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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Korean earth science society
Journal Basic Information
Journal DOI :
The Korean Earth Science Society
Editor in Chief :
Volume & Issues
Volume 28, Issue 7 - Dec 2007
Volume 28, Issue 6 - Oct 2007
Volume 28, Issue 5 - Sep 2007
Volume 28, Issue 4 - Aug 2007
Volume 28, Issue 3 - Jun 2007
Volume 28, Issue 2 - Apr 2007
Volume 28, Issue 1 - Feb 2007
Selecting the target year
Analysis of Scientific Models in the Earth Domain of the 10
Grade Science Textbooks
Oh, Phil-Seok ; Jon, Won-Son ; Yoo, Jung-Moon ;
Journal of the Korean earth science society, volume 28, issue 4, 2007, Pages 393~404
DOI : 10.5467/JKESS.2007.28.4.393
The purpose of this study was to identity scientific models included in the Earth domain of the
grade science textbooks. Three earth science-related chapters in each of 11 trade books were analyzed. A framework was developed and used to classify a scientific model from three different perspectives: medium of representation, method of representation, and mobility of a model. Results showed that the science textbooks utilized domain-specific models in which the nature of sub-areas of earth science was embedded. That is, the unit of 'Change of the Earth' included many iconic models that represented the inaccessible inner structure of the earth and the movement of the tectonic plates. These were also two-dimensional pictorial and static models. In the chapter of 'Atmosphere and Oceans', symbolic and diagrammatic models were dominant in use, which included weather maps and contour line graphs of sea surface temperature and salinity. The unit of 'Solar System and Galaxies' showed the highly frequent use of iconic and analogical models for the large-scale celestial objects and their movements. Implications for earth science education and relevant research were discussed.
An analysis of Earth Science Items and Achievement in TIMSS 2003
Kwak, Young-Sun ; Jeong, Eun-Young ;
Journal of the Korean earth science society, volume 28, issue 4, 2007, Pages 405~414
DOI : 10.5467/JKESS.2007.28.4.405
This study examined students' achievement of Earth science in the Trends in International Mathematics and Science Study (TIMSS) that was conducted with 46 participating countries in 2003 and analyzed average percent-correct items for Earth science were analyzed in terms of subcategory, item type and cognitive domain. In addition, items showing a gender difference and a big difference in the test scores of Korean and international students were analyzed. Korean students performed higher than the international average, especially in the astronomy-related topic and in the cognitive domain of 'reasoning and analysis'. In an analysis of the five items that Korean students scored lower than the international average, Korean students performed not so well in demonstrating what they understood with drawings and writings. Korean female students showed a difficulty more than male students did in multiple-choice items that asked recalling of factual knowledge and demonstrated lack of confidence in the items that they have not learned yet. Based on the result content organization of Earth science curriculum and ways to improve teaching and loaming methods were recommended.
Characteristics of High School Students 'Conceptual Understanding about Minerals and Rocks
Wee, Soo-Meen ; Cho, Hyun-Jun ; Kim, Jun-Suk ; Kim, Yun-Ji ;
Journal of the Korean earth science society, volume 28, issue 4, 2007, Pages 415~430
DOI : 10.5467/JKESS.2007.28.4.415
The purpose of this study was to investigate the characteristics of high school students' conceptual understanding about minerals and rocks. A questionnaire was developed to examine students' conceptions of minerals and rocks. The data were collected from 93 students in 10th and 119 students in 11th grades in a high school. The result showed that students' understanding of minerals and rock was on the moderate level. The 10th grade students showed a relatively lower level of understanding about igneous rocks while the degree of the 11th graders' understanding about certain concepts related with melting point in the rock domain was a little bit lower than the average. Although the understanding levels between the two grade levels were similar, there were some items for which students understanding seemed to be more sophisticated with the grade. In the questions about the characteristic of basalt surface, however, the frequencies of non-scientific conceptions were not decreased, rather increased along with the grade. It was also found that the conceptions students acquired from other science lessons as well as earth science classrooms did rather interfere with students' construction of the scientific concepts of minerals and rocks even though sometimes they were helpful for learning. It was suggested that the teachers should understand that some specific terms in earth science have different meanings as they were used in other subjects.
