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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of the Korean earth science society
Journal Basic Information
Journal DOI :
The Korean Earth Science Society
Editor in Chief :
Volume & Issues
Volume 25, Issue 8 - Dec 2004
Volume 25, Issue 7 - Oct 2004
Volume 25, Issue 6 - Aug 2004
Volume 25, Issue 5 - Jun 2004
Volume 25, Issue 4 - Apr 2004
Volume 25, Issue 3 - Mar 2004
Volume 25, Issue 2 - Feb 2004
Volume 25, Issue 1 - Jan 2004
Selecting the target year
Changes in Teachers' Beliefs of Science Teaching and Learning Through Inservice Program Experiences Focusing on Student-Centeredness
Shin, Myeong-Kyeong ;
Journal of the Korean earth science society, volume 25, issue 2, 2004, Pages 53~62
For teachers to develop new beliefs regarding science teaching and learning, they must undergo a process similar to what they are trying to provide their students. Seventy-one Korean secondary school teachers including 20 earth science teachers have participated in such process. In the four-week long summer workshop hosted by University of Iowa, science teachers were exposed to several activities and lectures wherein they experienced student-centered lessons by playing the roles of both teachers and learners. This study examined the influence of such experience on the teachers’ beliefs about science teaching and learning. Changes in teachers’ beliefs were found in seven question items on the subjects of goals of science learning, the roles of science teachers and students, and classroom practices after workshop participation; it was found that teachers’ beliefs of science learning and teaching shifted from teacher-centered to student-centered. Although this shift does not denote a complete shift from one extreme to the other, it is meaningful to note that teachers’ beliefs after attending the workshop were interpreted to be either anti- or contrary to teacher-centered. One of the possible factors for making such positive changes may have been teamwork or the teachers’ cooperative learning experience.
Effect of Cooperative Learning on Conceptual Change of Atmospheric and Water Cycle
Jeong, Jin-Woo ; Jang, Myoung-Duk ; Chun, Seon-Lye ;
Journal of the Korean earth science society, volume 25, issue 2, 2004, Pages 63~73
This study investigated the effect of cooperative learning on the middle school students’ conceptual change of atmospheric and water cycle and also examined the verbal interaction patterns in a cooperative group. The study also analyzed the relationship between the verbal interaction and students’ conceptual change in the cooperative learning situation. Two classes from a middle school were selected as an experimental group (cooperative learning group, n = 37) and a control group (traditional learning group, n = 37), respectively. The experimental group was taught by STAD cooperative learning model and received collaborative skill training. The results of the study can be summarized as follows: first, there were no significant differences in conceptual change between the two groups. As for the middle-achieving students on the pretest, however, the score of the cooperative learning group was significantly higher than that of the traditional learning group. Secondly, verbal interaction in the cooperative learning situation mainly happened among high- and middle achieving students. In addition, the students who were successful in undergoing conceptual change had more frequent verbal interactions than the students who were not. The study suggests that it is more important to interact between a teacher and students than to interact between the students and students in order to correct students’ misconception.
Effect of Web-Based Project Learning on the Science Achievement and Attitude of Middle School Students
Kwak, Min-Hee ; Yoo, Jung-Moon ;
Journal of the Korean earth science society, volume 25, issue 2, 2004, Pages 74~86
The effect of Web-based project learning on the science achievement and attitude of middle school students was investigated. Four classes of 9th grade at a coed middle school were divided into control and experimental groups. Web-based project instruction in which students utilized the Web to interactively carry out their projects was put into practice with the experimental group, while traditional instruction was employed with the control group. Pre- and post-test achievement and attitude scores were estimated through an analysis of covariance. Web-based project instruction was seen to be more effective in enhancing students’ science achievement and attitude than traditional instruction. In particular, the former instruction was most useful for improving higher level students’ achievement and attitude among the higher, middle, and lower level students of both groups, based on their academic achievement. The effect of Web-based project may result in eradicating negative cognition about gender difference.
Variations of Turbulent Fluxes in the Atmospheric Surface Layer According to the Presence of Cloud
de Oliveira Junior, Jose Francisco ; Kwon, Byung-Hyuk ;
Journal of the Korean earth science society, volume 25, issue 2, 2004, Pages 87~93
To study the effect of cloud on the variabilities of turbulent fluxes over the flat terrain, we used the gradient method to analyze the dynamic and thermodynamic data from the meteorological 9-m mast (0.75, 3 and 9 m) in Villafria airport in Spain. The decrease of the surface wind speed is governed by cooling at the surface following the evening transition. The sensible heat flux and the momentum flux are increased with the dynamic factor rather than the thermodynamic factor, and the sensible heat flux was not affected by the thermal condition. The global radiation did not play an important role in the variation of the sensible heat flux in the cloudy day, but the atmospheric surface layer was characterized rather by the wind intensity.
Study on Variation of Local Atmospheric Circulation Due to Road Development in Mountain Area
Hwang, Soo-Jin ; Seo, Kwang-Soo ; Lee, Soon-Hwan ;
Journal of the Korean earth science society, volume 25, issue 2, 2004, Pages 94~108
In order to clarify the efficiency of ground level change in Ice-valley on atmospheric circulation, numerical experiment was carried out. The circulations over the slope in North and South are different due to the topography and short wave radiation in Ice-valley. Therefore the circulations in both side are asymmetric and the asymmetric circulations are kept on at 1800 LST. A small difference of the atmospheric circulations formation is made due to the road construction at night. The reason may be the weakness of sensible heat flux from the road and other factors except that the sensible heat is not a principal factor in road construction. The construction of road is associated with growing of sensible heat from the road surface. For this reason, in case of daytime, ascending wind in north slope is more stronger with the road than that without road. The maximum wind speed becomes 4.67 m/s after road construction. And the position of the road is also an important factor in estimation of mesoscale circulation in mountainous area.
Wavelet Generation and It's Application in Gravity Potential
Kim, Sam-Tai ; Jin, Hong-Sung ; Rim, Hyoung-Rae ;
Journal of the Korean earth science society, volume 25, issue 2, 2004, Pages 109~114
A wavelet method is applied to the analysis of gravity potential. One scaling function is proposed to generate wavelet. The scaling function is shown to be replaced to the Green’s function in gravity potential. The upward continuation can be expressed as a wavelet transform i.e. convolution with the scaling function. The scaling factor indicates the height variation. The multiscale edge detection is carried by connecting the local maxima of the wavelet transform at scales. The multiscale edge represents discontinuity of the geological structure. The multiscale edge method is applied to gravity data from Masan and Changwon.
EARTH SCIENCE INSTITUTE : METEOROLOGICAL RESEARCH INSTITUTE, MARINE METEOROLOGY & EARTHQUAKE RESEARCH LABORATORY
Journal of the Korean earth science society, volume 25, issue 2, 2004, Pages 115~115
Journal of the Korean earth science society, volume 25, issue 2, 2004, Pages 116~116