• Journal of Science Education
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• v.42 no.2
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• pp.120-131
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• 2018

The purpose of this study is to examine the characteristics of science gifted students' understanding of friction acting on a rolling object, and to examine the implications of teaching methods that can be derived from them. For this purpose, 48 students in grade 3 students who take advanced physics classes at the science high school for the gifted were asked to answer three questions about the friction problems. As a result, students' responses were divided into three types: rule, none-rule, and calculation. In addition, students of the rule type have difficulty in reasoning about the friction by using friction rules. We believe that students will be able to reach a deeper understanding of friction if we teach them to correctly infer the direction of friction without using friction rules, along with a strategy to emphasize relative motion in contact.

• Journal of The Korean Association For Science Education
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• v.16 no.2
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• pp.121-133
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• 1996

This study investigates the effect of instructional program using Nott & Wellington's" your nature of science profile" to facilitate the understanding about the nature of science for elementary preservice teachers. To do this. this study used posttest only control group design. The students in control group studied the topic by instructional program using textbook and reference book. Experimental group studied by instructional program: (1)evaluating personally one's understanding of the nature of science using Nott and Wellington's "your nature of science profile"; (2)studying the way of understanding the nature of science focusing five dimensions presented in it; (3)knowing other's understanding the nature of science; (4)discussing and evaluating reflectively the various aspect about it. Because the true understanding about the nature of science is not only to know about the method of science but also to know the target of science. We planned to evaluate the effect of instruction by such dichotomous way as evaluating simultaneously the understanding about the method of science and the target of science. Therefore the Questionnaire to evaluate the effect of instruction consisted two pairs of open-ended Questions: first pair is consisted of questions for the representation and judgement of scientific theory, second pair is consisted of questions for components and sources of scientific manipulation of the structure of science. The results of questionnaires by experimental group(n=75) and control group(n=77) are as follows: (1) Analysing responses about first pair of questions in dichotomous way, we identified four different patterns in students' understanding about scientific theory. And the instructional program using Nott & Wellington's "your nature of science profile" is not significantly effective in the distribution of patterns of understanding about scientific theory, but effective in driving out scientifically valid understanding, naturalistic realism, about scientific theory from the students having realistic aspect in representation of scientific theory; (2) Analysing responses about second pair of questions in dichotomous way, we identified five different patterns in students's understanding about structure of science. And the instructional program using Nott & Wellington's "your nature of science profile" is significantly effective in the distribution of patterns of understanding about structure of science, and effective in driving out scientifically valid understanding, dualistic-circular view or dualistic-circular view, about structure of science from the students having dualistic or dualistic aspect in components of structure of science.

• Journal of the Korean Chemical Society
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• v.51 no.4
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• pp.365-374
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• 2007

The purpose of this study is to investigate the students' conceptions about the reaction rate changes during the chemical equilibrium shifts and also whether the questions about basic concepts of the reaction rate are helpful for the students' understanding of reaction rate changes during the chemical equilibrium shifts. The subjects were 100 students in the 12th grade. The questionnaires were composed of A, B, and A' set, which had to be answered sequentially. The A set consisted of questions asking the change of reaction rate when chemical equilibrium was shifted, the B set was to testify the basic concepts of the reaction rate, and the A' set was the same as the A set. The results showed that the students' understanding of the reverse reaction rate change was lower than that of the forward reaction rate change during the equilibrium shift. Also it was found that students' understanding of the reaction rate change caused by adding the reactant was fairly good while their understanding of the reaction rate change caused by temperature increment was very poor. Since the students marked very high scores in the B set questions, their poor understanding for the reaction rate changes during the equilibrium shifts was not seemed to be due to the lacks of the basic knowledge of reaction rate. Instead, it was due to the failure of applying the basic knowledge of reaction rate to the changes of reaction conditions. It was also found that the average scores of A' set were statistically higher than those of A set. It means the B set items were helpful for the students to solve the A' set items. These results evidenced the possibility of set questionnaires could help the students to connect the related concepts in solving the problems.

