• Title/Summary/Keyword: scientific question

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Investigation of elementary teachers' perspectives on science inquiry teaching (과학 탐구 지도에 대한 초등학교 교사들의 인식 조사)

  • Jeon, Kyungmoon
    • Journal of Science Education
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    • v.39 no.2
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    • pp.267-277
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    • 2015
  • This study explored elementary school teachers' perspectives on science inquiry teaching. First, an open-ended questionnaire was administered to elicit teachers' experiences of their approach to inquiry teaching. These self-reported approaches revealed three conceptions of teaching for inquiry learning in science: 'science process skills-centered' category focused on observing, classifying, measuring, and fair testing; 'generating scientific questions' category focused on students' question-generating; and 'illustrate concept and/or content' category focused on science content demonstration by making use of experimental procedures to obtain expected results. Second, teachers were asked to place 18 activity cards either close to or further from an 'inquiry-based science classroom' card. The relative distances from the activity card to the central classroom card were measured. The teachers perceived that students' activity of 'designing and implementing appropriate procedures' was the most important in supporting an inquiry-based science classroom. Understanding teachers' views has implications for both the enactment of inquiry teaching in the classroom as well as the uptake of new teaching behaviors during professional development.

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A Study on the Architectural Characteristics of Rice Mill in the Rural Village in the Chungbuk Area - Focused on Eomjeong Myeon Chungju City - (충북지역 농촌마을 정미소의 건축적 특성 - 충주시 엄정면을 중심으로 -)

  • Park, Heon-Choon;Kim, Seong-Keun;Han, Kyu-Young
    • Journal of the Korean Institute of Rural Architecture
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    • v.8 no.1
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    • pp.33-42
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    • 2006
  • The rice mill occurred from modernization process of the farming village. It comes to follow in intention of the architect and is not the position building. By the user of the building it comes to follow necessary and it is a position thing. The like this rice mill was the community center of the village. Also the material which is unique and form quality were land mark of the village. The object of research is the rice mill where it takes charge of a like this role. And the scope of research is 8 rice mills of Eomjeong Myeon Chungju City which is located in the northern Chungbuk area. The progress of research the documentary survey, actual measurement, question, field work it analyzed the construction quality which the rice mill keeps with base and it arranges. The results of study are follows; 1. conditions of location : The rice mill the entrance of the village, the crossroads system is formed most the place is doing in the place which well. 2. The inside composition of a space : In order to compose the work space and the store space efficiently the plane surface is doing a rectangular form. 3. Form of roof : The roof raises the efficient characteristic of the work where is not the design which is intended to be naturally formed from the space composition for. 4. Selection of material : Most it was a natural enemy and an utility, it selected the scientific material and it used.

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Analyses on Elementary Students' Cognitive Domain in Free Science Inquiry Activities Applying a Brain-Based Evolutionary Approach (뇌 기반 진화적 접근법을 적용한 초등학교 학생의 과학 자유탐구에서 인지적 영역 분석)

  • Baek, Ja-Yeon;Lim, Chae-Seong;Kim, Jae-Young
    • Journal of Korean Elementary Science Education
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    • v.33 no.4
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    • pp.773-783
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    • 2014
  • In National Curriculum of Science revised in 2007, the Free Inquiry was newly introduced to increase students' interest in science and to foster creativity by having students make their own question and find answer by themselves. The purpose of the study was to analyze characteristics, in cognitive domain, appeared in the processes of performing the Free Inquiry activities applying a brain-based evolutionary science teaching and learning principles. For this study, 106 fifth grade students participated, and they performed individually Free Inquiry activities. In order to characterize of the diversifying, estimating-evaluating-executing, and extending-applying activities in cognitive domain (C-DEF), the Free Inquiry diary constructed by the students, observations by a researcher, and interviews with the students were analyzed both quantitatively and qualitatively. The major results of this study were as follows: First, at C-D step, many students (71.5%) had difficulty in searching the meanings of their results and the contents of interpretations were at the level of simple description of their results. A few students (15.2%) derived interpretations based on causal relationships between specific variable and result. Also, the tendency that the numbers of interpretation about meaning of their results were increased as the scores of science attitude and achievement was appeared. Second, at C-E step, the students showed tendency of considering facts exactly explaining inquiry topic and being appliable to daily life rather than objectivity or accuracy of scientific knowledge. Third, at C-F step, there were three types of extension and application: simple repetition (8.2%), extension (64.0%), and upward application (17.6%) types. Based on these findings, implications for supporting appropriate interpretation, evaluation, and application of inquiry results are discussed.

