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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of The Korean Association For Science Education
Journal Basic Information
Journal DOI :
The Korean Association for Research In Science Education
Editor in Chief :
Volume & Issues
Volume 21, Issue 5 - Dec 2001
Volume 21, Issue 4 - Dec 2001
Volume 21, Issue 3 - Sep 2001
Volume 21, Issue 2 - Jun 2001
Volume 21, Issue 1 - Mar 2001
Selecting the target year
Evaluation of an Activity-Oriented Extracurricular Science Fair
Seo, Hae-Ae ; Jhun, Young-Suk ; Hyun, Jong-Ho ; Ryu, Sung-Chul ; Han, Jae-Young ; Choi, Won-Ho ; Kim, Hyeon-Bean ; Cho, Su-Min ; Ihm, Hyuk ;
Journal of The Korean Association For Science Education, volume 21, issue 3, 2001, Pages 473~486
The study aimed to evaluate an activity-oriented extracurricular science program as informal science education through the assessment of opinions of student participants and lead-students and lead-teachers who organized the program. An 'Exciting Science Fair' was designed by science teachers and students and provided for 857 students for two days in early 1998. Students chose a course of science activities designed by different levels of student knowledge and interests. During their own science activity courses, the participating students were grouped as pair of two students and guided and facilitated by lead-students. A survey instrument was developed by researchers and asked respondents' opinions of 121 participating students, 72 lead-students, and 19 lead-teachers to the significance of program goals, degree of goal achievement, and program planning and management system before and after the program. It was found that most student participants, lead-students and lead-teachers satisfied with the efficiency of the program. However, it was recommended that the program should place more emphases on engaging student participants in science activities, strengthening scientific inquiry through activities, and increasing science content related to student daily life. It was also suggested that advertizement of the program be publicized in advance through media, an effect teaching-learning strategy for lead-students be developed, and collaboration among lead-students and lead-teachers be improved.
The relationships of verbal behaviors with learning variables in cooperative learning environments, and middle school students' perceptions of cooperative learning
Lim, Hee-jun ; Cha, Jeong-Ho ; Noh, Tae-Hee ;
Journal of The Korean Association For Science Education, volume 21, issue 3, 2001, Pages 487~496
In a 7th graders' cooperative science class, verbal behaviors were categorized and their relationships with the improvement of learning strategies used. motivation, and attitudes were investigated. Students' perceptions of cooperative learning were also studied by the achievement level. Verbal behaviors in cooperative learning were positively related with the improvement of monitoring and organization strategies used, self-efficacy, and attitude toward science class. In the analyses of students' perceptions of cooperative learning, medium- and low-achieving students had positive perceptions but some high-achieving students had negative ones. In the aspect of effectiveness of cooperative learning, especially, medium- and low-achieving students perceived that they could learn more and better due to verbal interactions with peers. To be contrary, high-achieving students perceived that they learned less and superficially.
The Relationships among High School Students' Conceptual Understanding of Molecular Structure and Cognitive Variables
Noh, Tae-Hee ; Seo, In-Ho ; Cha, Jeong-Ho ; Kim, Chang-Min ; Kang, Suk-Jin ;
Journal of The Korean Association For Science Education, volume 21, issue 3, 2001, Pages 497~505
In this study, the relationships among students' conceptual understanding of molecular structure and cognitive variables were investigated for 165 high school students. After they had learned 'High School Chemistry II' for two semesters, the tests of conception concerning molecular structure, spatial visualization ability, logical thinking ability, mental capacity, and learning approach were administered. The results indicated that students' conceptual understanding of molecular structure was not sound, and several misconceptions were found. The scores of the conception test were significantly correlated with all the cognitive variables studied. Multiple regression analyses were conducted to examine the predictive influences of students' cognitive variables on their conceptual understanding. Meaningful learning approach was the most significant predictor and were followed by logical thinking ability, rote learning approach, and mental capacity. However, spatial visualization ability did not have the predictive power.
