속한 발달에 힘입어 교수-학습환경은 점차로 멀티미디어화 되어가고 있으며, 시간과 공간을 초월하여 언제, 어디서나, 누구에게나 교수-학습 자료를 제공할 수 있는 방향으로 변화되어가고 있다. 교육용 소프트웨어는 이러한 변화 가운데 교육방법상의 획일성과 전근대성을 해결해 줄 대안으로 인식되면서 많은 관심 속에 개발되어왔다. 1997년 교육정보화계획 이후 정부에서는 정책적으로 소프트웨어 구입비를 학교에 지원하고, 매년 교육용 소프트웨어 개발을 확대하여 보급하고 있다. 하지만 개발되고 보급되는 교육용 소프트웨어의 양에 비해 활용되는 정도는 부족하다. 교육용 소프트웨어의 활용 실태 및 교사들이 수업에서 교육용 소프트웨어를 어떻게 활용하고 있는지 파악하여 많은 예산을 들여 보급한 교육용 소프트웨어가 사장되지 않고 교육 헌장에 올바르게 활용될 수 있게 하는 것이 중요하다. 이러한 측면에서 초등학교 교사들의 수업활동과 가장 밀접히 관련되어 있는 교육용 소프트웨어의 활용에 관련된 일반적인 실태와 수업에서 교육용 소프트웨어를 활용하는데 있어 교사들의 인식 및 그 문제점을 규명, 개선 방안을 모색하고자 한다.