• Journal of the Korean earth science society
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• v.32 no.5
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• pp.504-513
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• 2011

In this study, we investigated how elementary science teaching has changed with the introduction of the National Assessment of Educational Achievement (NAEA). Teachers are held accountable for student performance as measured by the mandatory nation-wide standards tests to satisfy the needs of accountability and quality assurance systems. In relation to the teaching of science in the elementary school, professionalism meets potential threats with the advent of national test. Through analysis of the classroom teaching and open-ended interviews, we explored the teacher's concerns about the national test and how their science classes have changed to prepare for this test. According to the results, the national test made elementary teachers accountable for the content of their science classes, limits teachers' autonomy in reconstruction of curriculum, and forced teachers to conduct conclusion-centered lessons even in elementary science classes. In addition, teachers argue that the national test precludes the possibility of differentiated education and differentiated assessment. Based on the results, we suggested a new professionalism in this accountability era, so called 'informed professionalism', which refers to the ability of teachers to interpret and implement curriculum and policy mandates at the local, school and classroom level to generate equitable and improved student outcomes through teaching and learning. We also suggested further research on the teacher professionalism in teaching science contents.

• The Journal of Sustainable Design and Educational Environment Research
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• v.10 no.2
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• pp.61-72
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• 2011

The purpose of this study is to carry out the research of the satisfaction level of consumers (students and teachers) and managerial characteristics for model classes of the subject classroom system and to draw the effective plan of the system. The conclusions are as follows First, the biggest advantage of the system is to fulfill the educational goal according to an individual level and ability of each student while the biggest disadvantage is the inconvenience of students to change their classrooms for each specific class. Second, it is necessary to rearrange the classrooms according to the applied subjects from the aspect of curriculum management since the time frame is not convenient for recess. English and mathematics are required preferentially as applied subjects, however Korean (as a national language) and science are needed to be taught with level-differentiated classes, too. The ideal size of classes is most likely 20-25 students according to the result of research. Lastly, the space of environment is another requirement to secure smooth flow of students' movements and extra space for technical devices used for information research. The above analysis indicates the necessity of supplementation in space planning for further implementation of subject classroom system in secondary school.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.30 no.4B
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• pp.192-201
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• 2005

DiffServ supports aggregated traffic classes to provide various QoS to different classes of traffics. However, current DiffServ specifications do not have a complete QoS management framework. It is possible to lead to serious QoS violations without a QoS management support. From this reasoning, a QoS management system that can manage differentiated QoS provisioning is required. This paper proposes and implements a policy-based QoS management platform for differentiated services networks, which specifies QoS policies to guarantee dynamic QoS requirements. The implementation of the proposed platform is built on W framework and uses XML to represent and validate high-level QoS policies. High-level QoS policies are represented as valid XML documents and are mapped into Em beans of the EJB-based policy server of the platform. The policy distribution and the QoS monitoring are processed using SNMP.

• Proceedings of the KSRS Conference
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• 2003.11a
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• pp.96-99
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• 2003

Land cover map is a typical GIS database which shows the Earth's physical surface differentiated by standardized homogeneous land cover types. Satellite images acquired by Landsat TM were primarily used to produce a land cover map of 7 land cover classes; however, it now becomes to produce a more accurate land cover classification dataset of 23 classes thanks to higher resolution satellite images, such as SPOT-5 and IKONOS. The use of the newly produced high resolution land cover map of 23 classes for such activities to estimate non-point sources of pollution like water pollution modeling and atmospheric dispersion modeling is expected to result a higher level of accuracy and validity in various environmental monitoring results. The estimation of pollution from non-point sources using GIS-based modeling with land cover dataset shows fairly accurate and consistent results.

• Communications of Mathematical Education
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• v.28 no.1
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• pp.81-96
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• 2014

Now, most of programs developed were presented as form of item pool by dividing problems by section and level for the level differentiated course, so the utilization is decreasing at the field caused by unconsidered school underachievement elements by achievement. Especially, the study on teaching materials and effective measures map for mid-low level students with low utilization is more urgent. Therefore, in this study we will promote teaching method for improving learning achievement at high school. The development teaching materials(the performance evaluation and diagnostic assessment, reconstruction of textbooks) will be applied to classes for the underachieving students directly, and the achievement in the experimental class was significantly improved compared to the comparative class and the meaningful conclusions could be drawn as results of conducting same assessment based on the experimental class and the comparative class.

• Journal of the Korean Society of Industry Convergence
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• v.26 no.1
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• pp.143-152
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• 2023

In the rapidly changing information age, as the need for Informatization education increases, it is necessary to further activate Informatization education for adults. First, in terms of lifelong learning, this researcher suggested learner analysis, class subject materialization, and lecture environment confirmation as three things to be considered first before the course is opened. And as a matter to be continuously considered in terms of lifelong learning, this researcher considered that the connection with the next quarter class and the continuity of learning opportunities should be considered. This study attempted to reveal the differentiated characteristics of informatization education in terms of lifelong education by presenting and analyzing three actual class cases taught by this researcher at lifelong education institutions. Its characteristics included customized education in the information age, continuous upgrades of equipment, instructor education in response to the information age, and expansion of employment opportunities. Based on the case of information education classes, this study, which analyzed the differentiated characteristics of information education at the lifelong education level, can help improve the quality of instructors and self-development of learners in the actual educational environment. For this, continuous follow-up research will also be needed.

