• Journal of Elementary Mathematics Education in Korea
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• v.18 no.1
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• pp.105-122
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• 2014

In this paper, fraction division algorithms in Korean elementary mathematics textbooks are analyzed as a part of the groundwork to improve teaching methods for fraction division algorithms. There are seemingly six fraction division algorithms in ${\ll}Math\;5-2{\gg}$, ${\ll}Math\;6-1{\gg}$ textbooks according to the 2006 curriculum. Four of them are standard algorithms which show the multiplication by the reciprocal of the divisors modally. Two non-standard algorithms are independent algorithms, and they have weakness in that the integration to the algorithms 8 is not easy. There is a need to reconsider the introduction of the algorithm 4 in that it is difficult to think algorithm 4 is more efficient than algorithm 3. Because (natural number)${\div}$(natural number)=(natural number)${\times}$(the reciprocal of a natural number) is dealt with in algorithm 2, it can be considered to change algorithm 7 to algorithm 2 alike. In textbooks, by converting fraction division expressions into fraction multiplication expressions through indirect methods, the principles of calculation which guarantee the algorithms are explained. Method of using the transitivity, method of using the models such as number bars or rectangles, method of using the equivalence are those. Direct conversion from fraction division expression to fraction multiplication expression by handling the expression is possible, too, but this is beyond the scope of the curriculum. In textbook, when dealing with (natural number)${\div}$(proper fraction) and converting natural numbers to improper fractions, converting natural numbers to proper fractions is used, but it has been never treated officially.

• Journal of Elementary Mathematics Education in Korea
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• v.14 no.1
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• pp.1-22
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• 2010

The purpose of this study was to examine the relationship between teacher's role and interaction patterns in mathematics classrooms. Teacher's role was divided into usual practices with students, usual practices with content and usual practices with students and contents, and interaction patterns were classified into report, inquiry and discussion. The subjects in this study were teachers and students in three fourth- grade classes in T elementary school located in Seoul. After the classes of every math teacher were observed, three teachers who played distinctively unique roles were selected in accordance with the results of the first-semester autonomous supervision, of open class for parents and of the instructional observation. Thus, there was a close relationship between the teacher roles and interaction patterns. And it's concluded that students are able to have a more discussion on each other's ideas in the student-centered classroom, and that teachers should perform active roles in that process. Given the findings of the study, there are some suggestions: First, the teachers appeared to fulfill consistent roles when their videotaped classes, study aids and performance assessment materials were analyzed, and they should play more active roles in mathematics class. Second, they should try to create the kinds of climate that encourages students to come up with ideas in an active manner. Third, earlier studies had focused on student-teacher interaction patterns, but this study found that the roles of the teachers depended on interaction with not only students but study aids and performance assessment materials, and that the interaction patterns hinged on their roles as well. Therefore more profound research efforts should be directed into this issue.

• Journal of the Korean Society for Library and Information Science
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• v.45 no.4
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• pp.103-122
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• 2011

The main subjects of law school curriculum are composed of subjects based on related laws for law schools. The purpose of this study is to analyze the operation of the legal information subject in law schools and law libraries and to propose efficient operation methods on law information services which would be useful to law schools and law libraries. The results of this study are as follows: 1) 22 law schools have legal information research subjects as an essential or fundamental part of their curricula. Also, 2) in 14 law schools(63.6%) law librarians take part in the instruction of law information research subject, while in three law schools(13.6%) librarians do not participate, and in another three law schools(13.6%) outside experts teach them. Finally, 3) the graduate degrees or final majors of librarians participating in instruction are: Library & Information Science(33.3%), Administration(25%), and Law(25%). These results reflect the need for efforts to change instruction systems to team teaching with professors and law librarians, to give law libraries plenty of administrative support, and to enforce the related associations' roles with law libraries.

