• Korean Journal of English Language and Linguistics
• /
• v.3 no.2
• /
• pp.281-308
• /
• 2003

The purpose of this study is to determine the effects of CMC-based English learning. In this study, CMC components were found to provide circumstances of facilitating interactions between student-student and student-student-teacher, which enabled students to accomplish language learning tasks. Findings of this study are as follows: First, CMC based language learning experience helps students have positive attitudes toward their English language learning. Second, student-student-instructor interaction group outperformed other groups in academic achievement and class activity participation. Third, cooperative learning groups more actively participated in the class activity than the individual learning group resulting in better academic performances. These findings supported the fact that cooperative learning with CMC components are useful in bringing more class participation and positive attitude that were believed to foster language learning than other groups in traditional language learning environments. This study suggests that the instructor needs to use instructional design strategies helpful to facilitate active interactions between instructors and students in order to achieve better effectiveness of English learning in a CMC based learning environment.

• Journal of Korean Home Economics Education Association
• /
• v.30 no.3
• /
• pp.91-109
• /
• 2018

This research aimed to develop teaching-learning plans applying character education components and STAD cooperative learning strategy focusing on the 'Housing and residential environment' unit in accordance with the 2009 revised Technology·Home Economics curriculum. In order to achieve the purpose of the research, this study was conducted in order of analysis, design, development, and evaluation. The results of this study is as follows. First, at the analysis stage, relevant literature, Technology·Home economics curriculum, and the contents of "housing and residential environment" unit from 12 textbooks published by 12 publishers were analyzed. Second, at the design stage, teaching-learning plans, teaching materials, and learning activity sheets applying character education components and STAD cooperative learning strategy were designed to increase the interest degree of the learner and character of middle school students. Third, at the development stage, a total of 8 classes of teaching-learning plan was developed. In the evaluation stage, the primary and secondary validity evaluation procedures were done by Home Economics education professors and Home Economics teachers. Teaching-learning plans and learning activity sheets were revised and complemented based on the feedback from the first validity evaluation. As a result of secondary validity evaluation, it can be seen that the teaching-learning plans and learning activity sheets developed in this research are reasonable and suitable for improving character of middle school students. It is expected that these teaching materials applying STAD and character education components will be utilized as a helpful source for curriculum developers and in-service teachers.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.16 no.1
• /
• pp.671-676
• /
• 2015

The aim of this thesis was to develop PBL(Problem-Based-Learning) problems to supply the problems to classes and to confirm the effectiveness of PBL for PBL applications to element design in engineering schools. Modern industrial society needs competent people with abilities in cooperative learning, self-controlling learning, united knowledge application, and creative problem-solving. Universities need to offer opportunities for improving the problem-solving ability and cooperative learning to learners to train competent people that society demands. PBL activity is a proper learning method for the execution of the above offer. The study subjects were 32 sophomore students in H University who took 'Engineering design 1', which is Element design. Five PBL problems were applied to the class for 15 weeks. They wrote and submitted a reflective journal when they finished the every given PBL activity. In addition, they wrote a class evaluation form after the $5^{th}$ PBL problem's activity ended. The study showed that the students experienced the effectiveness of PBL in many fields, such as the comprehension of the studied contents(71.87%), the comprehension of cooperative learning (87.5%), authentic experience, problem-solving skills (90.63%), presentation skills (96.87%), communication ability, self-directed study ability, and confidence (96.87%). The students realized that PBL learning activities are important because students could develop into future intelligent engineers that modern industrial society demands through PBL learning activities.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.19 no.4
• /
• pp.154-160
• /
• 2018

This thesis aims to develop PBL (Problem-Based-Learning) problems. Its goal is for some groups of students to creative their own problems and to confirm the effectiveness of PBL as they apply it to AI (Artificial Intelligence) in engineering schools. Modern industrial society needs competent people who have abilities in cooperative learning, self-controlled learning, united knowledge application, and creative problem-solving. Universities need to offer their students the opportunity to improve their problem-solving and cooperative learning abilities in order to train the competent people that society demands. PBL activity is an appropriate learning method for the accomplishment of these goals. The study subjects are 37 sophomore students in H University who are studying 'AI'. Five PBL problems were submitted to the class over a period of 15 weeks. The students wrote and submitted a reflective journal after they finished each PBL activity. In addition, they filled out a class evaluation form to assess the performances of each member when the $5^{th}$ PBL problem activity was accomplished. The study shows that the students experienced the effectiveness of PBL in many fields, such as the comprehension of the studied contents (86.48%), comprehension of cooperative learning (94.59%), authentic experience (75.67%), problem-solving skills (89.18%), presentation skills (97.29%), creativity improvement (81.08%), knowledge acquisition ability (86.48%), communication ability (97.29%), united knowledge application (78.37%), self-directed study ability (86.48%) and confidence (97.29%). Through these methods, the students were able to realize that PBL learning activities play an important role in their learning. These methods prepare and enhance their ability to think creatively, work systematically and speak confidently as they learn to become competitive engineers equipped with the knowledge and skills that modern industrial society demands.