Development of an Automatic System of 36 cm Telescope for the Web-based Teaching in Astronomical Observation
Kim, Hee-Soo ; Yang, Jong-Woo ; Kim, Hyouk ; Han, In-Woo ; Kang, Nam-Hwa ;
Journal of the Korean earth science society, volume 28, issue 4, 2007, Pages 431~444
DOI : 10.5467/JKESS.2007.28.4.431
An automatic system of 36 cm telescope for the Web Based astronomy education was developed. The tracking accuracy of this system was about 1"/min. The pointing accuracy was
in the right ascension direction,
in the declination direction. These results will be improved continuously. The results of IRAF image analysis for the pilot observation data were stable, which means that this remote astronomical observation system is suitable f3r the education of astronomical observation.
Implementing Project-Learning Models of Web-Based Self-Directed for High School Students: 'Weather and Climate' Theme
So, Kwang-Suk ; Cho, Kyu-Seong ; Ryang, Woo-Hun ;
Journal of the Korean earth science society, volume 28, issue 4, 2007, Pages 445~452
DOI : 10.5467/JKESS.2007.28.4.445
A project-learning model of web-based self-directed (WBSD) was applied to teach a theme of 'weather and climate' to high school students in four classes of the 11th grade. Results showed that the WBSD model was overall effective in improving learning ability, self-consciousness, and attitude toward school. Specifically, the results of WBSD instructions reported that there was a significant difference in 7 variables of learning ability except for action control, 3 variables of self-consciousness, and 2 variables of school attitude when compared with those of traditional instructions. In addition, the project-learning model of WBSD presented the positive effect to all leaners at any level in self-directed learning.
Research Synthesis of Gender Differences in Korean Science Education Journals
Shin, Dong-Hee ; Park, Byoung-Tai ;
Journal of the Korean earth science society, volume 28, issue 4, 2007, Pages 453~461
DOI : 10.5467/JKESS.2007.28.4.453
This study analyzed all of the research articles published in six of the Korean science education journals in the past three decades. The purpose of this research synthesis was to identify gender differences in hundreds of research articles accomplished at the personal, local, and national level that have repeatedly been reported in several international comparative studies. There were few of articles that focused on gender issues, but 279 articles presented a result of gender issues separately. Of the 279 articles, we finally analyzed 225 research articles for a statistical significance. The articles were divided into two types of research method: test-based studies and experiment-based studies. The results of research synthesis in test-based studies were as follows: The largest number of studies reported male superiority in science knowledge and science-related attitude, which is similar to the results of recent international studies. In particular, gender differences were the biggest in science-related attitudes and the least in scientific process skills. The result of research synthesis in experimental studies was that the largest number of articles did not show significant gender differences in the effect of the applied program. It is noteworthy that the applied science education programs tend to be more effective in improving female students' scientific attitude and male students' science knowledge. It is necessary to develop more gender-inclusive science programs for female students to feel science more positively.
The Basalts and Volcanic Process in the Seondol Cinder Cone, Seobjikoji Area, Jeju Island
Koh, Jeong-Seon ; Yun, Sung-Hyo ; Kim, Suck-Youn ;
Journal of the Korean earth science society, volume 28, issue 4, 2007, Pages 462~477
DOI : 10.5467/JKESS.2007.28.4.462
The purpose of this study is to determine the petrology of basalt and the volcanic process in the Seondol cinder cone, Seobjikoji area, eastern Jeju Island. The Seondol cinder cone is mainly composed of spatters in the lower part, pyroclastic deposits including reddish brown blocks, ashes with volcanic bombs in the middle part, and dark black scoria deposits in the upper part. The volcanic sequences suggest volcanic processes that progress through Strombolian eruption and end with Hawaiian lava effusion which breached the cinder cone northwestward and extended over northwestward as lava delta and basalt emplaced as a volcanic neck in the central part of crater in the cinder cone. The age of basalt lava flows is about
. The basalts belong to transitional basalt and show products of fractional crystallization of clinopyroxene and olivine from a parental basalt magma on the basis of variation diagram of major, trace and rare earth elements. Basalts in the region of this study are plotted at the region of within plate basalt.
