• Journal of The Korean Association For Science Education
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• v.4 no.1
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• pp.44-56
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• 1984

There haw been some courses related to science education for the graduate students, but almost the study for no instructional model and reading material development haw been pursunded in Korea. This study intended to discuss the discipline character of science education research for the systematic survey of concepts, principles and theories related to science education as the first put task, and designed an instructional model of the introductory survey course of science education at graduate level, and then proposed a developmental plan of a reading material for the course teaching aid. The main work of the study was to survey the foreign literature, but the subjective analysis of researcher's courses work during graduate study in abroard and some courses offered to undergraduate and graduate students in Korea by this researcher was quite helpful, even though which was not a strictly designed experimental research. Later it was found that this kind of study was not fitted to the traditional research style but worth while to try for the research in and teaching of "science education" as an area of discipline and professional activity.

• Journal of The Korean Association For Science Education
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• v.5 no.1
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• pp.19-34
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• 1985

Teaching inquiry process is one of the most important objectives in science education. To promote students scientific process skills, a science teacher should encourage the students do something by themselves. One method for that purpose which has been used in many schools would be group experiment. The researcher has been experienced a lot of difficulties in controlling or guiding every group to finish the assigned experiment within the given class hour. Therefore, the researcher decided to select several leaders from students and trained them in advance of the given class hour. This leaders are expected to guide the remaining students in the class. As the result of this study, the classroom with and without student leaders showed very significant difference(P>0.001) in their achievement of scientific process skills. The experimental group also showed more positive attitude toward science. The researcher concluded that the use of student leaders is very effective in promoting scientific process skills. This method is also regarded very effective in a large class sized like Korean Schools.

• Journal of The Korean Association of Information Education
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• v.9 no.1
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• pp.69-76
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• 2005

The researcher conducts the following research to correctly identify the gifted children of science information. First, the researcher makes sufficient theoretic research on gifted children for the sake of definition and identification of the gifted children of information science, and reconstructed the identification principles, factors and procedures of the gifted children of information science on the basis of those of the gifted children of math and science the theories of a number of scholars and presented new methods of identifying new gifted children of information science. Second, the researcher set the identification procedures of the gifted children of information science and the relevant content and conducted the identification of gifted children through the observation and evaluation of sixth graders through three stages. Third, the researcher compares and analyzed the selected gifted children based on the identification procedures and ordinary groups of students excellent in math and science in terms of task achievement and looked into validity.

• International Journal of Computer Science & Network Security
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• v.23 no.2
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• pp.227-236
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• 2023

The research aims to identify the degree of the organizational citizenship, satisfaction and performance quality of the teachers and relationship between organizational citizenship, job satisfaction and performance quality for physical education teachers . The researcher used the descriptive method, The participants were (195) teachers. The researcher conducted the research main study in the period from 05/12/2022 to 30/12/2022 use the website to distribute and collect the questionnaire: https://www.surveymonkey.com. The researcher used the computer in the statistical processing, using the SPSS statistical program, and the following methods: Mean, SD, percentages, Correlation Coefficient, Alpha Cronbach coefficient, differences Indicator using chi² . Conclusions: There is high degree of organizational citizenship behavior practices, job satisfaction and performance quality for some teachers at the schools. Recommendation the importance of enhancing the organizational citizenship behavior in schools, according to the positive effects of these behaviors on the individual and group performances.

• Journal of the Korean earth science society
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• v.42 no.5
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• pp.588-603
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• 2021

This study details a researcher's self-study journey in advancing from a computational thinking (CT) novice to an expert. The researcher went through a four-stage process, with a preliminary literature review preceding the four stages. From the literature review, the computational thinking analysis (CT_AT) tool was developed for use in stage one to analyze science, technology, engineering, art, and mathematic (STEAM) modules. Although no discernable patterns were found in analyzing the five science and five engineering-based modules, the analysis revealed which CT practices were missing or weakly exposed. In stage two activities were suggested to promote these missing or weakly exposed practices. Stage three required the researcher to develop his own STEAM module from the viewpoint of exposing students to CT. The fourth stage was to validate the CT_AT through interviews with pre-service and in-service teachers. These interviews led to changes in the CT_AT tool and, as a result, the researcher produced a guidebook that could be used by teachers in their own CT studies. This guidebook can be used by teachers to develop and become competent in CT skills.

