• Title/Summary/Keyword: improvement of science teaching

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The Effects of Educational Contents Authoring in a Project-Based Learning using NetLogo for Pre-service Teachers' Creativity (PBL 기반의 NetLogo를 이용한 교육용 콘텐츠 저작이 예비중등교사의 창의성에 미치는 효과)

  • Kim, Jin-Young;Park, Hong-Joon;Jun, Young-Cook
    • Journal of Engineering Education Research
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    • v.14 no.4
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    • pp.29-38
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    • 2011
  • The objective of this study is the analysis of the effects of educational contents authoring in a PBL using NetLogo Pre-service teachers' creativity. With utilization of the analysis, we attempted to draw implications on the factors considered in instructional design. To compare their creativity before and after class, we have done pre-service teachers test for each Pre- and Post- TTCT and LCT. Based on the analysis, as a result, there has been a significant improvement in their creativity, most especially in the 'fluency' subcategory.

Effect of Team-based Learning on Anatomy Subject for Biological Nursing Science Education of Nursing students (기초간호과학 해부학 교육에서의 팀기반 학습 효과)

  • Lim, So-Hee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.10
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    • pp.7098-7108
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    • 2015
  • This sturdy examined the effectiveness of Team-Based Learning(TBL) program according to learning attitude, learning motivation and self-directed learning of nursing students learning the anatomy. A 12week TBL program which they were made small group as 6-7 students aimed at anatomy aspects was given 145 freshmen. A triangulation that quantitative Research used paired t-test, Pearson Correlation Coefficient by SPSS WIN 18.0 and qualitative research was conducted content analysis. Through this subject, significant improvement was found in learning motivation(t=-2.97, p<.003) and self-directed learning(t=-2.40, p<.018). There was a significant positive correlation. TBL is useful teaching and learning method on nursing students. We suggest that it is needed to measure the educational effects of TBL against other subjects.

Analysis of the Characteristics of National Assessment of Educational Achievement (NAEA) Items for Science Subject through the use of Option Response Rate Distribution Curve (답지 반응률 분포 곡선을 통한 국가수준 학업성취도 과학 평가 문항 특성 분석)

  • Kim, Hyun-Kyung;Lee, In-Ho;Lee, Bongwoo;Lee, Kiyoung;Sim, Jaeho
    • Journal of The Korean Association For Science Education
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    • v.35 no.1
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    • pp.121-130
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    • 2015
  • Identifying students' achievement level and reflecting it on educational policy making or instructional improvement by analyzing the results of nationwide standardized assessment is an integral part of accountability in education. On the basis of this premise, we analyzed the characteristics of National Assessment of Educational Achievement (NAEA) items for middle school science subject conducted from 2010 to 2013 by using the option response rate distribution curve, the fittest graph estimated from the response rate of correct/incorrect options by achievement score. Furthermore, we classified the type of option response rate curve in terms of correct and incorrect options. Results of the analysis of option response curve showed that five types of correct option response curve (S-shaped, J-shaped, straight-shaped, F-shaped, and step-shaped) and 4 types of incorrect option response curve (down-slope, flat, mound, and up-slope) were identified. The most common type of items was the combination of S-shaped correct option response curve and down-slope incorrect option response curve, which are considered as appropriate items to discriminate the students according to achievement level. Moreover, correct option response was found to be correlated with incorrect option response. Based on the results, we also discussed some implications on teaching-learning method and classroom assessment in science education.

Analysis of the Improvement and Effectiveness of the Experiment to Find Out That Gas Occupies Space (기체가 공간을 차지하고 있음을 알아보는 실험의 개선 방안 및 효과 분석)

  • Chae, Heein
    • Journal of Korean Elementary Science Education
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    • v.43 no.2
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    • pp.269-283
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    • 2024
  • This study compared the characteristics of an experiment f or determining whether gas occupies space presented in elementary school science textbooks to examine the validity of the experiment, identify and improve problems in its presentation, and verify its effectiveness. This study interviewed third-year elementary school teachers who had experience teaching this experiment to students. Based on teachers' opinions and observations, this study identified issues with the current experiment, developed an improved experiment, and determined its effectiveness. Through this analysis, three key findings emerged. First, the study found that the original experiment on gases was presented in the same or highly similar manner in 5 of 7 textbooks (71.4%). Thus, while various textbooks have been developed with the aim of promoting diversity and creativity in scientific literature, most experiments presented in these books are identical. Second, the existing experiment was not suitable for its target audience (third-year elementary school students) and was difficult to observe directly. The interviewed teachers also deemed the validity of the experiment to be considerably low. Finally, the original experiment was improved; this improved version was determined to be highly valid, showing a statistically significant difference compared with the original experiment. The improved experiment was effective for students as it involved activities suitable for their intellectual level and was directly observable through the senses. Thus, the study analyzed and improved an existing science experiment f or elementary students, providing insights into the 2022 revised science authorized textbooks and implications for future textbook development.

