• Title/Summary/Keyword: geological materials

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Development of Geological Field Courses and Its Application Method for Elementary School Students (초등학교 야외 지질학습현장 개발 및 활용방안)

  • 배창호;김정길;김해경
    • Journal of Korean Elementary Science Education
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    • v.21 no.2
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    • pp.241-252
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    • 2002
  • Field learning have not well performed in elementary school for various reasons, in spite of the benefits of field study. Absence of suitable geological field courses for elementary science education is one of several reasons The purpose of this study is to develop learning materials for the field geology in Hampyeong region and apply them to the geological related units for elementary science education. The 5 observation sites for the field geology learning in study area include various rocks and geological structure such as granite, gneiss, conglomerate, sandstone, mudstone, plant fossil, fold, fault and weathering phenomenon changing rocks to soil. This study area is suitable place for the field geology learning of elementary science education in Kwangju and Chonnam province because of convenience access, fresh outcrops and distribution of various geological learning materials as rocks and structure.

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The Effects of Science Classes using the Geological Materials of a Locality on Academic Achievement and Scientific Attitude of Elementary School Students (지역의 지질 자료를 활용한 과학 수업이 초등학생의 학업 성취도 및 과학적 태도에 미치는 효과)

  • Kim, Hai-Gyoung;Lee, Kyoung-Hak;Na, Kyoung-A
    • Journal of the Korean Society of Earth Science Education
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    • v.10 no.2
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    • pp.173-184
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    • 2017
  • The purpose of this study is to examine the effects of science classes using the geological materials of a locality on academic achievement and scientific attitude of elementary school students. For this study, the class unit is 'stratum and fossils', 2nd semester of 3rd grade, and the geological materials of a locality is applied for class. The geological materials used in teaching and learning of 'stratum and fossil' unit are photographs & video data relating to geological phenomenon, and rock & fossils samples collected in Jeollanam-do province. This study has been aimed at 2 classes 47 students of 3rd grade in G elementary school of G metropolitan. One class 23 students are the research group to apply science class using the geological materials in a locality, on the order hand another class 24 students are the comparison group to apply general science classes. The results of this study are follows. First, a positive relationship was identified between academic achievement and science class applying the geological materials in a locality in the research group. This shows that academic achievement was improved by science class applying the geological materials in a locality. Second, a positive relationship was identified between scientific attitude and science class applying the geological materials in a locality in the research group. This shows that scientific attitude was improved by science class applying the geological materials in a locality. Third, by the results of interview with students who was participated in science class applying the geological materials in a locality, it shows that they have interest and curiosity about local geology. Above results means that science class applying the geological materials in a locality help elementary schools students improve the educational effect about 'stratum and fossils' unit. Thus, it is needed to use the geological materials of a locality in science class relating to the geology units of elementary school science in order to improve academic achievement and scientific attitude of elementary school students.

Determination of Rare Earth Elements in USGS Geological Materials by ICP/AES (ICP/AES에 의한 지질시료 중의 희토류원소 분석)

  • 김정석;최광순;박용준;지광용
    • Journal of the Korean Chemical Society
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    • v.39 no.2
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    • pp.28-81
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    • 1995
  • Inductively coupled plasma atomic emission spectrometry was used for the determination of all 14 rare earth elements (REE) in geological materials. Samples were decomposed by using acid digestion followed by alkaline fusion. Group separation of the REE was achieved by solvent extraction with TOPO (trioctylphosphine oxide) and back extraction into HCl. The results for standard rock sample, AGV-1, showed a good agreement with those obtained by US Geological Survey as well as reported values in other articles.

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Needs and Directions for Developing Localization Materials in Geology in Elementary Science Textbooks : Focused on the Unit of 'Strata and Fossils' (초등과학 교과서 지질 분야의 지역화 자료 개발의 필요성과 방향 : '지층과 화석' 단원을 중심으로)

  • Lim, Sungman
    • Journal of the Korean Society of Earth Science Education
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    • v.12 no.3
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    • pp.184-197
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    • 2019
  • The purpose of this study is to explore needs and the direction for the development of localization data in the geological field of elementary school. Many studies show that geology-related learning is highly effective in the form of direct learning, and It is reported that this learning has a positive effect on students' scientific attitudes. As such, the first-hand experience of the geological learning is outdoor geology learning and is the basis and core of the development of localization materials. However, the analysis of this study shows that the development of outdoor geology learning site is mainly conducted in some regions. In addition, considering that geological sites are distributed evenly throughout Korea, it is necessary to actively develop geological-related localization materials to learn elementary school geology-related units. In addition, some areas where outdoor geological study grounds were developed are composed only of learning places and no specific learning materials have been developed. In this regard, not only geological researchers but also field teachers working in the area need much effort. Development of localization material in the geological field needs to be developed at the level of material presented in the geology unit of the textbook. And in the actual class, it is desirable to use the textbook data and the developed localization data at the same time. In addition, the development of the outdoor geology field should be developed in consideration of the pre-experience-post activities so that learners can have various geological experiences.

