• Journal of the Korean earth science society
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• v.43 no.3
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• pp.351-366
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• 2022

We investigated the kinematic activity of the Type II Seyfert galaxy Mrk 1 based on H𝛽 and [O III] 5007 extracted from the MR 1 grism spectra observed with the OASIS attached to the CFHT 3.6 m telescope. The [O III] forbidden Gaussian line profiles exhibited asymmetric features with an excess of the blue component: (1) strongest at a distance of about 960 pc from the galaxy center, and (2) a wider line width of about ~900 km s^-1 in the NS direction of the center. The velocity distributions in the spectral images showed blue or approaching flow motion in the NE zone, while receding in the SW zone, implying the counter-clockwise rotation. The radial velocity data showed that the center of the AGN region appears to be blocked by gas-dust approaching toward the Earth.

• Journal of The Korean Association For Science Education
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• v.22 no.1
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• pp.40-53
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• 2002

This study was based on the analysis of earth and environmental science items in PISA 2000 data. The purpose of this study was to identify i) gender differences in scientific literacy, ii) item characteristics that favored either female or male, and iii) misconceptions that 15-years-old Korean students have in the field of earth and environmental science. The results revealed significant gender differences. Overall, male students demonstrated higher level of achievement than female students. On the other hand, amongst high ability students, female students outperformed male students in open-constructed items. Female students tended to score higher on items that required long answers or items related to scientific processes, whereas male students outperformed female students in science knowledge or items that required data interpretation. The study also revealed that a majority of Korean students had misconceptions in fundamental earth and environmental science knowledge, such as the direction of earth's axis and equator, and the causes of Greenhouse Effect.

• Journal of the Korean earth science society
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• v.33 no.2
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• pp.183-199
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• 2012

Previous Earth Science textbooks have mostly lacked the latest astronomical phenomena frequently being reported in mass media such as popular science magazines. One of the main directions in the revision of the 2009 National Curriculum of Korea is to actively include those phenomena. Furthermore, despite a close link between astronomy and physics, the concept of modern physics has not been actively introduced in Earth Science textbooks and at the same time the linkage of physics to astronomy has rarely been studies in physics textbooks. Therefore, the concept of integration among different fields in science is emphasized in the new National Curriculum. Transient phenomena in the high energy astrophysical objects are examples that reflect such issue. The purpose of this study is to introduce transferring a real-time data and making imaging of astronomical observations using e-Science. As a first step, we performed the first experiment for a large data transfer of astronomical observation between Korea and Japan using KOREN, a National Research and Education Test Network. We introduce actively on-going fields of e-Science in observational activities of astronomy and astrophysics, and their close interrelationship with scientific inquiry activities and public outreach activities. We discuss our experiment in the scientific and educational aspects to the primitive e-Science activity in the Korean astronomical society and, in turn, provide a prospective view for its application to the scientific inquiry activities and public outreach activities in the upcoming commercial Gbps-level internet environments.

• Journal of Korean Elementary Science Education
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• v.18 no.2
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• pp.131-144
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• 1999

This study investigates the pre-service teacher trainees' reactions to and evaluations about the earth science teaching method that utilizes songs. The subjects of the study were 81 university students in teacher training institutes for primary schools and secondary schools. The researcher used songs which the subjects judged to be reflecting some of the natural phenomena related to the earth science. The teacher trainees were taught some of the earth science concepts with the help of the selected songs. Discussions about the possibilities of the songs as an ai d to science teaching were also encouraged. The teacher trainees demonstrated positive reactions to the teaching method, and expressed their intention to use songs in their future teaching. The method also inspired the trainees to be inquisitive in their everyday life and seek other effective teaching methods.

• Journal of the Korean earth science society
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• v.27 no.3
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• pp.269-278
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• 2006

In this study, we used Virtual Reality (VR) materials on an introductory earth science course consisted of thirty six pre-service science teacher program students. Before and after class an instrument of Constructivist Learning Environment Survey (CLES) was administered. The main focus of the CLES was to evaluate how the classroom was prepared for student centered learning environment. The pre and post tests of student perceptions regarding their learning environment were compared in six domains: personal relevance, critical voice, shared control, student negotiation, scientific uncertainty, and attitude. Questionnaire regarding the general perception of the VR materials was administered as well. How future science teachers valued the use of VR materials in their classrooms was found from this study. Based on these results, we intend to contribute for a more complete understanding of the potential of VR materials in achieving better learner-centered classroom environment.

• Communications of the Korean Institute of Information Scientists and Engineers
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• v.17 no.11
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• pp.11-16
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• 1999

• Communications of the Korean Institute of Information Scientists and Engineers
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• v.23 no.11 s.198
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• pp.70-76
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• 2005

• Journal of the Korean earth science society
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• v.30 no.6
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• pp.773-786
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• 2009

Recently, the connection between science museum and school science curriculum has been emphasized, but the frameworks for evaluating school science curricula are insufficient in terms of how much of school science curriculum was reflected and attained. The purposes of this study are to develop a framework that can be utilized to evaluate levels of curriculum that are reflected and attained in the texts of exhibition panels displayed in science museums. We developed an evaluation tool based on the frameworks used to assess students' achievement in the secondary school curriculum, and we used the tool to measure the reflection and attainment levels demonstrated in the texts of exhibition panels about earth science contents of secondary school curriculum in three science museums located in Chungcheong-do, central part of Korea. Findings showed that the levels of reflection and attainment of secondary school curriculum in exhibition panels about earth science contents in science museums were measured 38.7% and 2.82 points out of 5.0respectively. We hope that the evaluation tool used in this study could be utilized to measure the levels of reflection and attainment of secondary school science curriculum demonstrated in the text of each of exhibition panels in science museums.

• Journal of The Korean Association For Science Education
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• v.22 no.2
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• pp.276-285
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• 2002

In this study the concepts for science learning of physics and earth science presented in the seventh grade science textbooks for the seventh national curriculum of Korea approved by the ministry of education were analyzed in terms of the concrete and formal concept level. The parts of textbook analyzed for science learning consist of three sections in physics such as light, force, and waves, and three sections in earth science such as the structure of the earth, the substance of crust, and the movement and composition of the ocean. The analyzed results showed that the number of scientific concepts were differed from 54 to 74 in physics and from 86 to 120 in earth science depending upon publishers. In general, the concepts for science learning in the physics were found to be more in the formal level than the concrete level. However, the concepts for science learning in earth science were found to be more in the concrete level than the formal level. The analyzed results suggest that the concepts of science learning should be considered the learner's cognitive level and the sections should be disposed depending on the degree of difficulty for writing the science textbook. Therefore, it seems to be important to review carefully whether the textbook meets the object of the seventh curriculum of Korea during the process of the investigation for the science textbook.

• Journal of the Korean earth science society
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• v.27 no.4
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• pp.401-415
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• 2006

The science education reforms put the emphasis of scientific literacy, so that students can understand how scientific knowledge is constructed through scientific inquiry at schools. However, scientific inquiry at schools has a problem as a cookbook system without the opportunity of developing argumentation, where students could understand how they use evidence to support their theory or vice versa. Teachers are supposed to understand the basic elements, purpose, and definition of scientific inquiry to implement authentic scientific inquiry at schools, then develop the instructional strategies of providing the opportunity of scientific argumentation to meet its needs.