Actual Status of Task Performance and Need for System Improvement for Nutrition Teachers (영양교사의 교직 수행실태 및 제도개선에 대한 요구도)

  • You, Ji Eun;Lee, Young Eun;Park, Eun Hye
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.45 no.3
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    • pp.420-436
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    • 2016
  • The purpose of this study was to identify the status of task performance and working conditions for nutrition teachers in order to determine new ways to improve the current nutrition system and increase job satisfaction among teachers. From the 14th of July to the 26th of September 2014, email questionnaires were distributed to and collected from 311 nutrition teachers nationwide, including teachers at elementary, middle, and high schools. The results are as follows. First, over 90% of nutrition teachers indicated that their work was demanding. In particular, 63.5% of nutrition teachers at high schools worked more than 40 hours of overtime per month. Second, 73% of nutrition teachers provided nutrition education, but the percentage significantly decreased at upper levels of school. Nutrition teachers had difficulties teaching due to the absence of standard teaching materials and a lack of time due to excessive work. Teachers also wanted 30 hours of job training once per year during their vacation organized by the regional Department of Education. Third, around half of the nutrition teachers considered that promotion and transfer professions are necessary for systematic foodservice and education. An additional allowance was demanded by nutrition teachers at schools that serve two or three meals per day. Considering the results, alleviating the workload of nutrition teachers and more time preparing nutrition classes for student are required. Fair evaluation of job performance that considers work conditions of nutrition teachers should be considered.

Development and Application of the Explicit and Reflective Learning Strategy for Enhancement of the Elementary School Students' Basic Inquiry Skills -Based on Observation and Classification- (초등학생의 과학탐구기능 향상을 위한 명시적이고 반성적인 교수.학습전략 개발 및 적용 -관찰과 분류를 중심으로-)

  • Lee, Hye-Won;Min, Byeong-Mee;Son, Yeon-A
    • Journal of The Korean Association For Science Education
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    • v.32 no.1
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    • pp.95-112
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    • 2012
  • The research evaluated the effects of the improvements in scientific inquiry for elementary school students and focused on the development and application of the explicit and reflective learning strategy through observation and classification. The explicit and reflective learning strategy was modified and completed with the review of the experts after the development of the draft based on the theoretical approach. The students were evaluated for their academic achievements in scientific inquiry skills before and after taking the course. The results were as follows: First, the steps of the developed learning strategy (1) to motivate, (2) to explore reflectively, (3) to guide explicitly, (4) to inquire explicitly, and (5) to verify reflectively were set to reflect the verification. Second, the results of applying the developed model to the lessons based on the quantitative analysis was effective for observation and classification skills in the quest for improved performance of the whole (the sum of observation and classification, inquiry skills) and the observed features, but there was no effect on classification. Also, the lessons applied the developed teaching strategy and showed effectiveness in improving academic achievement. Particularly in analyzing the relationship between the academic achievement and exploration capabilities, in order to improve academic achievement, the importance of improving inquiry skills was found. Third, the qualitative analysis of teaching and learning strategy developed by applying the lessons of this teacher guide and small group activities through the explicit and reflective observation and classification of the student learning activities showed the significant improvement of ability of the scientific inquiry skills. In addition to the improvement in the abilities of the classification showed after the formation of the most basic observation skills of the scientific inquiry.

A Study on Curriculum Improvement of the Korea Army Nursing Academy (국군간호사관학교 교육과정 개선을 위한 기초 연구)