• The Journal of the Korea Contents Association
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• v.19 no.8
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• pp.565-571
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• 2019

This study aims to suggest more efficient ways of teaching English more related to but distinct from major English, based on the needs and awareness of the students of English Education Department. For this, interviews and surveys have been carried out targeting some English Education majors. The results show that the satisfaction level of students is relatively low, marking around the score '3'. While the satisfaction level about classroom environment including the multi-media equipment, and professors' teaching ability, quality and methods is higher compared with other factors, the improvement of English skills and interest-causing levels are lower on average. Besides, this study also includes the surveys on the needs of students for various teaching programs, differentiated classes and qualified instructors. Based on the results, this study makes three suggestions as follows; (1) the opening of some specific English classes for English-education majors (2) the development of English-conversation classes related to English-education majors (3) the development of communication-centered English reading based on English literature.

• Korean Journal of Culture and Social Issue
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• v.29 no.1
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• pp.75-99
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• 2023

The current study aimed to explore the suicidal behaviors and risk factors of completed suicides using psychological autopsy and use them as index variables to classify suicidal types. In addition, this study looked into the influential factors that affect each suicidal type. related to suicidal behaviors and suicidal risk factors by psychological autopsy. In addiction, the distinctions among the classes were analyzed. For this, psychological autopsies were conducted on the families and the close ones of 128 completed suicides. Then, the index variables were finally chosen for classifying suicidal types. The selected index variables for suicidal risk factors were mental disorders, suicide/self-harm, significant changes in physical appearance, marital conflict, adjustment and relationship issues at work/school, unemployment/layoff, jobless status and serious financial problems. The selected index variables for suicidal behaviors were expressing their suicidal attempts, writing suicidal notes, asking for help, the time/place/method of suicidal behavior, past suicidal/self-harm experience and the first person who witnessed the suicide. The Latent Class Analysis(LCA) and the 3-step method were used for classifying suicidal types. Then external variables(financial changes, cohabitation, existence of stressors, changes in stress level or relationships and family members with mental disorder/alchohol problems/ physical disorders, and work/school stisfaction) were applied for distinguishing classes. As a result, 5 classes(financial problems, adjustment problems, complex problems, psychiatric problems, and response to event[s]) were revealed on suicidal behaviors and 3 classes(residence- suicidal attempt- found by family, nonresidence- nonsuicidal attempt- found by acquaintances, residence- nonsuicidal attempt- found by family) were presented on suicidal risk factors. External variables such as gender, marital status, cohabitation, changes in relationships significantly differentiated among the 3 classes. Especially, class 3(residence- nonsuicidal attempt- found by family) tended to cohabit with others, were married, and had a significantly high level of interpersonal conflicts. When comparing the 5 classes of suicidal risk factors, auxiliary variables such as economic changes, cohabitation, stress, relationship changes, and family-related problems, and school/work satisfaction significantly differentiated the 5 classes. Especially class 3 (complex problems) experienced comparatively less family-related problems, but showed an aggravating level of personal stress. Suicial prevention strategies should be provided considering the characteristics of each class and the influential factors.

• Journal of Korean Elementary Science Education
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• v.23 no.3
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• pp.219-227
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• 2004

This study aims to investigate science teaching and learning for the gifted in comparison with regular classrooms in elementary schools. A questionnaire was developed to survey gifted and general students＇ perceptions to elementary science teaching and teaming with employing a teaching and learning model for the gifted by Maker and Neilson (1995, 1996). The 28 item questionnaire consisted of four categories of content, teaching and teaming process, student product, and learning environment, and each category included six to nine items. Randomly selected 114 students from gifted classes and 99 students for regular classes responded to the questionnaire through the use of five-point Likert scale. It was found that there are significant differences between gifted and regular classes of science at all four categories of the teaching and learning model for the gifted. Therefore, science teaching and teaming for the gifted seemed to be differentiated from regular classes and emphasized students＇ creativity. However, no differences were appeared in a few items: study of gifted people and research methods (gifted=3.0; regular=.21 F=2.54), students＇ freedom of choice for topics of lessons, tasks, etc., (gifted=3.1; regular=3.0, F=0.31), student product addressed to real audience (gifted=2.8, regular=2.6, F=0.96), and students＇ high mobility to seek for data in library, etc. during class periods (gifted=2.3, regular= 2.3, F=0.01). It was concluded that science education for the gifted in Korea calls for quality improvement in terms of teaching and teaming in various aspects.

• Journal of the Korea Convergence Society
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• v.7 no.3
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• pp.121-129
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• 2016

This study explains the fundamental problems of MOOC (Massive Open Online Course) based on major survey results for MOOC and online courses conducted in the United States. Consequently, this study integrates the following conclusions and suggestions on how to improve MOOC and convergence of MOOC and universities under the current IT technology. First, the division into small sized classes will solve the problem of massiveness with MOOC. The problem of openness will be solved by providing differentiated courses based on placement tests; and the weakness of onlineness can be complemented through Flipped Learning methodologies. Second, in convergence of universities and MOOC, there are two desirable approache s: credit-free courses use the improved MOOC suggested in this study while credit courses are conducted by Flipped Learning, based on core online courses within departments. In addition, the credit courses offer intensive and supplementary ones together if possible. Third, MOOC will be utilized more widely as it will offer differentiated courses and be produced by education-based universities.