• 한국초등과학교육학회지:초등과학교육
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• 제17권1호
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• pp.23-32
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• 1998

A good example of the persistence of naive theories about change in seasons is well knowned: A filmmaker carried a camera into the crowd of gowned graduates at the 1987 commencement of Harvard University and asked a simple question, that is, "Why is it hotter in summer than in winter?" to twenty five students chosen at random. All of the answers except two were that the Earth is closer to the Sun in summer, so it is hotter in summer, but the Earth is farther from the Sun in winter, so it is cooler in winter. Until now, naive theories about the cause in seasons have been extensively studied. However, few studies to overcome these naive theories were reported. Author takes two steps: first, a new model on the cause in seasons is developed. Second, preservice students concepts' change on the cause in seasons through the new model is observed. The author concludes that the new model have a good effect on the preservice students concepts' change on the cause in seasons.

• Journal of Multimedia Information System
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• 제4권4호
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• pp.243-248
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• 2017

In a basic engineering design class, first year engineering department students learn about engineering design relevant theories and carry out simple projects in teams. By doing a group project in this subject, students develop basic skills such as creativity, teamwork, communication, and problem solving. Before, class proceeded in a way where teams were randomly configured in the beginning of semester and students began working on their project immediately. However, this research introduces a new method where at the beginning of the semester, students are assigned group assignments. Teammates are randomly chosen and constantly switched so that students get a chance to work with different people and experience diverse styles and characteristics. Then, they autonomously form into teams with people they work best and carry out their project. We present the behavior of a monkey robot that recognizes emotions as a case of applying the proposed method. The feedback from the students suggest that this proposed team forming method serves to be effective especially since students who were not aware of other students' characteristics can get to know one another better and form a productive team.

• 한국과학교육학회지
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• 제32권8호
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• pp.1318-1332
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• 2012

This paper takes another approach in assessing students' perception of mathematics. Instead of asking for verbal description of the students' perception of mathematics, we asked the respondents who were all college students to draw their perception of mathematics. This relatively new approach enabled students to take a second look of how they perceived math and, at the same time, explored students' creativity and provided a less austere appearance to mathematics which was taken usually in a more formal and severe manner. This approach of assessing students' perception of mathematics generated new information that could not be normally gleaned from other approaches like Likert Scale. Some drawings of mathematics of the respondents reinforced their math affect towards mathematics. For those who hated math, their drawings revealed so the same is true with those who loved mathematics. Examining the visual representations of mathematics and looking for commonalities, the researcher found a number of interesting themes that may shed some light to educators' understanding of students' math affect.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제18권1호
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• pp.31-40
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• 2014

Working with dynamic visual representations can help students-with-computer discover new mathematical ideas. Students translate among multiple representations as a strategy to investigate non-routine problems to explore possible solutions in mathematics classrooms. In this paper, we use the area models as new representations for our secondary students to investigate three problems related to the average speed of a particle. Students show their ideas in the process of investigating arithmetic mean, harmonic mean, and average speed through their created dynamic figures. These figures really utilize dynamic geometry software.

• 의학교육논단
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• 제9권2호
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• pp.41-48
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• 2007

Yonsei University College of Medicine is about to adopt a new admission system in 2009 for postgraduate medical school. in which 4-year college graduates apply to it, instead of applying of high school graduates to undergraduate medical school. For preparing the new system, now, an admission policy is being intensively investigated. In the present admission system in Yonsei College of Medicine, college or university graduates with diverse majors such as pharmacy, biochemistry, engineering, social science and so on other than a medical major can be transferred into the undergraduate medical course when vacancy for enrollment is available. This study was performed to analyze the academic achievement of the transferred students for establishing a new admission system. In this study, the GPAs of 94 medical students transferred for 1998 to 2006 years were analyzed regarding academic and personal background, and compared with those of untrans- ferred medical students. The results showed some features. Particularly, the GPAs of transferred students with t he majors of art and social sciences were not lower than those with the major of natural sciences while transferred students with majors of pharmacy. veterinary science, nursing science, and biotechnology had their high academic achievements during the undergraduate medical courses.

