• Title/Summary/Keyword: science exploration

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A Comparative Analysis of Science Philosophical Views and Instruction Strategies for Open-inquiry between Teachers of Science-gifted and Teachers of General Students (과학영재 지도교사와 일반교사의 과학철학적 관점과 자유탐구 지도방식 비교)

  • Choi, Hyum-Dong
    • Journal of the Korean Society of Earth Science Education
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    • v.8 no.1
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    • pp.45-55
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    • 2015
  • The purpose of this study was to compare the science philosophical views and instruction strategies for open-inquiry between teachers of science-gifted and teachers of general students. The subjects were 45 teachers of science-gifted and 45 teachers of general students. The major results of this study were as follows: First, there was no differences on the science philosophical views between teachers of science-gifted and teachers of general students by chi-square tests (p<.05). Second, there were no differences on how task assignments, how to guide exploration data, and how to write reports between teachers of science-gifted and teachers of general students (p<.05). But there was meaningful differences on how to proceed with exploration activities between teachers of science-gifted and teachers of general students (p<.05). It is implied that this the results of this investigation will help the focus of future efforts to promote more adequate the science philosophical views and instruction strategies for open-inquiry in teachers of science-gifted.

The Relationships between the Patterns of Elementary School Teachers' Explanations and the Patterns of Elementary School Students' Questions on Scientific Phenomena (과학 현상에 대한 초등학생들의 의문 유형과 초등교사들의 설명 유형과의 관계)

  • Shin, Dong-Hoon
    • Journal of Korean Elementary Science Education
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    • v.26 no.2
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    • pp.149-160
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    • 2007
  • This study was conducted to investigate the relationships between the patterns of elementary school teachers' explanations and the patterns of students' questions types on scientific phenomena. for the purposes of this study, we collected questions related to scientific phenomena from 255 $3rd{\sim}6th$ students in 2 elementary schools. Classifying the students' questions collected, 20 representative questions for each type were selected. Data regarding teachers' scientific explanation from 62 teachers of 3 elementary schools were also collected. The results of the analysis of the questions for each science field show that the students in the 3rd, 4th, and 5th grades have the most questions regarding biology, and those in the 6th grade have more questions regarding earth science. Regarding question types, object exploration questions and explican exploration questions formed the majority. Moreover, the higher the students' grades, a decrease in the number of conjectural questions and an increase in the number of causal questions were observed. As a result of the analysis of the teachers' explanation, the following explanation types could be discerned; conjecture, hypothesis, prediction, teleological explanation, information given to feed exploration questions, as well as verification and information supply fer verification purposes. There were 4 kinds of relationships between question types and explanation types. One was the explanation fitting to each question type, a second was the explanation with additional content than the question required, a third was where the explanation was inappropriate to the question, and a forth was where the teacher responded that they "don't know." This study, investigating the relationships between questioning as a scientific inquiry process and explanation, will help to promote discussion regarding science classes in elementary school.

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The Effects of Career Exploration Journal Writing with Reading on Career Maturity of High School Girls (독서기반 진로 탐색 보고서 쓰기가 여고생의 진로 성숙도에 미치는 효과)

  • Ha, Hye-Ran;Song, Gi-Ho
    • Journal of Korean Library and Information Science Society
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    • v.46 no.4
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    • pp.621-640
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    • 2015
  • The purpose of this study is to measure the significant change in the career maturity of high school female students influenced by career exploration report writing program based on reading activities. This program was operated for a total of six weeks, and it took 100 minutes for two sessions per week with 23 high school female students. According to pre-post test comparative analysis, 5 out of 8 sub-factors of career maturity showed significant change. The 5 Factors are planning, self understanding, information search and career exploration and preparation actions. Above all the factor of knowledge on desired job especially showed a very considerable effect. But 3 factors such as attitude for occupation, independence and rational decision making did not show a significant result. Based on these, authors proposed some improvement plans of the career exploration report writing program.

Effects of Culinary and Foodservice Major Selection Motive and Work Value on the Major Satisfaction, Career Search Efficacy and Career Exploration Behavior (조리외식 전공만족도, 진로탐색효율 및 진로탐색행동에 미치는 전공선택동기와 직업가치관 효과)

  • Kim, Nam-Geun;Kim, Jong-Hyo
    • Korean journal of food and cookery science
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    • v.32 no.6
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    • pp.754-761
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    • 2016
  • Purpose: This study was investigated the effects of culinary and foodservice major selection motive and work value on the major satisfaction, career search efficacy and career exploration behavior of college students. Methods: Survey comprising total 53 questions including 8 for major selection motive, 8 for work value, 6 for major satisfaction, 20 for career search efficacy, 5 for career exploration was distributed to 400 college students majoring in culinary or foodservice. Frequency analysis, factor analysis, correlation analysis, and multiple regression were conducted using SPSS Statistics (ver. 21.0). Organization of concept and analyses of the relationship between variables based on the advanced study and database is essential. Research model based on the theory and analysis of the extracted data was established; and subsequently, the proof relations between the variables were analysed. Results: The study results indicated that, only intrinsic work values among personal motivation and work values were significant. This is because personal motivation and intrinsic work values are related to subjects' aptitudes, interests, talents, and future professions when students choose their majors. Therefore, interest, abilities, achievement, high understanding, and satisfactory schooling are important factors. Conclusion: This study has newly expanded the research on career search behavior to include psychological factors and cognitive and attitudinal factors. We also determined competitive operations that enhance students' major satisfaction, career search efficiency, and career search behavior.

The Effect of Simulation-based Practice Education on Employability, Career Exploration Behavior and Decision-making Self-efficacy of the Nursing Students (시뮬레이션기반 실습교육이 간호대학생의 고용가능성, 진로탐색행동 및 진로결정 자기효능감에 미치는 효과)

  • Jeong, Mihyun;Seo, Yohan
    • Journal of the Korean Applied Science and Technology
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    • v.36 no.3
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    • pp.709-725
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    • 2019
  • This study aimed to determine the effects of simulation-based practice education on nursing students' employability, career exploration behavior and decision-making self-efficacy. A non-equivalent control group pre-posttest of quasi-experimental design was used. A total of 120 nursing students located in J provinces, 60 students for the experimental group and 60 students for the control group. Study participants were a third-year student at college of nursing student. The experimental group participated in the study for 6 weeks. The results showed that the simulation-based practice education significantly improved employability(t=-2.31, p=.023) and career exploration behavior(t=-3.05, p=.003) of nursing students. However, there was no significant difference in the decision-making self-efficacy(t=-.87, p=.387). In conclusion, simulation-based practice education should be strengthened because it is useful for education of nursing students.

Optimal Adaptive Multiband Spectrum Sensing in Cognitive Radio Networks

  • Yu, Long;Wu, Qihui;Wang, Jinlong
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.8 no.3
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    • pp.984-996
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    • 2014
  • In this paper, optimal sensing time allocation for adaptive multiband spectrum sensing-transmission procedure is investigated. The sensing procedure consists of an exploration phase and a detection phase. We first formulate an optimization problem to maximize the throughput by designing not only the overall sensing time, but also the sensing time for every stage in the exploration and detection phases, while keeping the miss detection probability for each channel under a pre-defined threshold. Then, we transform the initial non-convex optimization problem into a convex bilevel optimization problem to make it mathematically tractable. Simulation results show that the optimized sensing time setting in this paper can provide a significant performance gain over the previous studies.