• Journal of The Korean Association For Science Education
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• v.34 no.4
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• pp.349-357
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• 2014

The purpose of this study is to consider the implications of science experiment in class and to seek a direction for its improvement. For this purpose, Science textbooks, teachers' cognitions, and classroom activities have been analyzed to find out how many and what kind of levels of inquiry elements are included in those. In this study, 22 teachers have participated in the questionnaire to investigate their perception about experiment class, and the two instruction cases in two classes of 9th grade have also been analyzed. Results show that most of the textbooks have included questioning, evidence collecting, explanation of phenomena, and connection with existing scientific knowledge. But the elements of communication and justification have been few. Most levels of the inquiry are teacher-led. Although the teachers thought communication and justification are important, their classroom activities does not coalesce with their thoughts. The students mostly spend their time with connecting evidence, they hardly explain the phenomenon based on the proofs as the results of experiment, and the activities of connection with the existing scientific knowledge, and communication and justification.

• Communications of Mathematical Education
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• v.35 no.4
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• pp.425-444
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• 2021

In this study, under the assumption that the goal pursued in measurement area can be reached through the composition of the measurement activity considering the mathematical process, the method of summing the interior angles of a triangle using the measurement error was applied to the 4th grade class of the elementary school. Results of the study, first, students were able to recognize the possibility of measurement error by learning the sum of the interior angles of a triangle using the measurement error. Second, the discussion process based on the measurement error became the basis for students to attempt mathematical justification. Third, the manipulation activity using the semicircle was recognized as a natural and intuitive way of mathematical justification by the students and led to generalization. Fourth, the method of guiding the sum of the interior angles of a triangle using the measurement error contributed to the development of students' mathematical communication skills and positive attitudes toward mathematics.

• Korea and Global Affairs
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• v.1 no.1
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• pp.7-30
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• 2017

The conspiracy theories of political events are occurring in every country and society. In Korean society, conspiracy theories about political events are constantly happening. Conspiracy refers to the phenomenon of a particular individual or group who oppose the official causes of social phenomena. Conspiracy is a resistance to the credibility of the state and the government. In Korean society, conspiracy occurs mainly in political events. The conspiracy theories of political events appear in the form of conservatism and progressivism, which seeks to replace political power and political power to stabilize political power. The conspiracy theory about Jang Jun-Ha's death occurred in the process of seeking justification for a person who is resisting the ruling forces. Also, the conspiracy theory of the Gwangju Democratization Movement and the Cheonan Warship Sinking may be a drag on the justification for the justification for the takeover of the new military government and the justification for the Disconnection of inter-Korean relations. In Korean politics, Conspiracy theory is a factor that confuses Korean society regardless of whether it is true or not.

• Journal of The Korean Association For Science Education
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• v.38 no.2
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• pp.249-257
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• 2018

The purpose of this study was to analyze the knowledge and ability levels of middle school students in four areas: conceptual understanding, argument construction, justification schemes, and use of scientific knowledge in a causal explanation for a genetic phenomenon. A group of 162 middle school students who have taken a class titled Genetics and Evolution participated in the study. Each student answered-and justified the answer to-one question pertaining to genetics. Ability levels were rated from level 0 to level 4, with 4 being the top rating. Students were required to choose one of two competing arguments to explain whether green seed pimps and red seed pimps of the same size and shape were the same species or not. Analyzing conceptual understanding: 47% of the respondents provided the correct answer. Analyzing their abilities for constructing an argument: 75% of the students with the correct answer and 42% of the students with the incorrect answer were evaluated to be at ability level 3 or 4 for argument construction. Analyzing the students' justification schemes: "Scientific idea" and "Analogy" were the most frequently used schemes. Analyzing their use of scientific knowledge: of the students who selected the scientific idea justification scheme, 36% used the correct scientific knowledge, but the remainder used inaccurate or nonspecific scientific knowledge. These findings provide implication for encouraging argumentative writing explaining scientific phenomena regarding epistemic practice.

