• Journal of the Korean Society of Earth Science Education
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• v.4 no.1
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• pp.32-42
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• 2011

The purpose of this study is to provide meaningful basic materials for organizing a science curriculum in future by analyzing the status and changes of contents about astronomical phenomena in textbooks according to the changes of the science curriculum of elementary school. A main target of analysis is science textbooks of elementary school in curriculums from 1st to 7th. For the analysis, the analytic frame based on contents in astronomy textbooks of teachers colleges and colleges of education was used. The result of the analysis is as in the following. First, astronomy accounted for average about 7% of all pages of textbooks in all of science curriculums. The 1st educational curriculum had the most learning quantity of 10.40%, and the 6th curriculum had the least quantity of 4.39%. These results show that astronomy was not a small part and was considered important in each science curriculum of elementary school considering that earth science accounted for 17-26% of all pages in elementary school science curriculum. Second, the things that have been dealt with in common in all science curriculums from 1st to 7th of elementary school are the shape of the earth, the rotation and the revolution of the earth, the occurrence of the seasons, the apparent motion of the sun, the status and motion of the moon, the movement of a star, the brightness and distance of a star, constellations, the sun, planets and others. These contents are expected to be dealt with continuously as basic contents to organize astronomy regardless of the changes of curriculum. Third, in science curriculum of elementary school, astronomical phenomena based on life experiences regarding the earth, the moon and the sun are mainly dealt with in the first and the second grade. Contents requiring principles-understanding and research are dealt with in the fifth and sixth grade. These results show that elementary school science curriculum dealing with astronomy reflects the developmental stages of students and considers principle of learning possibility.

• Journal of The Korean Association For Science Education
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• v.10 no.2
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• pp.39-47
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• 1990

The purpose of this survey is to investigate the status on attitudes toward science among the elementary school students in Korea. The attitudes toward science were measured with TOSRA(Test of Science-Related Attitudes) Which was developed by Fraser, B.J.. This survey were male 963 elementary school students of $4^{th}-6^{th}$ in Seoul and Kyeong gi Province as an object. The major findings of the study are as follows: 1. The overall attitudes toward science of measured elementary school students shows a positive tendency. 2. Male students exhibited significantly(p<0.001)more positive attitudes toward science than females. 3. There were no differences(p<0.05) between the students in Seoul and Kyeong gi Province in attitudes toward science. 4. Attitudes toward science of elementary school students in this population steadily declined from grade four to grade six. The sharpest decline was seen at grade six.

• 대한생식의학회:학술대회논문집
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• 2006.06a
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• pp.154.1-154.1
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• 2006

• Proceedings of the Korean Society of Life Science Conference
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• 2006.09a
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• pp.117.1-117.1
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• 2006

• Proceedings of the Korean Vacuum Society Conference
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• 2001.02a
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• pp.89-89
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• 2001

• Proceedings of the Korean Vacuum Society Conference
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• 2001.02a
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• pp.82-82
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• 2001

• Polymer Science and Technology
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• v.22 no.4
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• pp.320-329
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• 2011

• Journal of Korean Elementary Science Education
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• v.29 no.2
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• pp.155-165
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• 2010

The purpose of this study is to look into self-concept and teaching anxiety of elementary school teachers about inquiry instruction in science class, and investigate correlations among them. For this study, the survey was carried out on 338 elementary school teachers, and the interview was conducted with 5 of them. The results of this study are as follows; Self-concept of elementary school teachers about inquiry instruction in science class was more positive than usual. And the teachers who were male, older and majored in science education showed more affirmative self-concept about inquiry instruction in science class. Teaching anxiety of elementary school teachers about inquiry instruction in science class was less than usual. And the teachers who were male, older and majored in science education showed less teaching anxiety about inquiry instruction in science class. The correlation of self-concept and teaching anxiety of elementary school teachers about inquiry instruction in science class was an negative interrelation. This presents that the teachers, who have more positive self-concept about inquiry instruction in science class, have less teaching anxiety than those who have more negative one. Consequently, teacher training and retraining programs should be developed and conducted by grasping teachers' self-concept and their anxiety, to reduce anxiety about inquiry instruction in science class.

• Journal of the Korean Society of Earth Science Education
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• v.4 no.2
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• pp.142-150
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• 2011

This study is aimed to offer the elementary school teacher's experience and awareness about science field trip and science museum field trip, by analyzing the survey of 867 students and 81 teachers in Seoul. Research shows 67.9% high figure of elementary school teacher's experience on science field trip. That experience is include 61.8% of science museum using experience. In case of elementary school teacher's pre-activity is only 53.1% and most of them was visiting Website. Post-activity is more than preceding activity(74.1%) but method is too simple like checking work sheets. 62.3% of elementary school students have been to science field trip and science museum that is higher than teachers'. 66.5% of students said science field trip is influence on science study in good ways but there are some difficulties like lack of pre-activity(33.0%) and unkind information about science museum(21.9%). For activation of science field trip, resources development for effective science field trip operating, program development for pre- and post-activity, school group science field trip program development which is linked science curriculum, complement and expand activity information of science field trip institution.

• Proceedings of the Korean Society for Food Science of Animal Resources Conference
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• 2006.05a
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• pp.179-183
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• 2006

Denaturing high-performance liquid chromatography(DHPLC) is used in a wide variety of genetic applications and is an efficient method for detection of mutations involving one or a few nucleotides. We developed a high-throughput DHPLC method for identifying polymorphisms in the MC1R gene that are characteristic of Hanwoo cattle. We compared 10 tissue samples from Hanwoo cattle, 10 samples from Holstein cattle and 10 samples from Hanwoox Holstein crossbred cattle to determine whether DHPLC analysis can be used to distinguish between these genotypes. Samples obtained from Hanwoo cattle had a unique profile of peaks that could be used as a molecular fingerprint for this breed. We also analyzed two hundred samples in a trial in which we were blinded to the genotype of the samples and correctly identified the breed-of-origin of 594 out of 600 sequence variations(99%).