  • 고자경
    • Journal of Korean Academy of Nursing
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    • v.13 no.2
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    • pp.22-43
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    • 1983
  • 1. Need for and Purpose of the Study. There is an increasing demand for curriculum improvement of the Korean Army Nursing Academy (KANA), since it was upgraded into 4-year institution of higher learning from 3-year one. In particular, it is strongly advocated that the KANA needs the outside expertise for its curriculum improvement-namely not only from the internal military view of points but also from the viewpoints of professional educational society, In line with such a necessity for the study, this study was aimed at 1) analyzing the current actual practices of KANA'S curriculum, 2) investigating the desired practices of KANA'S curriculum, and 3) identifying the discrepancy between the actual and desired practices of curriculum. 2. Problems for the Study This study had 4 problems to be answeared as follows: 1) What are the actual curriculum practices of KANA? 2) What are the desired curriculum practices of KANA? 3) How are the extents of perception of actual and desired curriculum different in four groups (student, faculty & administrator, nurse, and medical doctor in militay hospital) ? 4) What are the restraining forces that impede the change from actual to desired curriculum practices? 5) What are the relationships of curriculum component,』 in actual and desired curriculum practices? 3. Methods and Procedures This study was conducted by means of document analysis in addition to literature review and by means of needs assessment questionnaire which was developed by the researcher. The questionnaire included 62 statments with 7 questions for demographic data collection. The needs assessment questionnaire was managed to a total of 243 subjects (100 students, 46 faculty & administrators, 55 nurses, and 42 medical doctors), The collected data were treated using SPSS computer system so as to calculate mean scores, standard deviations, and correlation coefficients. The significance test was made through t-test and one-way ANOVA. The statistical significance level was set at both .05 and .01 level. 4. Major findings The major findings in this study are as follows: 1) The score of desired practices was significantly greater than that of actual practices, representing a strong need for curriculum betterment. 2) There were significant differences in the perceptions of actual practices as well as desired practices among four groups (student, faculty & administrater, nurse, and medical doctor). 3) The most frequently selected restraining forces were army's inherent character, economical limitation, and educational expertise limitations. 4) Such variables as sex, position attachment to the KANA and grade made a statistically significant effect on the perception of desired curriculum practice, while the variables like marrige, position, and military class made it on the perception of actual curriculum practice. 5) The coefficients among the curriculum components were lower in perception of the actual curriculum practices than those in the desired practices. 5. Conclusions The conclusions based on the major findings of this study are as follows: 1) The current curriculum development procedure of the KANA is not consistent with the theoretical frame of systematic development sarategy of curriculum. 2) There are wide conflicts among the groups who are supposed to participate in curriculnm development, concerning the actual and desired practices of KANN'S curriculum. 3) A great deal of need for curriculum improvement for the KANA is clearly felt, and in particular, in the process of teaching and learning. 4) Each component of curriculum is not intergrated into a whole development procedure, being segregated each other. 5) For better curriculum improvement, such restraining forces as financial and professional limitations should be eliminated. 6. Recommendations 1) For Further Research a. There is a need to replicate this study after in-depth statistical analysis of each item of need assessment questionnaire, and with more representative subjects. b. A study should be conducted which. has its focus on the analysis of restraining forces for the change from actual to desired curriculum practices of the KANA. 2) For KANA'S Curriculum Improvement a. There is a need to promote the professional expertise of the participants in curriculum development and the communication among them. b. It is desirable to establish an institution or section of administration, which is soley in charge of curriculum development. c. To better develop KANA's curriculum not only faculty and administrators but also students should be encouraged to participate in development process, while the military medical doctors' participation should be carefully considered.

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An Analysis of the Competency Exam for College Education : Area of Science Inguiry (대학수학능력시험 실험 평가 문제의 분석 : 과학 탐구를 중심으로)