A Study on Field Trip of Specific-Region Environment -Focus on 'Geological Unit' of Elementary Science- (특이 지역 환경에 대한 야외 학습 연구 -초등과학 지질 영역을 중심으로-)

  • Hong, Seung-Ho
    • Hwankyungkyoyuk
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    • v.21 no.3
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    • pp.1-12
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    • 2008
  • This study is aimed at suggesting ways to develop field trip or learning materials focusing on environment of Jeju seashore in order to make an effective field trip. To perform these purposes, the contents and concepts were analyzed from environment-related 'geological unit' of elementary science textbook. Afterwards, the places having the geological features in coincidence with them are chosen, and investigated, and these regions can develop into geological teaming places for field trip. Each teaming spot focuses on understanding and finding out the characteristic geological environment of rock shore, gravel shore, sand shore, shellfish shore, and tideland shore among Jeju shores. When field trip is conducted at the preparatory stage, students can get advance knowledge on geological concepts from textbook. The activity record paper is presented at the field trip stage where students observe geological phenomena on their own. After field trip is finished, the summary stage is given to solve some problems on the basis of the observed contents. The developed data from this research have its regional limits, but is surely useful for teachers who try to plan field trip when they especially choose the right field trip spots, or plan to make the process for field trip preparation of the environmental education. Furthermore, with this survey and activities, students can take the chance to improve the learning effect through their own experience on environment of Jeju seashore.

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Asbestos Determination of Some Domestic Building-Materials Using X-ray diffraction (국내 건축자재에 함유된 석면의 함량에 대한 X-선회절분석 연구)

  • Hwang, Jin-Yeon;Lee, Hyo-Min;Oh, Ji-Ho;Park, Gi-Nam
    • Journal of the Mineralogical Society of Korea
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    • v.24 no.2
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    • pp.119-131
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    • 2011
  • The asbestos contents in some representative building materials were analyzed using JIS (Japanese Industrial Standard) X-ray diffraction (XRD) method. The changes in mineral composition during analysis process and problems in JIS method were also examined. XRD analysis of some representative domestic building materials used for roof, wall, ceiling, and floor indicates that slate have the highest asbestos content having 6.87~6.93% of chrysotile. Other building materials analyzed in this study also have 1.35~3.98% of chrysotile contents. The XRD analysis results of asbestos contents in some domestic building materials are presented in this study. This method is very effective for the asbestos content evaluation of building materials according to newly modified asbestos content regulation (Law of Industrial Safety and Health, 2007-26) that limits asbestos content less than 0.1% by Ministry of Employment and Labor. Small amount of tremolite as well as chrysotile were also observed in some samples. With consideration of crystal shape, contents and geological occurrence, it is considered that tremolite is an associated mineral of chrysotile and is not intentionally added. Complemental analyses with optical microscope and SEM/EDS are also necessary because XRD method cannot distinguish asbestiform from non-asbestiform. The XRD method applied in this study is very effective in the asbestos content analysis of building materials, specially building materials showing high asbestos concentration in residues due to the high loss rate with ashing and acid dissolution procedure.

Development and Effects of Virtual Geological Field Trip Program using 360° 3D Panorama Technique (360° 3D 파노라마 기술을 적용한 VFT 개발 및 효과)

  • Kim, Hee Soo
    • Journal of the Korean Society of Earth Science Education
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    • v.8 no.2
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    • pp.193-205
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    • 2015
  • In this study, a Virtual geological Field Trip(VFT) learning program using 3D panorama virtual reality techniques was developed to learn about the Gongju city 7 area located in Chungcheongnam-do, Korea. The developed $360^{\circ}$ 3D VFT program can show every face of observational points and interact as zoom-in, zoom-out and image rotation. For the educational effects of the materials, it is provided with a compass, a protractor, enlarged images, pop-up windows, etc.. The program was applied to the class of 35 gifted students in middle school to investigate the effectiveness of the program. The results showed that positive responses of the students were 90% or more. When geological field trip problems like cost, safety, distance occur in geological learning procedure of middle school science, this VFT program can become as a supplementary learning material and a solution.

The Demand Survey and Correlational Analysis for Geological Data (지질 자료의 수요조사 및 상관성 분석)

  • Hwang, JaeHong;Chi, KwangHoon;Han, JongGyu;Yeon, YoungKwang;Ryu, Keun Ho
    • Journal of the Korean Association of Geographic Information Studies
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    • v.10 no.1
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    • pp.60-72
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    • 2007
  • In general, the importance of geological information is emphasized not only for national SOC construction, underground space development and energy resources development but also in areas related to environmental disasters such as mine damage, ground subsidence and landslides. Although geological information is highly useful in developing industrial raw materials, national land management and people's welfare, there is no unified governmental institution in charge of collecting and managing geological information in the national level. For this, this paper study: first, to analyze geological demand for common experts; second, to analyze geological demand for public institution; and third, to set priority for geological informatization. In the result of surveying demand for geological information, we need to improve laws and systems for collecting and reporting geology-related materials, making thematic maps, and maintaining and managing geological information we need to establish national strategies and build an integrated system for interoperability of databases and systems. Accordingly, we will guideline on future direction of strategies for the national integration of geological information management system.

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