• Title/Summary/Keyword: Scientific application

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Changes in Scientific Knowledge During Young Children's Scientific Problem Solving with Magnetic and Nonmagnetic Objects (3, 4, 5세 유아의 과학적 문제해결과정을 통한 자성체와 비자성체에 대한 과학적 지식의 변화)

  • Kwon, Mikyung;Shin, Eunsoo
    • Korean Journal of Child Studies
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    • v.28 no.1
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    • pp.55-69
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    • 2007
  • This research examined age differences in the way 3-, 4-, 5-year-old children solve scientific problems involving magnetic and nonmagnetic objects. Their scientific process skills and scientific concepts were examined in 1) hypothesis setting, 2) hypothesis verification and 3) hypothesis application. Data was analyzed by one-way and two-way ANOVA and Scheffe. Children's scientific process skill presented differences by age in each phase of problem solving. That is, the scientific concept level demonstrated by 4-year-olds was higher than that of the 3-year-olds. That of the 5-year-olds was higher than the 4-year-olds. In addition, in all age groups, the children showed a higher level of understanding about magnetic and non-magnetic objects in the hypothesis application phase than in the hypothesis setting phase.

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The Effects of Science Lesson with the Application of Flipped Learning on Science Academic Achievement and Scientific Attitude (플립드 러닝(Flipped Learning)을 활용한 과학수업이 과학 학업성취도와 과학적 태도에 미치는 효과)

  • Lee, Byeong-hee;Lee, Hyeong-cheol
    • Journal of Korean Elementary Science Education
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    • v.35 no.1
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    • pp.78-88
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    • 2016
  • The purpose of this study was to examine the effects of science lesson with the application of Flipped Learning on science academic achievement and scientific attitude of students. The experimental group was composed of 50 students and the comparative group was composed of 50, both in $6^{th}$ grade. The two groups were statistically equivalent in their science academic achievement and scientific attitude when pre-tests were conducted. The experimental group received science instruction applied with Flipped Learning and the comparative group took typical science lesson according to a teacher's guide. The results of this study can be summarized as follows: First, the science lesson with the application of Flipped Learning was more significantly effective in improving students' science academic achievement than traditional science lesson. Second, the science lesson combined with Flipped Learning enhanced scientific attitudes of students with meaningful difference more than typical science lesson. Third, a survey research was conducted to the experimental group about their cognition on the lessons with the application of Flipped Learning. Many students had positive thoughts on this lesson and they thought the lesson was very interesting and understandable.

Analysis of Content Validity and Case Studies of Responses to Scientific Questions on Qualification Examination for High School Graduation (고졸검정고시 과학 문항 타당도와 문항 반응 사례 분석)

  • MOON, Sungchae
    • Journal of Fisheries and Marine Sciences Education
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    • v.29 no.1
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    • pp.64-79
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    • 2017
  • This study was to evaluate the suitability of scientific questions as qualification examination for high school graduation by content validity and item response with three examinees and two preliminary examinees. As a result, scientific questions were concentrated on two units of six units of total, and application appeared to be lacking problem area by 8% compared to understanding and application. Examinees and preliminary examinees chose correct answers most by hap or guess, sometimes by experience or common sense, and the least by scientific concept. In addition, they could chose correct answers by hap or guess because there were words that implied the correct answer in questions and answers, or because they could compared and/or analyzed questions and answers. With these results, two proposals were suggested as follows; (1) scientific questions of qualification examination for high school graduation should measure basic scientific literacy. (2) specific criteria for science literacy in qualification examination for high school graduation should be set.