• Journal of Communications and Networks
• /
• v.14 no.5
• /
• pp.471-480
• /
• 2012

Reliable detection of primary user activity increases the opportunity to access temporarily unused bands and prevents harmful interference to the primary system. By extracting a global decision from local sensing results, cooperative sensing achieves high reliability against multipath fading. For the effective combining of sensing results, which is generalized by a likelihood ratio test, the fusion center should learn some parameters, such as the probabilities of primary transmission, false alarm, and detection at the local sensors. During the training period in supervised learning, the on/off log of primary transmission serves as the output label of decision statistics from the local sensor. In this paper, we extend unsupervised learning techniques with an expectation maximization algorithm for cooperative spectrum sensing, which does not require an external primary transmission log. Local sensors report binary hard decisions to the fusion center and adjust their operating points to enhance learning performance. Increasing the number of sensors, the joint-expectation step makes a confident classification on the primary transmission as in the supervised learning. Thereby, the proposed scheme provides accurate parameter estimates and a fast convergence rate even in low signal-to-noise ratio regimes, where the primary signal is dominated by the noise at the local sensors.

• Journal of the Korean Chemical Society
• /
• v.58 no.4
• /
• pp.406-417
• /
• 2014

The importance of small group activity has recently been emphasized in the gifted education in science because of the increased needs to foster the human resources that could explore through the communication and collaboration. In this study, we investigated the characteristics of the verbal interaction according to the learning styles of the gifted-students in science in the small group activity and examined how learning style affected the interaction within a group in order to seek an effective grouping strategy. The competition, cooperative, and dependent students with learning style in the small group 1 and the cooperative, cooperative, dependent students in the small group 2 were assigned by the 6 science high school students. The analyses of the results revealed that the small group 1 showed the asymmetric interaction of the low level, whereas the small group 2 showed the symmetric interaction of the high level. In other words, the frequencies of in-depth interaction in the small group 2 were higher than those in the small group 1, and also students in the small group 2 were equally involved in the activity rather than the small group 1. These results suggested that the grouping by the students' learning styles in the small group activity should affect significantly the participation decision in activity and the level of verbal interaction. Educational implications of theses findings were discussed.

• Knowledge Management Research
• /
• v.13 no.2
• /
• pp.73-93
• /
• 2012

Although a wide range of theoretical researches have emphasized on the importance of knowledge management in cooperative R&D network, the empirical researches to synthetically examine the role of organizational learning and open innovation which influence on the performance of technological innovation are not enough to meet academic and practical demands. This study is to investigate the effect of open innovation and organizational learning in venture business on technological competitive advantage and establish the mediating role of organizational learning. For the purpose, the questionnaires, made based on the reviewing previous researches, were collected from 274 Korean venture businesses whose managerial focus is on developing technological innovation. As a result of analysis, the relational dimensions of open innovation - network, intensity and trust shared by a firm with external R&D partners - as well as the internal organizational learning system and competence have positive influence on building technological competitive advantage whose sub-variables are technological excellence, market growth potential and business feasibility. In addition, it is identified that organizational learning has the mediating and moderating effect in the relationship between open innovation and technological competitive advantage. These results imply that open innovation complements and expend the range of limited resources and the scope of innovation in technology-intensive small and medium-sized enterprises. Besides, organizational learning activity reinforces the use of knowledge and resources, obtained from external R&D partners. On the basis of these results, detailed issues and discussion were made in the conclusion.

• Journal of the Korean School Mathematics Society
• /
• v.7 no.1
• /
• pp.121-138
• /
• 2004

For the efficient application of curriculum discretion activity, I developed the program, 'Let's go together', so that curriculum discretion activity can be applied in the classroom. The program consists of several experiences, which are <Man to man paired study>, <the learning materials for Mathematics in our lives>, <the cooperative study in the class> and <the variety experiences about Mathematics>. This study shows the following results: First, T-test about the students' learning attitude and interest in Mathematics, there was dramatic change in students' desire, interest and attitude for mathematics learning. Second, as the role of Baewomi & Dowomi in 'Man to man paired study', Baewomi & Dowomi provided students with confidence of mathematics learning. We were able to ensure this fact from students' essay after the class. Third, teachers found that the number of students who had positive attitude with Self-directed study increased. And students tried to solve mathematical problems by themselves and the time using self-directed learning experience was also increased. This study suggests that there needs more development for learning materials for mathematics in our lives.

• Journal of the Korean Society for Library and Information Science
• /
• v.42 no.4
• /
• pp.73-94
• /
• 2008

There are more than 2 million blind and partially disabled people in Korea. They need access to books and information for all the same reasons as non-disabled persons: for lifelong learning, for social activity, for leisure, and to play a full part in society. In considering these realities, this paper has suggested the various strategies and plans to build and operate a cooperative library service network for the disabled persons. In addition, author commented on the subsequent actions for implementing the cooperative service model.

• Journal of Science Education
• /
• v.40 no.1
• /
• pp.52-71
• /
• 2016

The purpose of this study is to analyze the learning activities which use asexual reproduction learning application(app) of students with special needs through the Cultural Historical Activity(CHAT). The asexual reproduction learning app was developed for students with special needs, and analyzed the learning activities of students with special needs in perspective of CHAT. The app was developed as subsidiary study material for asexual reproduction inquiry learning. Main functions of the app were composed of concept learning, problem solving, video playing, and report writing. According the CHAT analysis, findings indicated that students with special needs as the subject were able to organize division of labor demonstrated in cooperative learning with the object to actively participate in the class by using the tool of an app. This study also showed effective teaching strategy for improvement of learning achievement and task behavior level of student with special needs.