• Tunnel and Underground Space
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• v.17 no.6
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• pp.438-447
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• 2007

This technical report is to introduce the research on SRM (Synthetic Rock Mass) which was presented in 2007 ISRM Congress at Lisbon by Prof, Fairhurst who speak with emphasis on its importance and potential in rock engineering. The Synthetic Rock Mass approach to jointed rock mass characterization (Pierce et al. 2007) is reviewed relative to existing empirical approaches and current understanding of jointed rock mass behaviour. The review illustrates how the key factors affecting the mechanical behaviour of jointed rock masses may be considered and demonstrates that the SRM approach constitutes a significant step forward in this field. This technique, based on two well-established methods, Bonded Particle Modelling in PFC-3D (Potyondy and Cundall, 2004) and Discrete Fracture Network simulation, employs a new sliding joint model that allows for large rock volumes containing thousands of pre-existing joints to be subjected to any non-trivial stress path. Output from SRM testing includes rock mass brittleness and strength, evolution of the full compliance matrix and primary fragmentation.

• Journal of The Korean Association of Information Education
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• v.12 no.2
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• pp.173-182
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• 2008

Teachers should actively maintain and improve their ICT competency in today's ever changing information society. A standardized system should now be developed to assist educators when choosing courses to improve their ICT competency. Previous ICT competency studies have only measured one's current ICT abilities rather than analyzing the skills necessary for educators to be successful in the educational system. This study developed an assessment tool to measure the ICT competency levels of CEOs who have the potential to be the decision makers in ICT education. In order to accomplish this, the jobs, duties, and tasks of educational CEOs were analyzed against the ICT Skills Standards for Teachers to determine which ICT skills are required by educational CEOs. Sixty-three questions were extracted from this analysis, guiding educational CEOs in the determination of their own ICT skills level.

• The Journal of Korean Association of Computer Education
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• v.10 no.2
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• pp.9-16
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• 2007

The purpose of this research is to suggest effective teaching and learning method suitable for IT-gifted primary school students based on their learning style. This study investigated the means of identifying IT-gifted students by comparing IT-gifted's learning style with average student's. Grasha-Reichmann Student Learning Style Inventory was used, which was proved to identify gifted IT students with 66.45% accuracy. As a result, The learning style of IT-gifted was determined as independent, competitive, participant Therefore, self-directed learning methods seem to be suitable for IT-gifted. IT-gifted also need to have more opportunities to participate in learning activities and discussion with their peers.

• Communications of Mathematical Education
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• v.32 no.3
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• pp.297-314
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• 2018

This article aims at providing implication for teacher preparation program through interpreting pre-service teachers' knowledge by using Shulman-Fischbein framework. Shulman-Fischbein framework combines two dimensions (SMK and PCK) from Shulman with three components of mathematical knowledge (algorithmic, formal, and intuitive) from Fischbein, which results in six cells about teachers' knowledge (mathematical algorithmic-, formal-, intuitive- SMK and mathematical algorithmic-, formal-, intuitive- PCK). To accomplish the purpose, five pre-service teachers participated in this research and they performed a series of tasks that were designed to investigate their SMK and PCK with regard to students' misconception in the area of geometry. The analysis revealed that pre-service teachers had fairly strong SMK in that they could solve the problems of tasks and suggest prerequisite knowledge to solve the problems. They tended to emphasize formal aspect of mathematics, especially logic, mathematical rigor, rather than algorithmic and intuitive knowledge. When they analyzed students' misconception, pre-service teachers did not deeply consider the levels of students' thinking in that they asked 4-6 grade students to show abstract and formal thinking. When they suggested instructional strategies to correct students' misconception, pre-service teachers provided superficial answers. In order to enhance their knowledge of students, these findings imply that pre-service teachers need to be provided with opportunity to investigate students' conception and misconception.

• The Journal of the Korea Contents Association
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• v.11 no.1
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• pp.458-468
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• 2011

Students meet with many problems during programming education in computer education. In part of computer education, computer programming education have been researched. And the research have said that computer programming education have helped to increasing of students' creativity during find answer of problem through flexible thought. Especially, elementary school students, who learn to programming language for the first time, feel difficulty, when they learn computer programming. But the use of EPL reduce difficulties. So Students can focus on the thinking. Therefore, in this paper, a draft was produced and applied to observe the creative elements increasing of elementary school students. Than modify and supplement the draft through improvements to a draft obtained by applying. Also, made the educational material that can be used directly in the field.

