• Journal of Korean Elementary Science Education
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• v.29 no.3
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• pp.326-340
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• 2010

TGT (teams-games-tournaments) cooperative learning is suggested as a method which enables both the individualized teaching-learning and the small group learning in students-centered open education. This study investigated the instructional effects of the pre-learning program applied by ICT-based TGT cooperative module for science museum excursion regarding of the earth and the moon on the science related attitude according to gender difference in elementary school science class. Three classes of third graders (N=87) at a elementary school were randomly assigned to the ICT-based TGT cooperative learning group, the ICT learning group, and traditional learning group. The students were taught about the planning of exploring the moon in the chapter of the earth and the moon, for 1 class hour. Prior to the instructions, the TOSRA(test of science related attitude) and achievement test were administered. Two-way ANCOVA results revealed that the scores of the ICT-based TGT cooperative learning group were significantly higher than the other learning groups for most of the TOSRA scales. However, there was a little significant difference among the three groups in the three distinct scales of TOSRA, Normality of Scientists, Leisure Interest in Science, and Career Interest in Science. Advantage/disadvantage and usefulness of ICT-based TGT cooperative learning were also discussed.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.37C no.11
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• pp.1084-1093
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• 2012

For large multihop networks, large time synchronization (TS) errors can accumulate with conventional methods, such as TPSN, RBS, and FTSP, since they need a large number of hops to cover the network. In this paper, a method combining Concurrent Cooperative Transmission (CCT) and Semi- Cooperative Spectrum Fusion (SCSF) is proposed to reduce the number of hops to cover the large network. In CCT, cooperating nodes transmit the same digitally encoded message in orthogonal channels simultaneously, so receivers can benefit from array and diversity gains. SCSF is an analog cooperative transmission method where different cooperators transmit correlated information simultaneously. The two methods are combined to create a new distributed method of network TS, called the Cooperative Analog and Digital (CANDI) TS protocol, which promises significantly lower network TS errors in multi-hop networks. CANDI and TPSN are compared in simulation for a line network.

• Communications of Mathematical Education
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• v.32 no.2
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• pp.147-174
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• 2018

The purpose of this study was to verify the effect of mathematical disposition and attitude through the foster self-confidence and learning motivation by STAD cooperative learning. For this purpose, we made up an experimental class. And then we investigated the students' change in these aspects after the foster self-confidence and learning motivation by STAD cooperative learning. As a result of the experiment, we find that significant changes on the students' mathematical disposition and attitude utilizing the foster self-confidence and learning motivation by STAD cooperative learning. Therefore, in this study, I want to solve the particular problems that follow. First, what is the reaction of utilizing the foster self-confidence and learning motivation by STAD cooperative learning mathematical program for students? Is it effective utilizing the foster self-confidence and learning motivation by STAD cooperative learning to improve students' mathematical disposition? Third, does utilizing the foster self-confidence and learning motivation by STAD cooperative learning have a positive impact on students' mathematical attitude?

• Journal of the Korea Society of Computer and Information
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• v.11 no.2 s.40
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• pp.285-294
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• 2006

The requirements of Computer Supported Cooperative Work supporting efficient cooperative or collaborative works between multi-users have been increasing in distributed environments. The various technical sections such as group communication technology and distributed processing technology should be provided in Cooperative Work. The replicated development of Cooperative Work applications of a number of common requirements increases development costs enormously and duplicated investment parts. Therefore, systematical development environments are required to develop these common requirements and applications efficiently in Cooperative Work applications development. In this study, we propose the hierarchical role-based coordination model that improves the coordination model of legacy mobile agent to be appropriate in Cooperative Work applications, and design the development environment for Cooperative Work applications based on mobile agent. The proposed hierarchical role-based coordination model provides multi-layered group concepts of mobile agent, and enables implementation of efficient coordination policy per group. Additionally, it supports efficient Cooperative Work application development by role assignment per group unit.

• Journal of the Korea Society of Computer and Information
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• v.11 no.2 s.40
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• pp.329-339
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• 2006

This study did not only raise the necessity of inter-governmental cooperative relations, but explored the plans to induce the more desirable cooperative relations. Accordingly, the study aimed to explore the plans to induce the desirable inter-local governmental cooperative system for festering and developing the sound local governmental system by the indexes of human cooperative capacity as policy means for establishing inter-governmental cooperative relations. The findings show that the behavioral factors of local administrators in the process of inter-local governmental cooperation are characterized by the fact that they belong to the necessary factors for inter-governmental cooperation, though different in extent. Based on this, the present study is expected to lay groundwork for the empirical studies of behavioral characteristics of local administrators in the future.

