• East Asian mathematical journal
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• v.35 no.2
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• pp.217-237
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• 2019

This Modeling is a cyclical process of creating and modifying models of empirical situations to understand them better and improve decisions. The role of modeling and teaching mathematical modeling in school mathematics has received increasing attention as generating authentic learning and revealing the ways of thinking that produced it. In this paper and interactive lecture session, we will review a subset of the related literature, discuss benefits and challenges in teaching and learning mathematical modeling, and share our attempts to improve traditional textbook problems so that they can become more authentic modeling activities and implications for instruction and assessment as well as for research.

• The Research Journal of the Costume Culture
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• v.6 no.2
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• pp.77-91
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• 1998

The present study collected and analyzed the Korean's folk-belief related to Koran traditional costume culture which are handed down from ancestor and are known to present Korean society as of 1990's. The purpose of the present study is to understand emotion and the view of Korean people, and to understand the social roles of the costumes in Koran traditional society more deeply and more comprehensively. The study was conducted by document analysis and interview. The results of the study are summerized as follows: Folk-belief related to spinning(gilssam), sericultural industry and weaving are mostly enduced from the hope for god quality of work and acquisition of good skill of weaving. There has been also a belief hat gilssam has a magic power to easy delivery and fecundity. Most Folk-belief of taboo related to clothing constraction proposed to people pay great care while they are sawing. Some ways of management of clothing has been related to the manners of which are associated with the differentiation between high and low level and predominance of men over women that was originated fro m confucianism. Socks(busun) and shoes are also considered to have magic power to prevent from exorcism and demon of ill health. This study suggests that folk-belief give us the wisdom a guideline and lessons for better life, high quality arts and techniques which are handed down from ancestors. Therefore, folk-beliefs having a great value, non-shaped treasures of traditional culture heritage should be collected as many as possible, recorded, and preserved.

• Korean Journal of Child Studies
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• v.25 no.3
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• pp.101-113
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• 2004

The purpose of this study was to compare young children's daily activities in the preschools of two different child-care approaches, i.e., project and traditional approaches. From two preschools. 20 children (M=71.3 months) were observed for 3 consecutive hours. The observers followed the target child, gathering data during 30-second "windows". The window was open every 2 and half minutes. To test the differences between two preschools, phi coefficient tests were used. Results showed that children of traditional approach were more exposed to and engaged in academic activities than those of project approach. In specific, children of traditional approach were more involved in academic and skill/nature lessons. A reverse tendency, however, was found in play activities. Children of project approach were more exposed to and engaged in play activities, especially in play with academic objects. And they were more exposed to conversation with their teacher than their counterparts. Children of project approach also showed more initiatives in their play activities.

• Journal of Korean Medical classics
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• v.26 no.1
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• pp.55-63
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• 2013

Objective : Nursing system in traditional society depended on more private service in family than public service. In Chosun dynasty, there were several books mentioned private nursing srvice to author's family. Method : We tried to find out mentions in books above and analyze them by point of nursing services. Result : In Nehoon nursing was considered as a view of royal family services, in Gyenyeoseo as a view of neo-Confucianism, in Gyubanggasa as a view of obedience to parents and in Gyuhapchongseo there were lessons to author's daughter and in-laws about private nursing. Conclusion : In traditional society, women's activities were limited. However, there were several roles, especially private nursing services to their family through this bibliographical records.

• Research in Mathematical Education
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• v.22 no.1
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• pp.1-17
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• 2019

This study aims to examine changes in teaching and learning conceptions and sense of efficacy as well as relationships between them. Data were collected from 121 Korean preservice teachers before and after a 4-week teaching practicum. The results indicated that constructivist conceptions of teaching and learning increased over the practicum period and teacher efficacy shifted as well. In addition, correlations among the constructs were strengthened over the practicum period. Interestingly, constructivist conceptions related to differentiated education were not significant, while traditional conceptions related to teacher-guided lessons were significant after the practicum. These results imply that Korean preservice teachers still place value on the traditional perspective, even though constructivism dominates the current educational policies of Korea.

• Journal of the Korean earth science society
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• v.29 no.2
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• pp.140-150
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• 2008

In this study, a new teaching model was developed using concept maps and applied to the Earth Science I unit on diastrophism. We analyzed the effects of this model on students' scholastic achievement, ability to construct concept maps, and attitudes towards concept map lessons, in comparison to traditional teaching methods. The data was sampled from 128 second-year male high school students in Gyunggido, Korea. Although the results are not statistically significant, the new teaching model seems to have contributed to an increase in scholastic achievement as opposed to the traditional teaching models. We also found that the students to whom the new teaching model was applied showed both significant and positive effects in terms of scholastic achievement, the ability to construct a concept map, and changes in attitudes towards concept map lessons.