• Journal of The Korean Association For Science Education
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• v.25 no.3
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• pp.390-399
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• 2005

The purpose of this study was to examine university students' understanding of the nature of science, an aspect of scientific literacy, which is the goal of modern science education. To accomplish this, the differences and similarities by gender and major. on college students' understanding of the nature of science were investigated. 'Understanding of the Nature of Science' developed by Lee (2003) was implemented for this study. The instrument has three sub-scales; a scientific world view, scientific inquiry, and scientific enterprise. The instrument is only expected to give, and provides meaningful information on student understanding of the nature of science. A total of 120 college students, majoring in science education, liberal arts, and physical exercise participated in this study. Science education major students were verified to have a better understanding of the nature of science followed by liberal arts students and then physical exercise students. Moreover, men revealed slightly more comprehension that of women. More than 80% of students, majoring in science education, answered 11 out of 23 questions, approximately 50%. In the area of scientific inquiry, both science education and liberal arts students showed more comprehension that those in physical exercise. All participants showed relatively lower comprehension of the definition of scientific contribution than other subjects, but displayed a greater comprehension of the ethics of science. On the other hand, most students have relatively low apprehension in the contribution of science, while higher apprehension in the ethics of science.

• Journal of Korean Ophthalmic Optics Society
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• v.14 no.4
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• pp.89-96
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• 2009

Purpose: This study was to investigate and analyze understanding and knowledge of the eye in biological science education for middle and high school students in Busan. Methods: A total of 821 middle and high school students from four different schools participated by self-administered questionnaire test. The results were compared and analyzed by grade and gender. Results: In the survey of the understanding about the eye in the biological science curriculum, the results indicated that the more learning of the eye in biological science lecture led to the more understanding of the role of the eye. The difference of understanding the eye between learned and unlearned students in biological sciences lecture was significant (p<0.01). In the survey of the knowledge of the eye, students did not know about myopia and astigmatism (average value <50). Conclusions: As biological science education is one of the major factors to understand the role of the eye, this result suggests that more information about the eye in the curriculum of biology is included.

• Journal of the Korean Society of Earth Science Education
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• v.6 no.3
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• pp.165-173
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• 2013

This study was to analyse the understanding of the concepts of science based on the 6th graders' levels of logical thinking in elementary schools. To achieve the goal of this study, logical thinking test was given to 108 6th graders of elementary school and 32 students were interviewed. The result of this study was as follows. First, 61.1% of students were in concrete operational period in their logical thinking, 27.8% were in their transitional period, and 11.1% were in their formal operational period. By using Flow-Map, 32 students were analyzed and their levels of logical thinking was significantly associated with their understanding of concept. Students' flexibility of cognitive structure was significantly associated with logical thinking and the levels of understanding concepts as well. However, misconception didn't show significant association with levels of logical thinking. Second, the characters of understanding of scientific concept by their levels of logical thinking was that as you get higher levels of logical thinking, their cognitive structure to understand concept was more systemized, in order and more logical. The result of this study suggested the followings in science experiment class. First, 6th graders of elementary schools had various levels of logical thinking and that affected to their understanding of scientific concepts. Therefore, lesson planning and class should be done by reflecting their different levels of logical thinking. Second, since they had different levels of logical thinking, various teaching methods should be utilized to make students understand scientific concepts more systematically.

• Journal of The Korean Association For Science Education
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• v.29 no.4
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• pp.414-422
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• 2009

In this study, we investigated the influences of students' motivational characteristics on the processes of learning density concept using a discrepant event. The participants were 642 seventh graders from two middle schools. Tests of failure tolerance, self-efficacy and mastery/performance goal orientation were administered as pretests. A preconception test was also administered. The intervention was the students' individual study of the density concept with a worksheet that was designed to incorporate the major steps of conceptual change learning. The tests of attention, effort and conceptual understanding were administered as post-tests. The responses of 203 students who had been found to possess the target misconception were analyzed. The results of a path analysis revealed that students' motivational characteristics variables did not influence cognitive conflict. Failure tolerance and mastery goal orientation, however, influenced conceptual understanding via situational interest, attention and effort. Self-efficacy influenced conceptual understanding via effort. Performance goal orientation negatively influenced conceptual understanding via attention and effort. Cognitive conflict influenced conceptual understanding directly as well as indirectly via situational interest.