• Journal of the Korean earth science society
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• v.25 no.5
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• pp.327-335
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• 2004

The purpose of this study was to investigate the effect of cooperative skill training on problem based learning for elementary school science class. Two experiment groups were involved, in which problem based learning model was used and control group, in which traditional instruction was employed. One of experiment groups was trained in cooperative skills before the instruction. The results demonstrated a significant main effect in the scores of achievement and a significant interaction effect between the instructional strategies and learning ability level. The performance of high-level students in the two experimental groups was higher than that of control group. However, the performance of medium and low-level students trained with cooperative skills training was higher than that of students without cooperative skills training. A significant main effect was also found in self-esteem, but there was no significant interaction between instructional strategies and learning ability. Therefore, this study suggests that cooperative skills training is of great importance for minimizing the free-rider effect and increasing collaborative interaction in cooperative learning.

• Korean Journal of Childcare and Education
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• v.7 no.2
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• pp.115-135
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• 2011

The purpose of this study was to developing a cooperative learning model utilize storytelling technique to the Preliminary childhood teachers whose learning was in order to improve ability and collaboration of making relationships a teams members by the cooperative learning which was performed on the basis of the confidence after understanding themselves and others. To achieve the purpose, the study was performed by dividing into two stages. First, the draft of storytelling based cooperative learning model was proposed by performing a literature survey and a case study. Second, the draft model was applied to the actual work. And the draft was modified and developed to the final model on the basis of the draft model's strenth and implemented to 39 students who were the sophomore of child care education department and enrolled the profession class of at B college P city for 8 weeks. From the implementation result of the model, it was obtained that there was the positive reaction on applying storytelling technique to the beginning stage of cooperative learning. And adding of 'Re-constitution role sharing team' step in the original steps was suggested. In the end, this model was modified and issued based on the research result. The researchers proposed a cooperative learning model storytelling based for Preliminary childhood teachers which consists 6 phases : (1) understanding cooperative learning (2) Building the team and role sharing team (3) theme setting and theme structuralization (4) Re-constitution role sharing team (5) announcement of the results and evaluating (6) reflection of general.

• Journal of Korean society of Dental Hygiene
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• v.15 no.2
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• pp.303-310
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• 2015

Objectives: The purpose of this study was to examine the influence of cooperative learning on the learning attitude and self-directed learning capability of learners. Methods: The subjects were 50 sophomores enrolled in cooperative learning for 12-week period from March to June, 2014. A self-reported questionnaire was completed by the subjects. The instruments were 16 questions of learning attitude, 32 questions of self-directed learning, academic achievement, and 12 questions of satisfaction with instruction by Likert 5 scale. Cronbach's alpha was 0.84 in the previous study and 0.78 in this study. Self-directed learning was modified by Yoo and Cheong. Cronbach's alpha of self-directed learning was 0.86 in this study. Academic achievement was assessed by before and after the cooperative learning class. Cronbach's alpha was 0.95 in this study. Their learning attitude and self-directed learning capability were evaluated before and after the cooperative learning, and their satisfaction with the instruction and academic achievement were assessed by the written examination. Results: The score of learning attitude increased from 2.89 in the pretest to 3.38 in the posttest. The self-directed learning of the students increased from 2.98 in the pretest to 3.48 in the posttest. The academic achievement of students also increased from 82.0 in the pretest to 85.2 in the posttest. The satisfaction with instruction was 4.24 of Likert 5 scale. There were significant differences in satisfaction with instruction, cooperative learning and academic achievement. Conclusions: It is important to develop the cooperative learning program linked to self-directed learning for the dental hygiene students continuously. This study will provide the basic data and information for the development of new teaching methods for the dental hygiene.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.9
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• pp.4303-4312
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• 2013

Study explores the effect of the member's social enterpreneurship at nonprofit organizations on cooperative behavior and proved the mediator effect of value congruency among individuals at those organizations. Examined on a nationwide scale with members at nonprofit organizations, this study indicated followings: 1. Innovativeness, Risk Management, and Social Mission. are valid 2. Innovativeness and Social Mission are related to cooperative behavior, 3. Value congruency with each other at an institution exerts positive effect on cooperative behavior, 4. Value congruency over social enterpreneurship and cooperative behavior partially, yet still positively, mediate social enterpreneurship to cooperative behavior. In other words, the higher the social enterpreneurship in each indivisual is, the higher the degree of value congruency among individuals is, leading to more frequent cooperative behavior. This study also suggests that enhancement of social enterpreureship in each individual at work through education should be considered.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.22 no.3
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• pp.129-150
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• 2011

The study aims at discussing issues concerning the establishment of the cooperative repository libraries based on regional central libraries which not only support various types of regional libraries and conduct cooperative businesses with them, but also are responsible for collecting and preserving library materials. The study analyzes concepts and types of cooperative repository libraries by literature review and explores cooperative repository libraries in the United States. Futhermore, it conducts a survey and finds that the regional central libraries do not perform their preservation functions, due to the lack of their manpower and budget. As a result, the study provides an establishment plan for cooperative repository libraries which participant libraries hold ownership of transferred materials and regional central libraries own the right of management. Also, it suggests to expand cooperative repository libraries' service coverage from participants to regional communities.