• Journal of Korean Elementary Science Education
• /
• v.41 no.2
• /
• pp.338-355
• /
• 2022

This study explored the effects of pre-service elementary teachers' inquiries into science class dilemmas. By closely examining the characteristics of the pre-service teachers' inquiry processes and changes in their educational decisions, the effectiveness of using dilemmas as part of teacher education was determined. Twenty fourth-year university pre-service teachers participated and conducted inquiries into science class dilemmas over seven weeks. Based on pre- and post-questionnaires, KWHL tables, inquiry reports, discussions, and group class presentations, the major factors that influence the pre-service teacher's decision-making changes were extracted. The pre-service teachers found the science inquiry process meaningful when exploring the science topics covered in the dilemmas, and claimed that elementary school students would be able to engage in meaningful science explorations if they learned science through inquiry. Furthermore, the pre-service teachers explored the thinking processes and background knowledge of the students in different ways. Documents such as teacher's guides and the curriculum were examined and the students' thought processes were identified through interviews with the teachers and students, which were found to reflect their educational decision-making. Moreover, it was recognized by the pre-service teachers that depending on the situation, alternative teaching methods were possible. The focus on the unstructured dilemma problems provided the pre-service teachers with problem-solving situations that triggered scientific inquiry and exploration of student thinking and revealed the complexity of science teaching and learning. Based on these results, the teacher education implications for using dilemma cases are discussed.

• Journal of the Korean Society for Library and Information Science
• /
• v.55 no.1
• /
• pp.161-180
• /
• 2021

This study investigates ethical dilemmas of teacher-librarians in their professional practice. Within the framework of "Librarians' Statement of Ethics" by Korean Library Association, the study used the survey and semi-structured interview with teacher-librarians. 259 teacher-librarians responded the survey and 5 teacher-librarians participated the interview. The survey was analyzed using descriptive statistics to find how often teacher-librarians experience ethical dilemmas. The semi-structured interview was transcribed and analyzed to draw the individual cases of teacher-librarians' ethical dilemmas. The results indicate that teacher-librarians experience ethical dilemmas in relation to information access and intellectual freedom most often. It was difficult for teacher-librarians to relate their professional duties with their expertise and that they were not clear on how to avoid copyright issues and how to deal with the balance between users and copyright holders. This study had implications that individual dilemma cases are so context-dependent that teacher-librarians had to make decisions individually. They tried hard to find the balance between protecting students from harmful resources and library ethics. Researchers and practitioners need focus more on finding where the balance is and how teacher-librarians deal with their ethical dilemmas.

• Korean Journal of Social Welfare
• /
• v.64 no.3
• /
• pp.203-229
• /
• 2012

This study aims to analyze fundamental dilemmas of welfare-to-work programs, which aim to introduce labor market principles to the welfare system. Through a qualitative case study of a South Korean welfare-to-work program (the self-sufficiency program), this study demonstrates that various institutional problems are an inevitable consequence of such welfare-to-work programs because they have tried to combine two contradictory values and principles of the labor market system and the social welfare system in one policy. The analysis of the collisions between social welfare and market labor in the self-sufficiency program suggests that not only institutional reforms, but also profound debates on the values and principles underlying welfare-to-work programs are necessary to solve the phenomenal conflicts and problems with such programs.

• Proceedings of the Korean Society for Environmental Edudation Conference
• /
• 1997.12b
• /
• pp.35-50
• /
• 1997

• Hwankyungkyoyuk
• /
• v.10 no.1
• /
• pp.91-106
• /
• 1997

• 한국과학교육학회:학술대회논문집
• /
• 2008.01a
• /
• pp.121-121
• /
• 2008

• The Journal of the Korea Contents Association
• /
• v.20 no.12
• /
• pp.278-286
• /
• 2020

The prisoner's dilemma game which is a representative example of game theory is being studied with interest by many economists, social scientists, and computer scientists. In recent years, many researches on computational approaches that apply evolutionary computation techniques such as genetic algorithms and particle swarm optimization have been actively conducted to analyze prisoner dilemma games. In this study, we intend to evolve a strategy for a iterated prisoner dilemma game participating two or more players using three different binary particle swarm optimization techniques. As a result of experimenting by applying three kinds of binary particle swarm optimization to the iterated prisoner's dilemma game, it was confirmed that mutual cooperation can be established even among selfish participants to maximize their own gains. However, it was also confirmed that the more participants, the more difficult to establish a mutual cooperation relationship.

• Proceedings of the Korea Contents Association Conference
• /
• 2011.05a
• /
• pp.165-166
• /
• 2011

u-City 사업 시행주체와 지자체의 경영난에 따른 u-City 인프라 구축 및 운영난이 함께 맞물려 새로운 돌파구가 필요한 시점이다. 즉 u-보건의료, u-방범, u-교통, u-환경 등의 복지에 대한 수요 충족과 지역의 u-City산업발전을 통한 지역생산성 제고 등 새로운 딜레마를 어떻게 극복해 나갈 것인가 하는 모색이 필요하다. 본 연구는 성남시를 사례로 이러한 딜레마 극복을 위한 대안을 제시하고자 한다.

• Journal of The Korean Association For Science Education
• /
• v.35 no.4
• /
• pp.573-584
• /
• 2015

Inquiry has been consistently emphasized in science education as a crucial element for learning. Although many researchers came to agree on the importance of scientific inquiry, authentic inquiry activities are hard to be actualized in an educational context. Therefore it is required to critically examine what teachers have difficulty in teaching inquiry. In this article, we looked into inquiry-based science activities in a small group setting where pre-service science teachers faced dilemmas between cognition and practice of inquiry. A case study was conducted on eight undergraduate students who are majoring in science education. The participants attended a weekly science program for middle school students in low SES as teaching assistants and mentors, and took full care of his/her mentees during open-inquiry activities. The results were drawn by analyzing participants' personal and group interviews, participant observations, self-reports, and others. The pre-service teachers viewed the knowledge and procedure of science as an essential factor in inquiry activities along with student's spontaneous attitude. However, in the process of performing inquiry, they faced several dilemmas between ideal cognition and real activities. The aspects of dilemmas could be summarized in three pairs of opposing concepts: 'diverging inquiry or converging science', 'interest-centered inquiry or learning-centered inquiry', and 'student as the subject or student with the insufficient expertise.' We discussed ways of resolving dilemmas and alternative perspectives on scientific inquiry.

• Journal of Digital Convergence
• /
• v.18 no.6
• /
• pp.17-32
• /
• 2020

This study analyzes the regulatory issues of stakeholders, the firm, the government, and the individual, in the data industry using the principal-agent theory. While the importance of data driven economy is increasing rapidly, policy regulations and restrictions to use data impede the growth of data industry. We applied descriptive case analysis methodology using principal-agent theory. From our analysis, we found several meaningful results. First, key policy actors in data industry are data firms and the government among stakeholders. Second, two major concerns are that firms frequently invade personal privacy and the global companies obtain monopolistic power in data industry. This paper finally suggests policy and strategy in response to regulatory issues. The government should activate the domestic agent system for the supervision of global companies and increase data protection. Companies need to address discriminatory regulatory environments and expand legal data usage standards. Finally, individuals must embody an active behavior of consent.