• Title/Summary/Keyword: Teaching Science

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Design and Implementation of Simulation Program for CPU Scheduling Operating Systems (CPU 스케줄링을 학습하는 운영체제 시뮬레이션 프로그램의 설계 및 구현)

  • Jeong, Seong-Kyun;Lee, Samuel Sang-Kon
    • Journal of Korea Multimedia Society
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    • v.14 no.3
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    • pp.449-461
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    • 2011
  • In the field of computer science, operating system concept is taught in university, but we now teach it in the middle and/or high school. Computer is also taught not only in college but also in middle and high school. If we look up the education of computer that is trained in school, basic principles or core techniques of computer science is educated only with its theory. If the theoretical education of computer science is just trained, sometimes students are not interested in it because of lack of shortage of mass media. Therefore, we could say that it is important that the computer education features a diverse range of media, including prints, paintings, sculpture, digital photographs, mixed media, and a simulation program. For all this reason, we design and implement a program for simulation with computer operating systems especially, CPU scheduling. There are many CPU scheduling algorithms we suggest to make students understand scheduling with some different examples in practical use. In this paper, we practically propose a new approach to be used with a study tool to make a motivation for students. We design a simulation program for teaching computer operation systems to show CPU scheduling and we implement a program to make use of comparison of FCFS, SJFS, PS, and RR scheduling algorithms. With our simulation program we present a comparative analysis between scheduling algorithms could be possible.

Comparision of Verbs Used in the Learning Objectives in Physics Textbooks of Singapore, USA, & Korea (한국, 미국, 싱가포르 물리 교과서의 학습목표에 사용된 서술어 비교)

  • Tae, Jean-Soon;Yun, Eunjeong;Park, Yunebae
    • Journal of The Korean Association For Science Education
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    • v.35 no.3
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    • pp.375-382
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    • 2015
  • Textbooks corresponding to curriculum goals are necessary because they are specific products of curriculum and are the most important materials for teaching, learning, and evaluation. In particular, learning objectives written in textbooks should be clearly described because they play a role in promoting learning by showing learning goals to learners clearly. This study analyzed the characteristics of verbs used as predicate of learning objectives written in high school physics I and II textbooks of Korea and compared them with physics textbooks of Singapore and the United States. Results show that Korean textbooks have less kinds of verbs compared to those of Singapore and the United States, and the verbs with abstract and comprehensive meaning such as 'understand' and 'know' were mainly used. In American textbooks, it was noticeable that no verbs have been used by more than 10%. When classifying the learning objectives in the two Korean textbooks, cognitive domain accounted for 98 to 99%, and inquiry domain accounted for only 1% to 2%. With regard to physics textbooks of the United States, inquiry domain accounted for a large proportion of domains in learning objectives compared with physics textbooks of Korea and Singapore. Physics textbooks of Singapore were similar to those of Korea in that learning objectives were biased toward cognitive domain, but differed from those of Korea in that learning objectives were specifically described using action verbs.

Analyzing the Pre-Service Science Teacher Community's Reflection on their Instructions from the Cultural Historical Activity Theoretical Perspective: A Case of Three Years of Biological Laboratory Class (문화역사 활동이론 관점에서 예비과학교사 공동체의 수업에 대한 반성 분석 - 3년간의 생물 실험교실 프로그램 운영 사례)

