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김송철,고영구,윤석태,오강호,문병찬 全南大學校 師範大學 科學敎育硏究所 2004 科學敎育硏究誌 Vol.28 No.1
In this study, high school textbooks of Earth Science I & II were analyzed in the arrangements of contents and illustrations. Then, it could lead to recognize some problems in the books. In the books, the explanations about useful illustrations were insufficient and their locations and forms were so fixed and simple that they didn't give rise to students' interests any longer. Besides, they were often named in Chinese characters and compound words. The illustrations were mostly restricted to small kinds of fossils such as dinosaurs and ammonites in the Mesozoic era. In addition, the illustrations didn't give us certain fossils' sources. Of the illustrations, only few restoration ones existed insufficient to learning fossils.
김송철,윤석태,고영구 全南大學校 師範大學 科學敎育硏究所 2009 科學敎育硏究誌 Vol.33 No.1
This study aims to the investigation on the extemal shapes and the textural characters of rocks which were used in ondol (Korean traditional heating system. The rocks called as gudeuljang in korean were mainly sampled in the western area of Jeonnam province. In the area, the rocks are mostly of tuff, sandstone and schist, but granite and andesite are not favorite rocks used in the ondol. The rocks show several external features including carbon deposition by imperfect combustion, profound developments of fractures, pinkish color change associated with powdering under naked-eye observation. In microscopic views, the rocks represent characteristic optical and shape changes of overgrowth and exsoulution in quartz, irregular cracks along twin and cleavage planes in plagioclase, disappearances of micas, impregnation by limonite and so forth. These external and microscopic features on the rocks imply the thermal history of the rocks induced by heating. So, it is considered that the rocks were used in the ondol might contain several external and textural features associated with their thermal histories by longtime heating..