  • Kim, Eun-Jin;Kim, Young-Soo
    • Journal of The Korean Association For Science Education
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    • v.12 no.1
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    • pp.75-92
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    • 1992
  • The purpose of this study was to point out the problems of the competency exam for college education, a new college entrance exam, and to suggest the improvement ideas for it For this purpose, the test items of science inquiry were taken from the first, the second and the third pilot studies of the competency exam for college education which National Institute of Educational Evaluation had done. These tests were administered to 1,223 students of the general high school(422 for the 1st 400 for the 2nd, and 401 for the 3rd test). Also, those students' and the high school science teacher's opinions about the tests and the new college entrance exam were surveyed. The evaluation objectives of those test items were analyzed and the test item analyses were done. The results were as follows; (1) The evaluation objective analysis showed that most of the test The purpose of this study was to point out the problems of the competency exam for college education, a new college entrance exam, and to suggest the improvement ideas for it For this purpose, the test items of science inquiry were taken from the first, the second and the third pilot studies of the competency exam for college education which National Institute of Educational Evaluation had done. These tests were administered to 1,223 students of the general high school(422 for the 1st, 400 for the 2nd, and 401 for the 3rd test). Also, those students' and the high school science teacher's opinions about the tests and the new college entrance exam were surveyed. The evaluation objectives of those test items were analyzed and the test item analyses were done. The results were as follows; (1) The evaluation objective analysis showed that most of the test items were constructed based on the evaluation framework which was composed of scientific inquiry thinking ability, science concept, and scientific inquiry context dimensions. But, those items were unevenly distributed into a few areas of the evaluation framework. (2) The boys had higher mean scores than the girls in all of the tests, but these differences were not statistically significant. The natural science course students had significantly higher mean than the humanities course students in all of the test:(1st, F=12.643, p=0.0004 ; 2nd, F=45.757, p=0.0001 ; 3rd, F=36.162, p=0.0001). A significant interaction of sex and course was found in only 1st test( F=11.352. p=0.0008). (3) Most students answered the test was difficult and they needed more time to finish it Also, they added they had to study in a different way from the traditional one in order to prepare the new college entrance exam. Science teachers answered that those evaluation objectives of the tests corresponded well with the educational objectives of high school science and that the tests were suitable as measuring instruments of the scientific thinking abilities. But they pointed out it would be very difficult for them to teach students for preparing the exam under the exsting educational conditions. To carry out successfully the competency exam for college education, the following improvements were suggested. (1) Good evaluation methodology should be developed. (2) In-service science teacher training models on evaluation should be put in force. (3) Effective teaching models and strategies should be developed.(4) The high school science curriculum should be revised.

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Comparison of Leukotriene Receptor Antagonist and Theophylline in Addition to Inhaled Corticosteroid in Adult Asthma: A Meta-Analysis

  • Fang, Huijuan;Wang, Jianmiao;Jin, Di;Cao, Yong;Xu, Yongjian;Xiong, Weining
    • Biomolecules & Therapeutics
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    • v.19 no.3
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    • pp.296-301
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    • 2011
  • This meta-analysis was performed to evaluate the difference of the therapeutic effi cacy and adverse effects of leukotriene receptor antagonist and theophylline added to inhaled corticosteroids in adult asthma. Databases were searched for studies published through Nov, 2010. Randomized-controlled trials containing inhaled corticosteroids plus leukotriene receptor antagonist and inhaled corticosteroids plus sustained-release theophylline for asthma therapy were selected. For each report, data were extracted to the outcomes analyzed: mean change in morning peak expiratory flow, mean change in evening peak expiratory flow, mean change in morning forced expiratory volume in 1 sec, mean change in daily short bete2-agonist use, asthma exacerbation and adverse effects. Four assessable trials including 182 asthmatic patients were identified. Inhaled corticosteroids plus leukotriene receptor antagonist was superior to inhaled corticosteroids plus theophylline therapy in improving morning peak expiratory flow in asthmatics (mean difference 19.08 [95% confidence interval 13.37-23.79] l/min, p<0.001) and morning forced expiratory volume in 1 sec in asthmatics (mean difference 0.09 [95% confidence interval 0.03-0.14] liter, p=0.001). In evening peak expiratory flow, daily short bete2-agonist use, asthma exacerbation and adverse effects, there was no significant difference between these two therapies (All p>0.05). Our meta-analysis showed that the combination of inhaled corticosteroids plus leukotriene receptor antagonist resulted in more improvement in both peak expiratory flow and forced expiratory volume in 1 sec in the morning than inhaled corticosteroids plus sustained-release theophylline in adult asthmatics. Further trials are necessary to evaluate the dominant effects of the former combination.

The research regarding the WBI application for a discretionary activity improvement (재량활동 개선을 위한 WBI 활용에 관한 연구)

  • Wi Seon-Jung;Jung Kyu-Cheol;Lee Jin-Kwan;Jang Hae-Suk;Park Ki-Hong
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2006.05a
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    • pp.668-671
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    • 2006
  • High speed internet and web was rapid grow up. There was much influence our society and education field. The growth which the superhigh speed internet is quick leads in the education which is the possibility of confront in information society the educational reform it propels. It is included in the 7th curriculum which emphasizes the ability cultivation it will can dispose in the information society and information education and education information it dos the many enterprise from national dimension. But with the clear vision which is accurate against information education the education contents against hereupon is not presented from the elementary school not to be, the computer education is become accomplished at one part of discretionary activity and the level star education of the resonable information education relation teaching materials and the elementary students does not become accomplished net to be and well information education which becomes does not become accomplished is the actual condition. This research which it use teach - studying of home page base and the student studies self lead and oneself it provides the chance it will be able to evaluate the result regarding studying and also it will provide the paradigm which is the possibility of doing level star studying, it does.

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