  • Shim, Hyeon-Pyo;Ryu, Kum-Bok;Jeon, Sang-Hak;Hwang, Seyoung
    • Journal of The Korean Association For Science Education
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    • v.35 no.3
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    • pp.523-536
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    • 2015
  • In this study, we analyzed the co-reflection of pre-service teacher community in three years of post-class discussions (PCD) on the basis of cultural historical activity theory in the case of an biological laboratory class program. We figured out the sociocultural elements of co-reflection of community using activity system suggested by $Engestr{\ddot{o}}m$. We also analyzed the aspect of reflection in terms of both 'the diversity of reflection subjects' and 'the practicality of reflection.' Finally, limitations of co-reflection were sought in a process of continuos circulation of reflection and practice. The results show that the sociocultural factors of 3-year-PCD changed, and in these changes, 'regular PCD,' 'introduction of tools for facilitating reflection,' 'transition of the subject in PCD from researcher to pre-service teachers' are remarkable. And in these process, co-reflection made positive progress since the content of reflection became diverse and practical. However, in some subjects such as 'managing time,' 'participation of students,' 'mentor's role (a kind of teaching manual),' reflective practice have not developed and similar patterns of discussion were repeated. From these results, we suggested ways of facilitating pre-service teacher community's co-reflection from the viewpoint of an activity system.

Effects of Collective Intelligence-Based SSI Instruction on Promoting Middle School Students' Key Competencies as Citizens (집단지성을 강조한 과학기술 관련 사회쟁점 수업이 중학교 영재학급 학생들의 역량 함양에 미치는 효과)

  • Lee, Hyunju;Choi, Yunhee;Ko, Yeonjoo
    • Journal of The Korean Association For Science Education
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    • v.35 no.3
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    • pp.431-442
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    • 2015
  • SSI instruction can be an effective tool to promote key competencies for future citizens. Our assumption of the study is that applying the concept of collective intelligence in the context of SSI learning would facilitate the learning. Thus, we designed and implemented Collective Intelligence-based SSI instruction over almost a year and observed the effects of the instruction on enhancing students' collaboration, information management, critical thinking, and communication skills. Twenty 9th grade students enrolled in a science-gifted program voluntarily participated. Data was collected by administering a questionnaire to examine the skills before, in the middle of, and after the instruction, and by conducting classroom observations and focus student group interviews. The results indicated some degree of improvement in their targeted skills. First, they experienced the expansion of their thoughts by actively sharing information and ideas using the web platform. Second, they became more flexible and open to different points of views in order to accomplish a common goal. Third, they appreciated having independent time and space to explore their own positions on the issues and to search necessary information, and believed that the process encouraged them to more pro-actively participate and communicate in the group debates. Lastly, they positively perceived the values that collaboration with diverse group members could produce.

Effects of an Anti-Smoking Program to Prevent Lung Cancer among Urban Aboriginals in Taiwan

  • Lin, Mei-Hsiang;Huang, Sheu-Jen;Shih, Whei-Mei Jean;Wang, Pao-Yu;Lin, Li-Hui;Hsu, Hsiu-Chin
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.11
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    • pp.6451-6457
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    • 2013
  • Background and Purpose: Indigenous people who leave their hometowns and move to the city to earn a living became urban aboriginals. During the process of adapting to urban living situations, they may use various coping strategies such as smoking to overcome their stress. Therefore, it is crucial to provide health education including smoking prevention, increasing knowledge regarding of tobacco hazard, self-efficacy of anti-smoking, and adjusting smoking behavior so as to empower their anti-smoking motivation to prevent lung cancer. The purpose of this study was to explore the effectiveness of an anti-smoking program on urban aboriginals in Taiwan. Methods: A quasi-experimental study design with purposeful sampling was employed. A total of 125 aboriginal subjects were recruited from two local churches at Shu Lin area in northern Taiwan. Subjects were divided into an experimental group (n =64 ) and a control group (n = 61). Both took pre-tests in order to set baseline values, and only the experimental group participated for 3-weeks in the anti-smoking program classes. Both groups took post-tests immediately after the intervention in order to evaluate the immediate effects of the teaching program, and a follow-up test was conducted four weeks after the intervention. Data were analyzed using descriptive statistics, one-way ANCOVA, and repeat measure ANCOVA. Results: After controlling for confounding variables, the results showed that there were statistically significant differences in the self-efficacy of anti-smoking and smoking behavior between experimental and control groups in the immediately post-test and the follow-up test (p < 0.05). However, there was no significant differences in the recognition of hazards of smoking at eiter time point. Conclusions and Implications for Practice: The findings of this study revealed that the anti-smoking program effectively improved self-efficacy of anti-smoking, and decreased the smoking behavior in urban aboriginals. They provide useful information as a reference regarding of aboriginal health promotion to health providers. It is imperative that anti-smoking be reinforced for those regular smokers to prevent induction of lung cancer.