• School Mathematics
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• v.15 no.3
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• pp.603-617
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• 2013

The major purpose of this article is to examine what kind of gap exists between mathematically gifted students' probability knowledge and the reality actually applying that knowledge and then analyze the cause of the gap. To attain the goal, 23 elementary mathematically gifted students at the highest level from G region were provided with problem situations internalizing a probability and expectation, and the problems are in series in which conditions change one by one. The study task is in a gaming situation where there can be the most reasonable answer mathematically, but the choice may differ by how much they consider a certain condition. To collect data, the students' individual worksheets are collected, and all the class procedures are recorded with a camcorder, and the researcher writes a class observation report. The biggest reason why the students do not make a decision solely based on their own mathematical knowledge is because of 'impracticality', one of the properties of probability, that in reality, all things are not realized according to the mathematical calculation and are impossible to be anticipated and also their own psychological disposition to 'avoid loss' about their entry fee paid. In order to provide desirable probability education, we should not be limited to having learners master probability knowledge included in the textbook by solving the problems based on algorithmic knowledge but provide them with plenty of experience to apply probabilistic inference with which they should make their own choice in diverse situations having context.

• Journal of Korean Public Health Nursing
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• v.18 no.1
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• pp.80-89
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• 2004

This study focused on individual health education for people with hypertension who were being seen in public health centers. The program was an adjusted intervention program that considered the characteristics of each individual and reflected the individual's will to change. Each individual had a different lifestyle with different characteristics and habits so the study considered these individual's characteristics. A comparison was done of knowledge related to hypertension, self-efficacy, and self-care in these individuals. In order to determine the effectiveness of education given by the nurses the variables were measured before and after the individual health education program. The participants in this study were 85 people with hypertension who were seen at a public health center in G city. They were assigned to an experimental group (43) and a control group (42). A tool developed by Park Young-Im (1994) was used to measure knowledge related to hypertension and self-efficacy. A tool developed by Lee Young-Whee (1994) was used for self-care. Data collection was done for 10 weeks from March 24 to May 31, 2003 using interviews with questionnaires. The following is a summary of the results of the study. Hypothesis 1, 'the experimental group which had the individual health education will have higher knowledge scores on hypertension than the control group that did not have the individual health education' was supported (t=4.17, P=0.00). Hypothesis 2, 'the experimental group which had the individual health education will have higher self-efficacy scores than the control group that did not have the individual health education' was supported (t=4.06, P=0.00). Hypothesis 3, 'the experimental group which had the individual health education will have better self-care ability than the control group that did not have the individual health education' was supported (t=4.94, P=0.00). Based on the results of this study, the public health centers should develop an educational program that uses a variety of visual aids and assess the effects of the education on patients with different chronic diseases. After the development of an inclusive education program which will standardize health education effectively and provide a variety of teaching methods, study is needed to measure changes in lifestyle after education and to determine how much knowledge related to hypertension, self-efficacy, and self-care increase

• Journal of The Korean Association For Science Education
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• v.18 no.4
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• pp.473-483
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• 1998

A learner's cognitive conflict with his /her existing conception is regarded to be one of the most important factors for a conceptual change. In this study, the effects of the conflict situation types on inducing students' cognitive conflicts in Newton's law were examined. The thirty-four students of 10th grade were selected from a rural high school based on the result of pre-test. The two different types of conflict situations among many possible types were used in this study. One type was using logical conflict situation and the other was demonstrating real conflict situation. The levels of cognitive conflict were measured by 4-point Likert scale by three interviewers. As the results, the demonstration method was more effective than the logical argument method. In case of the logical argument method, rather than showing scientific conceptions, suggesting another misconception was more effective to the students who have misconception. However, logical argument method was not effective to those who have scientfic conceptions. To the students who have unscientific conceptions, the demonstration method was very effective for inducing cognitive conflict. From the results of this study, demonstration method of teaching seems to be very effective for inducing students' cognitive conflict and overcoming their misconceptions on scientific concept.

