• Title, Summary, Keyword: Experiment education

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Analysis and Suggestion on Experiment Education in Mechanical Engineering of Universities in USA (미국 대학 기계공학 실험교육 분석 및 제안)

  • Park, Chan-Il
    • Journal of Engineering Education Research
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    • v.15 no.2
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    • pp.46-51
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    • 2012
  • This work investigated experiment education in mechanical engineering of universities in USA. Through the investigation, characteristics of each university were analyzed. Finally, the study suggested new contents of experiment education, full-time professors and staffs for experiment, cooperation with design and experiment education, and incentive for the development of experiment education.

A Study of the Teaching Method for Statistics Education with Experiment (실험을 통한 통계교육의 수업방법 연구)

  • 김응환
    • The Mathematical Education
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    • v.40 no.2
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    • pp.345-350
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    • 2001
  • This study suggested a teaching method to improve intuitive understanding of the statistical basic concepts about the central limit theorem with experiment. It is very hard to understand about the concept of the central limit theorem in the school mathematics class. The result of this study experiment for the class of statistics education shows that the students and mathematics teachers were interesting at this experiment. They corrected their misunderstanding about the central limit theorem by discussion for the result of experiment with team members. I think that this study can help teachers to teach the students using the experiment method.

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Development of the Endocrine Disruptor Experiment in Teaching Program for Teenagers

  • Yeo, Min-Kyeong;Lim, Eun-Hee
    • Journal of Environmental Science International
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    • v.17 no.8
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    • pp.827-831
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    • 2008
  • We investigated the education process of an environmental experiment in middle and high school. The major objective was that students understand about biological toxicity of endocrine disruptor. We used bisphenol A in environmental experiment to educate them about the effects of endocrine disruptor. The test animal was zebrafish (Danio rerio, wild type) which is very easy to use in the school experiment class. We educated the high school students (n=25) in Suwon through this teaching program. Finally we analyzed the effect of research education between two groups, education students (test) and non-education students (control). This experiment showed there were some positive effects on environmental reorganization of students. They understood the affect of endocrine disruptors in fish and man. Specifically, understanding the importance of preservation of ecosystem increased in the test-education group.

A Comparative Analysis and Improvement of the Fractional Distillation Experiments in the Middle School Science Textbooks (중학교 과학 교과서 분별 증류 실험의 비교 분석 및 개선)

  • Ryu, Oh Hyun;Choi, Moon Young;Song, Ju Hyun;Kwon, Jung Geun;Paik, Seoung Hey;Park, Kuk Tae
    • Journal of the Korean Chemical Society
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    • v.45 no.5
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    • pp.481-490
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    • 2001
  • The purpose of this study was to find out the problems on the fractional distillation experiments in the middle school science textbooks based on the 6th curriculum and to suggest an efficient experiment method for the middle school students. The first step was the classification of the experiments in 8 science textbooks according to heating apparatus and liquid mixtures. The second step was doing each experiment 3 times followed by the experimental process in the textbooks. The third step was developing the alternative experiments for solving the problems found in the second step. The heating method used in the alternative experiments were direct heating, oil bath, and heating mantle. The results of the second step showed that the direct heating experiment of branched round flask was more close to the theoretical prediction than the experiment of water bath heating of branched test tube. Also the direct heating experiment of thermally insulated branched round flask was better than the result of the experiment which was not insulated. The results of the third step showed that the experiment using heating mantle regulated heating power by observing the temperature of distillate gave the closest result to the theoretical prediction. From the above results, it is concluded that the experiment using branched test-tube with water bath heating is not adequate for the fractional distillation and an alternative experiment using insulated branched round flask with heating mantle regulated heating power during experiment is recommended.

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Pattern of the University Students' Perception for Unexpected Results and Effect of Problem-Solving Experiments for Change of Perception

  • Lim, Hee-Young;Kang, Seong-Joo
    • Journal of The Korean Association For Science Education
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    • v.30 no.3
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    • pp.366-374
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    • 2010
  • The purpose of this study was grouping students' perception types on the unexpected results in experiments, and looking into how the problem-solving experiment affected the change of these perception types. In order to answer this, interview data were analyzed in terms of perception types, and through analysis of questionnaires carried out at the beginning and the end of the semester, the change of perception types was researched. As a result, perception types of students divided into 'the difference between theory and practice,' 'inexperience of experiment skill,' and 'No reading between lines in manual.' After performing the problem-solving experiment for one semester, the perception of 'the difference between theory and practice' declined, and the desire for 'reading between lines' increased, so the problem-solving experiment influenced on the change of perception positively.