Evaluation of Long-term Data Obtained from Seawater Intrusion Monitoring Network using Variation Type Analysis
Song, Sung-Ho ; Lee, Jin-Yong ; Yi, Myeong-Jae ;
Journal of the Korean earth science society, volume 28, issue 4, 2007, Pages 478~490
DOI : 10.5467/JKESS.2007.28.4.478
With groundwater data of seawater intrusion monitoring network in coastal areas of Korea's main land, we analyzed types of seawater intrusion through the coastal aquifer. The data including groundwater level, temperature and electrical conductivity obtained from 45 monitoring wells at 25 watershed regions were evaluated. Based on statistical analysis, correlation analysis and variation type analysis, groundwater levels were mainly affected by rainfall and artificial pumping. About 78% of the monitoring wells showed average temperature higher than
and about 58% of them showed minimum variations less than
. Electrical conductivities showed a large magnitude of variation and irregular characteristics compared with groundwater levels and temperatures. Average electrical conductivities lower than
were observed at 28 monitoring wells while those of higher than
were done at 9 monitoring wells. From the cross-correlation analysis, groundwater levels were mostly affected by precipitation while temperature and electrical conductivity showed very low correlation. Meanwhile tidal variations strongly affected the groundwater levels comparing to precipitation. We classified the long-term monitoring data according to variation types such as constant process, linear trend, cyclic variation, impulse, step function and ramp. Impulse type was dominant for variations of groundwater level, which was largely affected by rainfall or artificial pumping, the constant process was dominant for temperature. Compared with groundwater level and temperature, electrical conductivities showed various types like linear trend, step function and ramp. According to the discrepancy of variation characteristics for monitoring data at each well in the same region, periodical analysis of monitoring data is essentially required.
CCD Photometry of the Asteroid 55 Pandora
Kwon, Sun-Gill ; Kim, Seung-Lee ; Lee, Ho ; Jeon, Young-Beom ; Park, Hong-Suh ;
Journal of the Korean earth science society, volume 28, issue 4, 2007, Pages 491~496
DOI : 10.5467/JKESS.2007.28.4.491
We performed R band time-series CCD photometric observations of the 55 Pandora for 2 nights using the 0.6 m telescope equipped with 2K CCD camera at SOAO (Sobaeksan Optical Astronomical Observatory). From the observation we determined its rotation period
, and maximum amplitude
. We also derived the pole position
, and the shape parameter a/b = 1.27, b/c = 1.31 by applying Amplitude-Magnitude method.
Late Tremadocian Radiolarian Faunas and Biostratigraphy of the Cow Head Group, Western Newfoundland, Canada
Won, Mun-Zu ; Iams, William J. ; Reed, Katherine M. ;
Journal of the Korean earth science society, volume 28, issue 4, 2007, Pages 497~540
DOI : 10.5467/JKESS.2007.28.4.497
Late Tremadocian radiolarian faunas were first recovered from the Cow Head Group, Newfoundland, Canada. Three faunal assemblages were recognized, one from Martin Point and two from Western Brook Pond in Gros Morne National Park. These radiolarian faunas include six families, 11 genera, and 26 species. In these faunas, six genera (Archeoproventocitum, Cowheadia, Neopalaeospiculum, Protospongentactinia, Protoproventocitum and Westernbrookia) and 17 species (Archeoproventocitum nudiformum, A. retiformum, Aspiculum densum, A. jamesi, A. multistratum, A. gigantium, Cowheadia duplextesta, Neopalaeospiculum densum, N. laxum, N. transformum, Pararcheoentactinia stilla, Protospongentactinia spongiosa, Protoproventocium nazarovii, P. aitchisoni, Westernbrookia cancella, W. diversa, and W. ovata) are new. Late Tremadocian faunas are characterized by the appearance of proventocitiids and diversification of aspiculumids and reduction of protoentactiniids and echidniniids that had flourished in the early Tremadocian faunas. An examination of the biostratigraphic range of co-occurring conodonts indicates that the radiolarian faunas described here belong to the late Tremadocian, from the Lower Diversity Interval through the M. dianae Zone to the lower P. proteus Zone. With the recovery of conodonts of the R. manitouensis Zone from other localities in the study area, the correlation among Martin Point, Western Brook Pond, Broom Point, and St. Paul's Inlet strata has became more precise. Also, the middle and late Tremadocian Cow Head Group can be subdivided into the R. manitouensis Zone, the Low Diversity Interval, and the M. dianae Zone of North America. The lower P. proteus Zone of the latest Tremadocian for northern Europe is recognized in the Western Brook Pond South section.