• Journal of The Korean Association For Science Education
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• v.33 no.5
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• pp.1041-1054
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• 2013

Big ideas are overarching principles that help students to build a holistic understanding of domain-specific knowledge and assimilate individual facts and theories. This study aims to design a standard-based integrated science curriculum framework based on Big Ideas. The core contents were extracted by analysing the 2009 National Science Standards curriculum of primary and middle schools. Four Big Ideas, 'diversity,' 'structure,' 'interaction,' and 'change,' were generated after the process of examination and categorization of core contents. The scientific facts, disciplinary concepts, and interdisciplinary concepts of every scientific domains included in each Big Idea are represented as a knowledge pyramid. Essential questions guiding the direction of curriculum design were proposed on each Big idea. Based on the framework, teaching modules for 'structure' were developed for grades 5~6.

• Journal of The Korean Association For Science Education
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• v.33 no.5
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• pp.1021-1040
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• 2013

In order to explore the influences of coteaching through mentoring upon the teaching professionalism of beginning science-gifted education teachers, this case study deeply investigated the change processes in the aspects of pedagogical content knowledge (PCK). Two beginning teachers planned, performed and reflected together their science instructions for science-gifted students in secondary school during four 3-hour classes. Since the second instruction, pre-, during-, and post-mentoring were conducted, we collected various data related to teachers' planning processes, videotaped all coteaching science classes, and wrote field notes. We also recorded in-depth interviews with the teachers and the whole process of mentoring. All the data were analyzed by using the constant comparative method. The results of the analyses indicated that coteaching through mentoring positively changed the teachers' PCK. Above all, we found that coteaching and mentoring strategies generated a significant synergy effect through a mutually complementary relationship. The teachers developed deep practical knowledge about the enrichment curriculum, which placed more emphasis on developing cognitive and/or affective characteristics of science-gifted students. The teachers also improved their knowledge about the characteristics of science-gifted students and the instructional strategies appropriate for developing them. Moreover, practical knowledge about assessment domains and methods used in science-gifted education were improved. Knowledge on science content necessary for effective inquiry instruction was also improved.

• Journal of the Korean Chemical Society
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• v.53 no.2
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• pp.189-201
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• 2009

The purpose of this study was to find out whether scientifically creative students were selected as science-gifted class students and whether their creativity improved after class for the science-gifted students by comparing the science gifted class students to general class students in the first grade of high school. This was achieved by comparing science-gifted class students with general ones on creative personality and creative thinking ability. For this study, science-gifted class students and general class students were surveyed using Khatena-Torrance creative perception inventory and Torrance test of creative thinking with words of form A, before and after class for the science-gifted group. The results showed that science-gifted class students scored significantly higher than general class students on the creative personality. However, there was no significant difference between the two groups in their creative thinking ability. Also, in this study, the sub-factors of creative personality and those of creative thinking ability showed very low levels of correlation, which implies that the two variables are highly independent. In addition, science-gifted class students did not show significant improvement in their scores on the creative personality and the creative thinking ability after class. Therefore, further research and development on the selection of science-gifted students and teaching-learning methods which can improve the creativity of these students are needed.

• Journal of The Korean Association For Science Education
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• v.35 no.1
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• pp.85-94
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• 2015

Constructivism gave many implications to science education but at the same time it has brought confusion about its implication to the field of science education. Hermeneutics has possibilities of being able to reduce confusion as well as opening a new horizon. Hermeneutics seeks the meaning of 'real understanding' through the concepts of horizon, hermeneutical circle, and fusion of horizons. Both hermeneutics and constructivism have positive attitude to students' pre-understanding and accept contextualization of knowledge. Thus, they both can criticize traditional teaching method and propose an alternative. Moreover, hermeneutics approaches human understanding holistically with the concept of horizon, and pays attention to the circularity of the process of human understanding. As a result, hermeneutics can open a new horizon and give new discourse to science education and contribute to the development of research and practice of science education.