• Journal of Korean Elementary Science Education
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• v.33 no.2
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• pp.352-363
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• 2014

The purpose of this study was to develop a proper teaching strategy to raise students' interests and creative problem-solving ability in science. And the result of applying this developed teaching strategy to elementary science lesson were compared with that of traditional science lesson. For comparison, two classes of $5^{th}$ grade in S elementary school in B city were selected. After pre-test, one class, experimental group, took a science lesson applying developed teaching strategy and other class, comparative group, took a traditional science lesson. After respective lesson, two classes did post test. The results of this study can be summarized as follows. First, IAAI(Interest-Activities-Attainment-Initiation) teaching strategy was developed. IAAI teaching strategy was composed of 4 stages which were (1)interest in science, (2)science experiment activities, (3)attainment to science knowledge, (4)initiation of creative thinking and 4 stages were progressed in serial order in science lesson. Second, after lessons, the experimental group achieved higher mark in the test of science academic achievement than the comparative group and it was statistically meaningful difference. Third, after lessons, the experimental group was more improved in science-related attitudes than the comparative group and it was statistically meaningful difference. Fourth, after the lesson, the experimental group was more improved than the comparative group in the creativity test and the difference was statistically meaningful.

• Journal of Korean Elementary Science Education
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• v.22 no.2
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• pp.149-155
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• 2003

The objective of this research was to study the impact of metacognitive lesson models on the formation of magnetic field concepts. The subjects of this research was eighty students from two sixth grade classes. One class of forty of these students was the experimental group, which the metacognitive strategic lesson model was applied, and the other class of forty students was the control group which the traditional lessons were conducted. As the result of the experiment, the experimental group and the control group, which previously did not show difference in terms of achievement of conceptualizing magnetic field, displayed a significant difference. According to the comparison between the pre-experiment test on the students' previous concepts and the achievement of the students after the experiment, the middle group showed difference between the experimental group and the control group in a small degree. The lower group showed a notable difference between the two groups and the higher group showed no difference. In terms of achievements shown in different questions asked, there was little difference in the questions that were stated in the textbook while there was a significant difference in the questions that applied the contents of the textbook. The higher academic group, according to the test on the previous concepts, did not show much difference between the experimental group and the control group when they were asked about the concepts of the textbook. In terms of the comparison in the metacognitive levels, both the higher and lower metacognitive experimental groups' average grade was higher than the control groups' and showed an important statistical difference.

• Journal of Korean Home Economics Education Association
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• v.11 no.2
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• pp.51-63
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• 1999

For Korean education to be able to handle increasing knowledge and new values in the 21st century, it needs to change. Korean education needs various teaching methods. At the present, CAI, multimedia, interact video system and computer communication are being used. Compared to the traditional teaching methods, computer-assisted instructions were reported to be more effective. The students’demands for these kind of lessons are adamant and increasing. In this study, an attempt was made to develop “child-development and parent education”using CAI program. This chapter is in high demand for high school students. This study model was developed help the students’understanding and make their learning easier. A lesson plan was proposed using CAI program which was developed by authors with assistance of professional computer programmers. The CAI program includes following curriculum contents：1. Child development, 2. the meaning of parenthood, 3. pregnancy, 4. delivery, 5. abortion. The CAI program was designed to allow students to participated activity in several current issue related with parenthood and aborting problems. This study ultimately aimed to show students moving pictures, animation, vivid photos, and music to motivate them. Another goal was to help the Home Economics teachers give lessons using CAI and to show an example of the teaching model.

• Journal of Korean Elementary Science Education
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• v.26 no.2
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• pp.171-180
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• 2007

This study analyzed the effect of Human-oriented Alternative Science Activities(HASA) on a coaching teacher and the students who participated in this activity. Human-oriented alternative science activities were used in the experimental group and traditional teaching methods were used in the control group. In pretest and posttest sessions, both groups were evaluated using an academic achievement test, and an affective characteristics related science test. After the activity, questionaries regarding attitudes to science lessons were administered as well. The process of change (if any) which occurred in the science lessons of the experimental group teacher was also analyzed through the teacher's diaries. The results showed that application of HASA had a positive effect upon affective characteristics and attitudes to science classes held by the experimental group and teacher. However, the result of this study also showed that the variation between academic achievement of each group was statistically insignificant.