• Journal of the Korean Society of Earth Science Education
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• v.8 no.1
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• pp.98-113
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• 2015

The purpose of this study was to explore how science docents developed their expertise in the context of situated learning where two experienced docents played roles of mentors. Two experienced docents as mentors and six participating docents as mentees interacted in the community to develop exhibition interpretation strategies to be more professional in interacting with visitors through the workshops developed by the researcher. To figure out how docents developed their expertise in exhibit interpretation, the researcher collected the data from docents through observation, artifacts, and interviews as well as surveys. The result of this study included that participating docents formed new perception about scientific inquiry as well as scientific literacy and they developed professional skills of planning, implementing, and reflecting of exhibition interpretation in the context of situated learning, where docents formed alliance one another. It is recognized that participating docents' passions to be professional in exhibition interpretation and two experienced docents' wills as mentors made dynamic interaction in pursuing the same aim of docents' expertise in exhibition interpretation.

• Journal of The Korean Association For Science Education
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• v.15 no.2
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• pp.164-172
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• 1995

In this study, the researcher tried to find out the effect of using a computer interface in teaching speed concept in the elementary school. The 4th and 5th pupils were sampled for this study. The school is located in a sub-urban agricultural area in Korea. In the study, the subjects were divided into two groups: experimental and comparison group. From the pretest, two groups did not show any difference in the understanding of speed concept. The computer interface and the programs to operate the interface and data analysis were developed by researcher. The interface is a modular type and designed ready to connect to microcomputer. The test items were consisted of (1) comparison of speed, (2) change of motion, (3) acceleration, and (4) deceleration. As the result, the researcher found the following results: 1. In case of speed comparison, no significant difference was found between experimental and comparison group. 2. In case of change of motion, acceleration, and deceleration, the experimental groups showed higher achievement both in 4th grade and 5th grade. However, the 4th graders showed more learning than the 5th graders. In conclusion, this study showed that the use of computer interface seemed to be very effective in teaching and learning speed concept in elementary school.

• Journal of Radiation Industry
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• v.4 no.3
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• pp.239-246
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• 2010

The aim of this study is selection of the male-sterile plant for inhibiting transgene flow through gamma-irradiation ($^{60}Co$) at the pollination and fertilization cycle of herbicide-tolerant genetically modified (GM) zoysiagrass (Zoysia japonica Steud.). High frequencies of plant mutations were obtained about 18% from $M_1$ generation at the doses (10 to 50 Gy). We also found that some $M_1$ plants showed male-sterile plants using de-husked seeds and comparison of stainable pollen using $KI-I_2$ solution. Besides the effects of irradiation on pollination and fertilization cycle, various other mutations like dwarf, cold tolerance, increasing grains and mass were observed. Four of dwarfism plants were selected through comparison of morphological characteristic between control and mutants during 4 years. These results demonstrated that the gamma-irradiation on pollination and fertilization cycle is very effective to induce the various mutations, and the male-sterile mutants are useful for controlling transgene flow and developing of high quality turfgasses.

• Journal of The Korean Association For Science Education
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• v.11 no.1
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• pp.117-126
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• 1991

The new movement in science education in America and Europe has been heavilly oriented into technological and soceital aspect of science since 1970. However, this spirit has not been well informed in Korea and not adapted in science education. This paper aimed to arouse Korean science educators attention to everyday situation as a science education context. In this paper, the discipline centered science education was briefly reviewed and problems related to the philosophy was pointed out. At the same time the researcher introduced STS context as a science education objective, and elaborated the three elements(physical situation, technological situation. and societal situation) of the context. In the paper, the advantages of the use of everyday context in science education were examined. THe advantages were analysed in terms of the nature of science, learning psychology, integrated science, and societal aspect of science education. The paper also suggested the criteria to select teaching materials from STS context. The suggested criteria were the degree of science concepts involvement, frequency of experience, strength of experience, and possibility of direct experience.

• Journal of Korean Elementary Science Education
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• v.19 no.1
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• pp.57-69
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• 2000

The purpose of this study was to seek desirable direction of science teaching and to present meaningful ideas for implementing the science curriculum and teaching materials by measuring the degree of the students' understandings on science and comparing it with those of American students. The researcher comprised 790 primary and middle school students for the study and administered them questionnaires developed by Trowbridge, Bybee, and Sund. The questionnaires were analyzed along with three categories such as science method, science theory, and the achievement of scientists. The researcher used t-test and ANOVA in order to compare the difference of their understandings in accordance with grades and gender, and later compared Korean students' understandings with those of similar aged American students administered by the National Assessment of Educational Progress (NAEP) The research loathed to the overall conclusions as follows; Both primary and middle school students' understandings on science revealed positive and appeared no significant difference in gender. And it is thought that science education was being carried out hopefully to enhancing Korean students' scientific literacy, therefore, science teaching like what is implemented to the classrooms currently should be kept on in future. On the other hand, it is necessary to change primary school children's understandings on attitude and value of scientists while to change middle school students' understandings on scientific processes by experiment. Also primary school children need to understand that scientists are willing to change their ideas when new information becomes known.