• Child Health Nursing Research
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• 제23권3호
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• pp.340-352
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• 2017

Purpose: This study was done to explore the experiences of ego identity development in Korean nursing students. Methods: Data were collected from 16 nursing students through in-depth interviews. The main question was, "Could you tell me your experience of developing an ego identity?" Data were analyzed using Strauss and Corbin's grounded theory methodology. Results: The core category of the experiences of ego identity development in Korean nursing students was 'trying to be a different new person'. Action/interaction strategies were 'solving the problem using experiences', 'making one's own success story', and 'making harmony with others'. Consequences were 'being sure of oneself as a new person'. Conclusion: Korean nursing students tried to use their experiences, achieve success, and harmonize with others. Their efforts were influenced by conflicts and supports of people around. Therefore, nurse educators should understand contextual and intervening conditions of nursing students, and try to help them achieve ego identities.

• 한국영어학회지:영어학
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• 제2권3호
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• pp.373-401
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• 2002

It is often observed that Korean migrant students overseas experience various kinds of anxieties learning English as a second language although they are in an English-speaking country like New Zealand. The context of learning English as a second language is explored by examining language anxieties experienced by recent Korean migrant students in New Zealand. 177 students were surveyed using questionnaires asking their anxieties over various contexts of English learning processes. The three stages of language anxiety of Input, Processing, and Output showed that there were some degrees of anxiety among the students at each stage depending on their ages, age at migration, and duration of residence, in particular. Students tended to experience more language anxiety in school than outside the school. It was also clear that students were experiencing more anxieties with English than with Korean in the four language skills of speaking, listening, reading and writing. Writing was commonly found in English and Korean to be the most frequent source of anxiety among the four language skills. Some implications from the results are suggested for parents, teachers, and students.

• 한국수학교육학회지시리즈A:수학교육
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• 제47권2호
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• pp.169-180
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• 2008

The purpose of this study was to analyze the elementary students' mathematical thinking, which is found during mathematical problem solving processes based on mathematical knowledge, heuristics, control, and mathematical disposition. The participants were 8 fifth grade elementary students in Seoul. A qualitative case study was used for investigating the students' mathematical thinking. The data were coded according to the four components of the students' mathematical thinking. The results of the analyses concerning mathematical thinking of the elementary students were as follows: First, in terms of mathematical knowledge, the elementary students frequently used conceptual knowledge, procedural knowledge and informal knowledge during problem solving processes. Second, students tended not to find new heuristics or apply new one, but they only used the heuristics acquired from the experiences of the class and prior experiences. Third, control was found while students were solving problems. Last, mathematical disposition influenced on the mathematical problem solving processes. Teachers need to in-depth observations on the problem solving processes of students, which leads to teachers'effective assistance on facilitating students' problem solving skills.

• 한국과학교육학회지
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• 제38권2호
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• pp.97-112
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• 2018

Conducted within the methodological framework of action research, this study examines the ways in which a beginning science teacher in a Korean elementary classroom engaged in collaborative research with her own students to resolve problems preventing effective science teaching and learning. Specifically, this study uses cogenerative dialogue between teachers and students to develop new teachers' knowledge of how to manage the classroom to be able to more effectively implement inquiry instructional strategies and knowledge of students as learners. Findings from this research suggest that by involving students in cogenerative dialogues, beginning teachers are provided with valuable insights into how elementary students think about school, science, and teaching and learning, which can help expand a beginning teacher's capacity to be an effective science teacher of science for all learners, especially diverse learners. These findings suggest that teacher education programs could better support beginning teachers by placing greater emphasis on how to conduct action research, including how to implement cogenerative dialogues to catalyze positive changes in their own classrooms. We conclude by discussing the important implications this research has for supporting new teachers struggle to effectively teach science and who would benefit from using strategies to foster improved relationships with their students and improved understanding about the challenges faced by diverse learners in their classroom.

• 한국과학교육학회지
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• 제25권6호
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• pp.698-709
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• 2005

When modeling students' conceptual understanding, there are several different frameworks, among which are the alternative conception framework and the mental model framework, which converge to suggest a form of knowledge representation. However, little research has explained how they are different from each other and from memory. The purpose of this study was to develop a new mental model theory that integrates the different terminologies and their background theories, which refer to students' ideas not only in science education, but also in other research areas. For this purpose, at first, we compared different terminologies including alternative conception, p-prim, and mental models, and the underlying theories used for representing students' ideas in learning science. Through such comparison, we tried to find the relationship among them. We reviewed related literature and synthesized the results from both cognitive science (related research areas) and science education approaches, especially, Vosniadou's mental model theory. Based on reviewing previous studies, we have developed a preliminary mental model theory 'an integrated theoretical structure of mental models'. We applied the new mental model theory to interpret data on students' ideas about circular motion from our previous research. We expect our new mental model theory will help us understand how students form their own ideas in science from an integrated perspective.