• The Korean Journal of Community Living Science
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• v.12 no.2
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• pp.1-14
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• 2001

This study was performed to explore the adolescents\` conception and practice of Hyo(filial piety). Fifteen teams of 500 adolescents were allowed to discuss about Hyo for two hours and the team leaders presented what they had discussed. The subjects were 330 elementary school students, 130 middle school students, and 40 high school students. The findings from the discussion and presentation were as follows: First, the adolescents\` conceptions of Hyo were different in the stages of schools. Elementary school students thought that they should do Hyo because they got lots of mercy from parents. Middle and high school students both thought that Hyo came from mutual(parent-children) understanding, but they showed somewhat different view about what disturbed the mutual understanding. Middle school students pointed the deficiency of parents'self-disclosure as a disturbing factor while high school students pointed the deficiency of adolescents'understanding of their parents. Second, the behavioral items that the subjects suggested as Hyo were analysed by the 12 Subvirtues of Adolescent's Hyo which was classified by Chung et al.(1996a). Adolescents could not propose any behavioral items for Thanks, Ancestor Worship, and Ecological Equilibrium, and some items for Advising Parents and Thrift. A lot of items were suggested for Moral Training, Supporting (Parents), Consorting (Parents), Respecting (Parents), Establishing Oneself, and Following Parents.

• The Journal of Korean Academic Society of Nursing Education
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• v.16 no.1
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• pp.61-71
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• 2010

Purpose: This study aims to understand the meaning of happiness among undergraduate nursing students through small group art works. Method: A qualitative study design was utilized. Data were collected from the students' clinical experiences and were analyzed with qualitative content analysis. The texts were a collage and related essays written by 36 senior nursing students about the impressions on happiness through small group art works. Result: There were three categories and sixteen themes classified. The three categories that emerged were definitions of happiness, feelings about happiness, and attitudes toward happiness. First category includes seven themes: hope, youth, balance, values, life, self-consciousness and companionship. Second category includes five themes: pleasantness, joy, preciousness, conflict, and disappointment. The third category includes four themes: doing something to be happy internally, doing comprehensive nursing care as a professional nurse, understanding that physical splendor isn't requirement for happiness, and letting everyday life be faithful. Conclusion: The results of this study may affect the students‘ major in human service area of understanding about the nursing students’ genuine happiness or human flourishment.

• Hwankyungkyoyuk
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• v.19 no.1 s.29
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• pp.104-115
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• 2006

This study was conducted to investigate whether attitudes and recognitions of middle and high school students regarding environmental concerns were improved after anuran call monitoring. It was a step toward monitoring local environmental changes with anuran calls. Three-striped pond frogs (Rana nigromaculata), Bullfrogs (R. catesbeiana), and Narrow-mouthed toads (Kaloula borealis) were surveyed to determine local abundance and distribution of them in 12 study sites using their advertising calls. A published booklet, which contains morphological, physiological, ecological, and acoustic information on amphibian species and methods of monitoring anuran calls were provided to monitoring students for identifying the three species. Pretest-posttest were conducted before and after monitoring from 10 April to 28 August in 2005 to determine how the monitoring students changed their attitudes on environmental issues, increased knowledges on amphibians, and improved the understanding on the cause and effect of declining amphibian populations. The amphibian monitoring program was effective to improve the students' attitudes towards conserving environments as well as the students' knowledge on general behavior and ecology of various amphibian species although their understanding about various environmental problems was not. In addition, the program increased the students' understanding on the problems of declining amphibian populations.