A Study on the Analysis and the Improvement of Land and Sea Breeze Model Experiment suggested to 2009 Revised Elementary Science Curriculum (2009 개정 교육과정 초등과학에서 제시된 해륙풍 모형실험 분석 및 개선 방안)

  • Kang, Houn Tae;Lee, Gyuho;Noh, Suk Goo
    • Journal of Korean Elementary Science Education
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    • v.36 no.1
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    • pp.1-15
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    • 2017
  • The purpose of this study is to analyze the problems of land and sea breeze model experiment that has presented in $5^{th}$ grade curriculum in chapter "Weather and our lives" and makes better model simulation so that learners can have better and more effective way to study it. To survey the opinions from dedicated teachers about land and sea breeze model experiment, we produced the survey through interview with science exclusive teacher from M elementary school. An elementary science education expert, 3 men of science EdD modified and complemented survey and started Delphi survey to 12 science teachers who have career teaching more than 3 years. The problems found in this survey were 'one heat bulb, short heating time, small temperature difference of water and sand, lack of class time, empty space between sand and water, back of transparent boxes, little amount of scent and the location of the it' etc. But the most of all, it is hard to see the successful result of the experiment. Based on these kinds of investigations, and lots of trial and error, redesigned the new model experiment that has the most similarity to the real one and high probability of success. According to this, it was able to see the smoke forms horizontal movement along the sand and the smoke goes in one circulation cycle. through this experiment, we made a conclusion that although those scientific experiments in textbook were developed through lots of considerations of expert, to consider the aspect of consumer, it needs to reach the educational agreement about simulation experiment so that It can lead to successful experiment and high quality education.

Teachers' Cognitions about the Primary Science Textbooks(Experiment and Observation) and It's Improvement in Science Classes (과학수업에서 실험관찰 교과서에 대한 교사들의 인식과 활용 방안)

  • Kwon, Chi-Soon;Jung, Eun-Suk
    • Journal of the Korean Society of Earth Science Education
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    • v.4 no.1
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    • pp.12-19
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    • 2011
  • This study aimed to analyze the teachers' cognitions about the primary science textbooks(experiment and observation) used in elementary schools. This study surveyed 211 teachers in Seoul and Gyeonggi province. The data were statistically analyzed by SPSS WIN 10.0. The results of this study are as follows : Most of the teachers showed positive opinions on the directions of the compilation of experiment and observation textbook. Teachers used experiment and observation textbook as summary notes, experiment reports and evaluating methods. The experiment and observation textbooks should be compiled and reorganized in order as follows : Lesson introduction, inquiry activities, and intensive and supplementary activities which are followed by space of description in experiment and observation textbook.

A Study on the Improvement in Experiment Training Program to Increase Science Teachers' Ability for Instructing Experiment Class (과학교사의 실험수업 지도능력 향상을 위한 실험연수프로그램 개선에 관한 연구)

  • Kim, Soon-Shik;Lee, Young-Seob;Lee, Sang-Gyun
    • Journal of the Korean Society of Earth Science Education
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    • v.4 no.3
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    • pp.231-241
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    • 2011
  • The purpose of this study lies in finding out a betterment of ongoing experimental training program in science for the secondary science teachers to increase their training ability more effectively. For this, from 2010 July to September, a preliminary study on secondary science experiment training, questionnaire on the satisfaction of 128 secondary teachers in U metropolitan city with the training program were carried out which were contributive to the preparation of a better plan for the training program to be helpful for the teachers at schools. Following are the study results. First, the class theme should be selected by the teachers who participate in the experiment for the year to raise their training ability for experiment class. Second, the direct activity of the teachers' joining in experiment training for the development of experiment training module, and the demonstration with the developed module-used experiment class need to be included to the program Third, the assessment for the demonstration of experiment attitude, the development process of experiment training module, would be more advisable compared with that for written examination for the teachers joined in the experiment training to concentrate more on the experimental activities and to get richer experiment experience As this study results show, the theme selection, class method and assessment method involved in ongoing experiment training need for betterment for the science teachers to apply it at schools and this improved experiment training program proposed by this study is suitable for that under a condition it has to be modified and supplemented to the distinct features of every city and province.

Remote Experiments for Control Education

  • Kwon, Bo-Kyu
    • 제어로봇시스템학회:학술대회논문집
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    • pp.2192-2197
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    • 2003
  • This paper suggests remote experiments using the internet for the control education. The remote experiment is composed of equipment server computers, networks accessible to internet, and real plants such as inverted pendulums, crane systems and microcontrollers. Additionally, it requires a server program that has I/O functions with plants and calculate the control, an interface program bridging between web and the server program, and the home page including the detail explanation for the usage. For effective educations, how to perform experiments and how to combine the experiment with lectures will be discussed. The simple experiments by entering a few control parameters and the complex experiments by designing overall controls, will be explained. Technologies related with the remote experiment and other possible remote experiment will be introduced. It is demonstrated that the remote experiment will be very useful, particular for control education where students have difficulties in performing the experiments for lack of experimental equipments.

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Investigating Elementary School Teachers' Internal Factors on Science Experiment Activity (초등과학 수업에서 실험 활동에 대한 교사들의 내적 요인 조사)

  • Lim, Jae-Keun;Lee, So-Ree;Yang, Il-Ho;Lee, Yun-Kyoung
    • Journal of Korean Elementary Science Education
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    • v.29 no.1
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    • pp.93-101
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    • 2010
  • The purpose of this study was to investigate the internal factors whether teachers execute experiments at the science classes in the elementary school. Semi-structured in-depth interviews were performed with 9 elementary school teachers who have served for more than three years. In-depth interviews were performed individually and all the interviews were recorded. Data sources were analyzed by grounded theory. The results were as follows: The internal factors that they did experiments at the science classes were science teaching faiths in experiment, self confidence in experiment, interest in science. and the internal factors that they did not experiment at the science classes were lack of science content knowledge, lack of science education knowledge, memory of failure at experiment, and so on. The investigation results imply inquiry activities should be more strengthened in elementary teacher education program and pre-service teacher curriculum. And it needs to give a materials of receiving information and guidance detailed about the experiments.

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