Bolzano and the Evolution of the Concept of Infinity (무한 개념의 진화 : Bolzano를 중심으로)

  • Cheong, Kye-Seop
    • Journal for History of Mathematics
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    • v.21 no.3
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    • pp.31-52
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    • 2008
  • The concept of infinity, as with other scientific concepts, has a history of evolution. In the present work we intend to discuss the subject matter with regard to Bolzano since he is considered to be the first to accept the idea of actual infinity not just from a metaphysical perspective but from a mathematical one. Like modem platonists, Bolzano defended the infinite set itself regardless of the construction process; this is based on the principal of comprehension and unicity of denotation regarding all concepts. In addition, instead of considering as paradoxical the fact that a one-to-one correspondence existed between an infinite set and its parts, he regarded it in a positive way as a special characteristic. While the Greek era recognized the existence of only one infinity, Balzano acknowledged the existence of various types of infinity and formulated a logical definition for it. The question of infinity is a touchstone of constructive method which holds an increasingly important role in mathematics. The present study stops with just a brief reference to the subject matter and we will leave further in-depth investigation for later.

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A Study on the Improvement of the Military Studies Curriculum at the Civilian Universities (일반대학 군사학 교육과정 개선에 관한 연구)

  • Kim, Jong Ryul
    • Convergence Security Journal
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    • v.13 no.2
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    • pp.121-131
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    • 2013
  • It has been almost 10 years since the department of military studies was opened at the civilian universities. One of the important elements for the success of these new departments would be the curriculum. This paper tries to give an realistic answer to the question of curriculum. The factors influencing the design of curriculum of military studies are analyzed, such as the curricular of the military institutes that confer the B.S. in military studies, the domain of military studies and research areas, documentation classification of military studies and military engineering, scientific knowledge versus vocational capabilities in university education, relations between the B.S. courses and the master or doctorate courses, requirements asked by the Army, and moral education needed for the military officers. As a result of the analysis, the mandatory core courses should be total of 19, including 5 general courses and 14 major courses.

A Study of the Status and Improvements of the National Science Fairs (현행 전국과학전람회의 실태 및 개선방안에 관한 연구)

  • 최도성;한효의
    • Journal of Korean Elementary Science Education
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    • v.20 no.1
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    • pp.59-73
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    • 2001
  • The National Science Fairs has been held in every year for the promotion of science and technology and scientific civil life. The purpose of this study is to survey the current problems in National Science Fairs by making up a question and to improve them. The study makes up a questionnaires about the existing Science Fairs to the teachers who have submitted their works to the Science Fairs and suggest the ways of improvement. The result of questionnaires is that little availability of reference materials, difficulty of paying proper attention to regular classes because of frequent travels, and absence of experimental devices and experimental rooms are perceived as major obstacles in preparing for the exhibition. Respondents teacher also pointed out some problems with the current organization of the exhibition; non-voluntary selection process for the potential authors, separation of research content from regular teaching materials, unrealistically high standard, low participation rate of teachers, so many exhibited works, lack of professionalism in the screening process. The majority however, agreed that the exhibition event should be continuously done, after remedial measures have been taken about the problems. First, the side of science education is emphasized in a purpose of the science fairs to let activity related to science fair be closely connected with school education. Second, students have to be divided according to grade. Third, research level have to be set not too higher than regular instruction content. Fourth, hand book related to science fairs have to be manufactured and spread. Fifth, data of local science fair have to be arranged. Sixth, judging section have to be subdivided and people related to science education have to be included to a judge. Seventh, excellent works have to be support to participate in ISEF.