A Study on Improvement Plan for Building Up Smart Literacy Core Competencies of Pre-Service Teachers (예비 교사의 스마트 리터러시 핵심 역량 강화를 위한 개선 방향 연구)

  • Jeon, Mi-Yeon;Kim, Mi-Yeon;Kim, Eui-Jeong
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2013.05a
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    • pp.421-426
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    • 2013
  • Under the education system which is shifting to smart circumstances the level of literacy competencies of pre-service teachers who carry out teaching and learning in the future will be drawn in this study. Because above all the role of inservice teachers is so important that smart education may be smoothly carried out and established, this study has been done for the purpose of establishing the understanding of smart literacy of pre-service teachers who carry out smart education in education field in the future and proposing what competencies be needed. To achieve this goal, first, examined the understanding of smart literacy of pre-service teachers on a basic research. Second, analyzed the competencies level of pre-service teachers on the basis of the index of core competencies for smart education. Third, proposed improvement plan for building up smart literacy core competencies of pre-service teachers. The subjects of this study were surveyed pre-service teachers in a college of education. On the grounds of study it is necessary that define a concept of smart literacy applicable to pre-service teachers and derive standard indexes of core competencies for smart education, also study proposed the requisite curriculum which is capable of fulfilling smart literacy core competencies and improvement plan for building up smart literacy core competencies which is able to reinforce field adaptability as smart education carried out in the high-tech learning circumstances like real education field.

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An Analysis of Information Literacy Education Based on the Operation of Korean Law Schools' Education Curriculum (우리나라 법학전문대학원 교육과정 실행에 나타난 법률 정보활용교육 실태 분석)

  • Kim, Sung-Eun;Jung, Jong-Kee
    • Journal of the Korean Society for Library and Information Science
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    • v.45 no.4
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    • pp.103-122
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    • 2011
  • The main subjects of law school curriculum are composed of subjects based on related laws for law schools. The purpose of this study is to analyze the operation of the legal information subject in law schools and law libraries and to propose efficient operation methods on law information services which would be useful to law schools and law libraries. The results of this study are as follows: 1) 22 law schools have legal information research subjects as an essential or fundamental part of their curricula. Also, 2) in 14 law schools(63.6%) law librarians take part in the instruction of law information research subject, while in three law schools(13.6%) librarians do not participate, and in another three law schools(13.6%) outside experts teach them. Finally, 3) the graduate degrees or final majors of librarians participating in instruction are: Library & Information Science(33.3%), Administration(25%), and Law(25%). These results reflect the need for efforts to change instruction systems to team teaching with professors and law librarians, to give law libraries plenty of administrative support, and to enforce the related associations' roles with law libraries.

The structure of consciousness of board system collegian who attended in fisheries and maritime college (수, 해운 승선계열 대학생의 의식 구조)