• Korean Security Journal
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• no.52
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• pp.11-40
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• 2017

This study analyzed individual-level and country-level factors affecting justification of domestic violence amid emerging social significance of family violence. For individual-level variables, prejudice against women in economic and social roles were used from the World Value Survey data. As for country-level variables, total of 36 countries were analyzed with indices that represents gender equality such as women's employment rate and democracy index. Women's employment rate was gathered from the Labour Market Database of the World Bank and democracy index was from the Economist Intelligence Unit. Results showed that both individual-level, prejudice against women in economic and social roles and country-level variables such as women's employment rate and democracy index had significant effects on justification of domestic violence. This result implies the importance of creating positive social culture which promotes positive attitudes towards perceptions of gender role and gender equality. As well, country-level endeavors to raise gender equality in employment deem important. Based on these findings, policy implications and recommendations for future research were discussed.

• Journal for History of Mathematics
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• v.10 no.2
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• pp.64-71
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• 1997

This paper is a sequel to [5]. We investigate a relation between the history of modern western logic and religion. The period from the seventeenth century to the present day is dominated by science; traditional religious beliefs remain important, but are felt to need justification, and are modified wherever science seems to make this imperative.

• Communications of the Korean Mathematical Society
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• v.24 no.4
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• pp.501-508
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• 2009

This paper presents a new representation algorithm which computes the representation for elements of a free group generated by two linear fractional transformations and also the justification of the algorithm in order to show how it operates correctly and efficiently according to inputs.

• Child Health Nursing Research
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• v.24 no.4
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• pp.443-453
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• 2018

Purpose: This study was describes the development and implementation a sex education program with a blended learning method for university students. Methods: Sixty-eight university students were recruited either to the experimental group (n=35) or the control group (n=33). This program was developed based on the analysis, design, development, implementation, and evaluation model. The analysis phase consisted of a literature review, focus group interview, expert consultations, and target group survey. In addition, learning objectives and structure were designed, and a printed text-book, presentation slides, cross-word puzzle, and debate topics were developed. In the implementation phase, the program was conducted 3 times over the course of 3 weeks. The evaluation phase involved verification of the effects of the program on sex-related knowledge, sexual autonomy, and justification of violence, as well as an assessment of satisfaction with the program. Results: The experimental group had significantly higher scores on sex-related knowledge (t=5.47, p<.001), sexual autonomy (t=2.40, p=.019), and justification of violence (t=2.52, p=.015) than the control group. Conclusion: The results indicate that this sex education program with blended learning was effective in meeting the needs of university students and can be widely used in this context.

• Journal of the Korea Society of Computer and Information
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• v.10 no.6 s.38
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• pp.269-278
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• 2005

To justify the economic impacts of the internet access management is a purpose of this paper. Previous researches on economic justification were reviewed and the internet access management system. sniffer, and firewall were implemented to monitor real-time sessions and to record blocked attempts. This paper suggests the impact factors and measurement methods to justify the economic values of the internet access management system. Finally, this paper Proves that the overall impacts of the internet access management system have a Positive value because filtering mechanisms cause users to lose a small number of URLs including useful information and to diminish refreshment but save users from various risk points and enhance labor productivity.

• 한국경영정보학회:학술대회논문집
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• 2007.06a
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• pp.126-131
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• 2007

Most Internet auction studies have focused on examining the determinants of auction success or closing price. However, there has been little previous research which investigates dark-side factors such as overbidding behavior in the Internet C2C transactions. For this reason, this study attempts to find situations with the escalation of commitment to bids using Internet auction systems and also examines whether the bidder's bidding is irrational. Therefore, this study applies escalation of commitment to explain the auction process such as the "going, going, gone period" with competition in Internet C2C auctions. In order to describe the auction process in terms of escalation of commitment, this study proposes psychological sunk costs, completion effect, and self-justification as the key factors of escalation of commitment and also willingness to continue bidding reflecting the decision maker's escalation behavior in terms of persistence perspective as final dependent variable. The results of PLS analysis indicate that a bidder's overbidding behavior is explained by the escalation of commitment.