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Terminology Recognition System based on Machine Learning for Scientific Document Analysis (과학 기술 문헌 분석을 위한 기계학습 기반 범용 전문용어 인식 시스템)

  • Choi, Yun-Soo;Song, Sa-Kwang;Chun, Hong-Woo;Jeong, Chang-Hoo;Choi, Sung-Pil
    • The KIPS Transactions:PartD
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    • v.18D no.5
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    • pp.329-338
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    • 2011
  • Terminology recognition system which is a preceding research for text mining, information extraction, information retrieval, semantic web, and question-answering has been intensively studied in limited range of domains, especially in bio-medical domain. We propose a domain independent terminology recognition system based on machine learning method using dictionary, syntactic features, and Web search results, since the previous works revealed limitation on applying their approaches to general domain because their resources were domain specific. We achieved F-score 80.8 and 6.5% improvement after comparing the proposed approach with the related approach, C-value, which has been widely used and is based on local domain frequencies. In the second experiment with various combinations of unithood features, the method combined with NGD(Normalized Google Distance) showed the best performance of 81.8 on F-score. We applied three machine learning methods such as Logistic regression, C4.5, and SVMs, and got the best score from the decision tree method, C4.5.

Change of Teaching Method in Free Semester (자유학기에서의 수업방법의 변화)

  • Kil, Yangsook
    • The Journal of the Convergence on Culture Technology
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    • v.6 no.4
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    • pp.131-138
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    • 2020
  • This study was intended to explore the changes in teaching methods when freedom to choose curriculum, instruction, and evaluation methods is allowed and when 'free semesters' are free from entrance examination for high school. For this question, we analyzed free semester education plans of eight sample schools and interviewed 33 teachers and students respectively. The results were as follows. Firstly, all schools planned to use teaching methods for meaningful learning, although they are limited to those exemplified in guidelines for free semester. Secondarily, teaching methods adopted for free semester were characterized as activities enhancing student participation. Thirdly, teaching methods such as career exploration, scientific experimentation, cooperative learning, flipped learning, interdisciplinary learning were used only a couple of times in a semester. Changes in teaching methods were referred to enhance students' interest, confidence, self-regulation, creativity, problem-solving and cooperative learning.

Survey on Purchase and Fitting of Menswear Suits according to Styles for Consumers in Their 30s (30대 남성 소비자의 수트 스타일에 따른 구매 및 맞음새 조사)

  • Kim, Myoung-Ok;Suh, Mi-A
    • The Research Journal of the Costume Culture
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    • v.19 no.1
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    • pp.191-199
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    • 2011
  • The purpose of this study was designed to investigate the purchasing considerations given and wearing fit according to suit styles in male consumers in their 30s by conducting questionnarie research with 410 persons. The research intended to give menswear manufacturers the scientific data to improve consumers' satisfaction when menswear brands produce jackets. The summary and conclusions in this study are as follows: First, male consumers have moderate interest in fashion and recognize the impact of fashion on their professional lives. Also, male consumers were aware that recent menswear fashion trends are being changed to slim-fit. Second, by examining the suit inventory and the purchasing consideration according to the suit styles, male consumers in their 30s had between 2 to 4 suits, both in slim-fit and classic-fit, respectively. When consumers purchase a suit, the most important consideration factors are size and wearing fit in both slim-fit and classic-fit. The reason to purchase a slim fit suit is that it seems slim due to its fitted silhouettes, while in a classic-fit suit, it is required because of job nature. Third, the result indicates the circumferences causing the most uncomfortable were the shoulder, chest, the back, and upper arm. Also, they mentioned the chest and the abdominal section including the shoulder as the most uncomfortable circumference to the question on what to be improved in jacket. Therefore, the research suggests that the menswear manufacturer should consider different consumers' desires which require different criteria based on the suit styles.

A Study on the Experimental Animation and Movement Expression of Norman McLaren (노먼 맥라렌의 실험적 애니메이션과 움직임 표현 연구)

  • Hong, Il-Yang
    • The Journal of the Korea Contents Association
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    • v.19 no.4
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    • pp.458-465
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    • 2019
  • Experimental animation is an independent art animation and a visual art that is integrated with the spirit of experimentation. Norman McLaren pursues original beauty in each piece through scientific exploration of visual expression technology and experiment that transcends common sense with great creativity and sensitivity, and the aesthetic value of animation is very high as the master of experimental animation that has brought innovation of real image media today. Therefore, it is meaningful to analyze the experimental expressions of Norman McLaren, who expanded the field of experimental animation by challenging various techniques and carried out a ceaseless search for motion creation between each frame, and to study the expressions of movement he focused on. The most significant feature of his movement expression was analyzed as repetition of motion and repetition of metamorphosis. I hope that this derivation will be understood as experimental animation of experimental method which requires more specific type of inquiry than simple question about experimental method. Also, I hope that it will be meaningful as a preliminary study to deeply explore the possibility and direction of animation creation in university education.