The Analysis of Educational Objectives by Observation in the 3rd and 5th Grade Science Instruction (관찰에 의한 국민학교 3, 5학년 자연과 수업의 목표 분석)

  • Ko, Se-Hwan;Kim, Hyo-Nam
    • Journal of The Korean Association For Science Education
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    • v.11 no.1
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    • pp.51-57
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    • 1991
  • This study pursued to find out the degree to which educational objectives are pursued in the 3rd and 5th grade science instructional of an elementary school. Twenty science instruional hours are observed during two month from May to July, 1989. Klopfer's science educational objectives system is used as the tool of objective analysis. Questionnaires for the ideal proportions of the educational objectives are answered by the professors and elementary school teachers. The writers regarded those results as the ideal proportions of the educational objectives. Results from the analysis of the instruction are as follows : 1. Results from analysis of the instruction in the third grade are as follows : knowledge and comprehension (A. 0) objectives are found to be pursued. about 40%. scientific inquiry process(B. 0-E. 0) objectives, about 29%, application of scientific knowledge and methods(F. 0) objectives. about 10%, manual skills(G. 0) objectives, about 11%, scientific attitudes and interests(H. 0) objectives, about 10% and orientation(I. 0) objectives is not pursued. 2. Results from analysis of the instruction in the fifth grade are as follows: knowledge and comprehension(A. 0) objectives are found to be pursued. about 31%, scientific inquiry process (B. 0-E. 0) objectives. about 38%, application of scientific knowledge and methods (F. 0) objectives, about 13%, manual skills(G. 0) objectives, about 7%, scientific attitudes and interests(H. 0) objectives, about 10%. 3. Results from the ideal proportions are as follows : Knowledge and comprehension(A. 0) objectives, 20.5%, scientific inquiry process(B. 0-E. 0) objectives, 46.5%, application of scientific knowledge and methods(F. 0) objectives. 8%, manual skills(G. 0) objectives. 9.5%, scientific attitudes and interests (H. 0) objectives, 9% and orientation(I. 0) objectives, 6.5%. 4. "You ideality index" is 29 in the third grade and 23 in the fifth grade. Science instruction of the fifth grade can be interpreted to be nearer to the ideal instruction in terms of educational objectives.

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An Entity-Aspect Model for Statistical and Scientific Databases (통계(統計)/과학(科學) 데이타 베이스를 위한 개체(個體)-측면(側面) 모형(模型))

  • Yoo, Cheol-Jung
    • Proceedings of the KIEE Conference
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    • 1987.07b
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    • pp.1148-1152
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    • 1987
  • This paper analyzes the statistical and scientific entity-aspect model for statistical and scientific databases(SSDB's). The statistical and scientific entity-aspect model(SEAM) is defined an example of the application of the statistical and scientific entity-aspect model is represented. Finally, the statistical and scientific entity-aspect model as a design tool for SSDB is evaluated and the further research areas are suggested.

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A Multi-Application Controller for SAGE-enabled Tiled Display Wall in Wide-area Distributed Computing Environments

  • Fujiwara, Yuki;Date, Susumu;Ichikawa, Kohei;Takemura, Haruo
    • Journal of Information Processing Systems
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    • v.7 no.4
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    • pp.581-594
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    • 2011
  • Due to the recent advancement of networking and high-performance computing technologies, scientists can easily access large-scale data captured by scientific measurement devices through a network, and use huge computational power harnessed on the Internet for their analyses of scientific data. However, visualization technology, which plays a role of great importance for scientists to intuitively understand the analysis results of such scientific data, is not fully utilized so that it can seamlessly benefit from recent high-performance and networking technologies. One of such visualization technologies is SAGE (Scalable Adaptive Graphics Environment), which allows people to build an arbitrarily sized tiled display wall and is expected to be applied to scientific research. In this paper, we present a multi-application controller for SAGE, which we have developed, in the hope that it will help scientists efficiently perform scientific research requiring high-performance computing and visualization. The evaluation in this paper indicates that the efficiency of completing a comparison task among multiple data is increased by our system.