  • Lee, Kil-Rae;Bae, Seok-Je;Hong, Sung-Kun
    • Journal of Fisheries and Marine Sciences Education
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    • v.6 no.2
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    • pp.143-160
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    • 1994
  • I have investigated questionaire concerning to the view of worth and construction of consciousness as to boarding system collegian who will employed in fisheries and maritime industries. The results were as follows; It appeared 38.9% that most collegian had a firm subjectivity about enrolled motive, selection of department, they had selected department according to the neighborhood recommendation, own squired score rather than the adaption and prospection, also it was appeared 55% that they had not satisfied with attending to their college, accordingly, the effectiveness of education were demolished in such aspects. It was appeared 74.3% that the education of fisheries and maritime college were divided into theory and practice pertinently also, 77.1% that modulate both technical education and human like education but as a general rule, the education of ocean going liscensed officer was appeared 7.1% only so that, the reformation of the curriculum and contents of education would be needed. As to the relation between professors and collegian, it was appeared 38.4% that well understanding professor, 18.1% that well teaching professor, 13.3% that they having humanlish relation with professor, 30.6% that they will benefit to vocational selection. consequently, the professor have to brings up the harmony on dint of education and industries. The things which collegian think to be worth were 43.6%, intercourse of friend 30.3%, circle activity. 6.6% listening lecture, also, the leisure activity after school were 74.7% with friends. 16.4% alone. consequently, the professor has to guide of leisure activity after lesson. most collegian has a good relationship with their parent(91.6%) but the respond with bad relationship was 8.4%. The most serious agony which collegian think about is vocational problems (48.9%), the other sex problem(22.5%). The objects consult with agony was aquaintance(54.9%). The parent(5.1%), professors(2.3%), the collegian who did not consult with agony was 20.9%. The parents and the professor is not object consult with their agony. so that, the professors has to strengthen the education according to the human nature. As to job after graduation of such college, collegian who wish to be taken job on the fisheries and maritime industry were 50.5%, on the contrary, the collegian who wish to be taken a job no relation with his major subjects was 29.1% especially, the collegian who want to be embarked was 26.3% (fisheries 23.3%, maritime 30.5%). so that, we must adopt the counter plan for the globalization and effective investment on the fisheries and maritime college.

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A Study on the School Library Research Trends Using Topic Modeling (토픽모델링을 활용한 학교도서관 연구동향 분석)

  • Jung, Young-Joo;Kim, Hea-Jin
    • Journal of Korean Library and Information Science Society
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    • v.51 no.3
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    • pp.103-121
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    • 2020
  • This study aimed to analyze the research trends of school libraries from 1990 to July 2020. To this end, LDA topic modeling analysis was conducted to the domestic article abstracts related to school libraries. The total number of documents is 498 papers published by the four major domestic journals in Library and Information Science. The log-likelihood estimate criterion was used to determine the number of topics for topic modeling. As a result of the study, 27 topics were discovered, then, theory were categorized by eight subject areas: general, institutional system, building/equipment, operation/management, data organization, service, education, and others. The most popular research was library utilization classes (T27) and Information Utilization (T2). More than 20 studies were found in each evaluation index development (T13), school librarian placement (T24), learning information media utilization (T3), community public library (T7), library cooperation (T9), library use (T17), library research (T11), reading education (T4), collection development (T5), and education effects/teaching methods (T18).

An Analysis on the Situation of Forestry Mechanization in the Production and Supply of Timber (목재생산 및 공급에서 임업기계화의 현황 분석)

  • Kim, Jae-Hwan;Mun, Ho-Seong;Han, Sang-Yoel;Park, Sang-Jun
    • Journal of Korean Society of Forest Science
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    • v.104 no.4
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    • pp.607-614
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    • 2015
  • This study aims to analyze the current status of timber production operation and the effects of the forestry mechanization projects on timber production. In order to increase the domestic timber production, it is necessary to propel forestry mechanization project, improve policy and institution, broaden forest-road network, enlarge the number of forest workers, enhance timber production and supply system, provide forestry machines, establish forest operation system, and train forest workers. In addition, the reestablishment of policy goals, the consistency of policy, and the rearrangement of laws and institution are considered more important. To improve the results and effects of forestry mechanization project, it is necessary to drive of forestry mechanization project, the spread of forestry machines, the cultivation of trainer ability, the development of training materials, and the teaching of field skill. In order to meet timber buyersí preference, timber needs to be produced through whole tree logging operation system. Expanding the proportion of domestic timber among total timber demand in Korea requires price competitiveness, and the supply ability of high quality product from the perspective of length and width.