• The Journal of the Korea Contents Association
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• v.14 no.10
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• pp.829-839
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• 2014

This study aims at investigating Korean EFL students' writing strategies through their rhetorical patterns and meaning-making for a writing task in an English writing classroom at a Korean university. The participants were the students and teacher in the course, and the data comprised nine pieces of students' opinion writing and interviews with the teacher. To analyze the data, a 'Claim-Support' pattern was adopted. The findings show that most students, 89%, demonstrated the same or similar elements in the 'Claim-Support' pattern for their textual structures and many parts of the meaning-making in their writing were originated from the textbook. These findings reflect that the students pursued the strategy of 'accommodation' in order to succeed in their academic writing regardless of the teacher's intention which focused on creativity and imagination in writing. The conclusion suggest that the students tend to establish their own ways of strategy to cope with the recontextualized setting for writing in English.

• The Journal of Korean Association of Computer Education
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• v.20 no.4
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• pp.27-36
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• 2017

The purpose of this study is to design and implement an instructional model for flipped learning of programming class. Because a programming process requires a high level of abstract thinking with a good understanding of a programming language, many students have difficulty in programming. For this characteristic of programming, it is not easy to effectively achieve learning goals of programming lesson by lecturing grammatical elements of a programming language and the following examples in a limited class time. In order to overcome these problems and to make effective programming lessons, we designed an instructional model based on flipped learning. Especially, in this study, we analyzed learners' difficulties in programming learning and errors that occurred in actual programming process for designing the instructional model. As a result of applying this model to the class, it was found that the students were generally satisfied with the lesson by having positive communication with other students in the classroom and actively participating in the learning.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.27 no.4
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• pp.85-104
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• 2016

The purpose of this study is to suggest the developmental strategies of information literacy program based on the integrated topics to promote inquiry abilities of middle school students who take part in the free semester system. To that end, the content of the 2015 revised curriculum on a national level was analyzed to develop 6 inquiry themes that incorporate Korean, Social Studies, Music and Art. The instruction and learning guide were consisted of three stages of forming a background knowledge, researching and creating and evaluating the conclusion of the research. The detailed activities for research step were consisted of the four steps of recognition of the problem, information analysis and interpretation, compilation of information and evaluation for each activity. Among the themes "environment" and "appreciation" were applied to a public library and a middle school library as a trial. The trial application saw that students took an interest in programs that subject themes are link with various topics. They were also very satisfied with such programs.

• Journal of the Korean earth science society
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• v.28 no.6
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• pp.707-719
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• 2007

Teachers play key roles in classroom instruction. The perceptions and orientations of teachers about teaching have substantial effect on the practical context of science teaching. Analyzing science teacher's perceptions and orientations about Earth Systems Education (ESE) offers an opportunity to figure out how the goals of ESE might be dealt with. In this study, lesson plans developed by and in-depth interview results with two teachers were analyzed in terms of ESE perceptions. ESE orientations were also investigated in terms of teaching orientations and integration orientations. Research results showed that the teacher's deep understandings about 'Global Scientific Literacy (GSL)', the ultimate goal of ESE, precede the sound ESE teaching in the classroom. To enhance teachers' GSL, exemplary aspects of various integration, including networked integration, should be provided specifically to teachers. Also, the institutionalized approaches to developing ESE curriculum could help classroom teachers activate ESE teaching in their classroom.

• Journal of Korean Home Economics Education Association
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• v.17 no.4 s.38
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• pp.87-100
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• 2005

The Purpose of this study is to understand on the whole trend in the home economics instructions among the middle school. The study has been achieved through observing the actual classroom activities, and stating the results as objective as possible. In as much as clarifying the objectives of observing the classroom activities, it would be deemed effective to understand the overall outline of the home economics instructions, as well as to define the elements that make up the classroom work. Hence, the classroom work has been modularized in stage, namely. planning/organization, execution, and evaluation, as well as extracting nine(9) elements of the classroom work. Video-taped classroom activities, which have been used for this research analysis, consists of twelve(12) study classes, covering the subjects in food/nutrition, clothing, household management, daily life as a consumer, and housing management. The items in the study the items of checklist have been broken down further in an effort to develop a framework for analyzing the results of observing the classroom activities. Also included, in part, is the verbatim transcription of the videotaped classroom activities in progress.