The High School Students' Problem Solving Patterns and Their Features in Scientific Inquiry (고등학생의 탐구 사고력 문제 해결 과정에 나타난 유형과 특징)

  • Kim, Ik-Gyun;Hwang, Yu-Jeong
    • Journal of The Korean Association For Science Education
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    • v.13 no.2
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    • pp.152-162
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    • 1993
  • The high school students' problem solving patterns and their features in scientific inquiry, especially on controlling variables and stating hypothesis have been investigated. The 8 problems on controlling variables and stating hypothesis were selected out of the scientific inquiry area in the experimental tryout of Aptitude Assessment for College Education, and had been used to find the patterns and their features. The results of findings are as follows: There were seven patterns in the process of solving problems. Five of seven patterns were found in right answers and four patterns in wrong answers. Two patterns were found in both right and wrong answers. Some students could solve the problems even though they did not understand the elements of the scientific inquiry, controlling variables and stating hypothesis. The false application of physics concepts, misunderstanding about the elements of the scientific inquiry and using unrelated experience and conjectures were the features of students' wrong answers. On the other hand, the right application of physics concepts, understanding and applying the elements right, infering answers from the tables and figures on statements of suggested problems were the features of right answers. The further studies on this kind may helpful to find the higher mental abilities related to scientific inquiry and to develop tools for testing students' scientific inquiry thinking skills.

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The Effect Development and Application of ASI Module using Science Notebooks in Open Inquiry Activity : Focused on Earth and Space (자유 탐구에서 과학 탐구 노트를 활용한 ASI 모듈 개발 및 적용 효과 -지구와 우주 영역을 중심으로-)

  • Lee, Sang-Gyun;Kim, Soon-Shik;Choe, Seong-Bong
    • Journal of Korean Elementary Science Education
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    • v.31 no.1
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    • pp.40-56
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    • 2012
  • The purpose of this study was to understand the teaching effects after conducting ASI module in the open inquiry activities of the elementary science class. in order to understand the effects of ASI(Authentic Scientific Inquiry) module application using science research notes in open inquiry activities to students' science research ability. The results of this study were as follow. First, the after test results were covariance-analyzed to be the effects to science process skills were statistically significant in 0.5 significance level. Second, in the covariance analysis of the after test of the study group and the comparative group, the effects to scientific creative problem solving skills were statistically significant in 0.5 significance level. Third, the covariance analysis of the after test in the effects of ASI module application using science notebooks to students' scientific attitude revealed that the two groups' average difference was statistically significant in 0.5 significance level. In conclusion, application of the ASI module using science notebooks had a positive effect on improvements of students' science process skills, science creative problem solving ability and scientific attitude. Therefore, the ASI module using science notebooks is hopefully to be provided as an effective instructive strategy in the open inquiry activities courses in school in the future.

The Development of the Virtual Reality System for Augmenting Scientific Inquiry Learning Environments (과학적 탐구학습을 지원하는 가상현실 시스템 개발에 관한 연구)

  • Im, Jae-Won;Kim, Seok-Hwan;Cho, Yong-Joo;Park, Kyoung-Shin
    • The KIPS Transactions:PartB
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    • v.15B no.2
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    • pp.95-102
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    • 2008
  • The interactive virtual reality technology has used in scientific inquiry learning since it can overcome the restriction of real world and it draws user's interest and foster active participation. However, prior works are mostly designed for a specific inquiry learning lesson and it is quite difficult to use them for constructing other inquiry learning environments. Hence, we developed the integrated virtual reality system, SASILE (System for Augmenting Scientific Inquiry Learning Environments), that helps ease the development of the scientific inquiry learning environment. In this paper, we first describe the related works on supporting VR scientific inquiry learning systems, followed by the SASILE system architecture and implementation. Then, we illustrate the use of this system to develop a Virtual Moyangsung application for teaching a scientific structure of Korean traditional house by exploring and observing the convection currents as well as a Mars Rover application for estimating the asteroid impacts on Mars by measuring rock properties. Finally, we will discuss the future research directions for this system.