Ninth Graders' Self-Assessment of Scientific Process Skills in Open Investigation
Hwang, Sung-Won ; Kim, Hee-Kyong ; Yoo, June-Hee ; Pak, Sung-Jae ;
Journal of The Korean Association For Science Education, volume 21, issue 3, 2001, Pages 506~515
Understanding the students' ability and tendency of self assessment is one of the important factors in helping their learning and in giving the appropriate feedbacks. The purposes of this study is to analyse the coincidency of the students' self-assessment with the teacher assessment, and the tendency of over and under estimation. The students performed open investigations and assessed their process skills by checking their investigation reports with a given checklist. The total mean of the 'Self-Assessment Capability(SAC)' was 0.73 by 1. The SAC was related to the achievement, not to the gender. The correlation between SAC and achievement was significantly positive(r=0.7, p<.01), and for the girls, the tendency was remarkable. Among the five areas of process skills of open investigation, students got the highest SAC score in the managing and interpreting data area, and the lowest SAC in the drawing conclusion area. The mean of 'Self-Assessment Tendency(SAT)' for all items showed that students overestimated their process skills. While the high achievement students underestimated their process skills, the middle and low showed the tendency of overestimation.
Changes of the Prefrontal EEG(Electroencephalogram) Activities according to the Repetition of Audio-Visual Learning
Kim, Yong-Jin ; Chang, Nam-Kee ;
Journal of The Korean Association For Science Education, volume 21, issue 3, 2001, Pages 516~528
In the educational study, the measure of EEG(brain waves) can be useful method to study the functioning state of brain during learning behaviour. This study investigated the changes of neuronal response according to four times repetition of audio-visual learning. EEG data at the prefrontal
were obtained from twenty subjects at the 8th grade, and analysed quantitatively using FFT(fast Fourier transform) program. The results were as follows: 1) In the first audio-visual learning, the activities of
waves increased highly, but the activities of
(8-13Hz) waves decreased compared with the base lines. 2). According to the repetitive audio-visual learning, the activities of
waves decreased gradually after the 1st repetitive learning. And, the activity of
wave had the higher change than that of
wave. 3). The activity of
wave decreased smoothly according to the repetitive audio-visual learning, and the activity of
wave decreased radically after twice repetitive learning. 4).
waves together showed high activities in the 2nd audio-visual learning(once repetition), and the learning achievement increased highly after the 2nd learning. 5). The right prefrontal
showed higher activation than the left
in the first audio-visual learning. However, there were not significant differences between the right and the left prefrontal EEG activities in the repetitive audio-visual learning. Based on these findings, we can conclude that the habituation of neuronal response shows up in the repetitive audio-visual learning and brain hemisphericity can be changed by learning experiences. In addition, it is suggested once repetition of audio-visual learning be effective on the improvement of the learning achievement and on the activation of the brain function.
The Effects of a Portfolio System on Elementary School Students' Socio-psychological Classroom Environment
Cho, Seon-Hyeong ; Kim, Chan-Jong ; Kim, Beom-Ki ; Kim, Chul-Yung ; Kim, Hye-Jeong ;
Journal of The Korean Association For Science Education, volume 21, issue 3, 2001, Pages 529~536
The purpose of the research is to investigate the effects of a portfolio system on students' socio-psychological classroom environments in elementary science class. Two schools were selected from a metropolitan area, a city, and one school from a rural area in central Korea. Two fifth-grade classes were sampled from each school selected, and one class is assigned to experimental group and the other to control group, respectively. The total number of participants of the study is 399. Portfolio system was administered to experimental group, and conventional teaching to control group for two and half month. WIHIC, an inventory to measure socio-psychological classroom environment, was administered as a pre- and post-test. Experimental group gained statistically higher scores on WIHIC after administering portfolio system. They showed more positive perceptions on sub-areas of WIHIC such as teacher support, task orientation, and equity. There is interaction between region and group: the effects of the portfolio system is highest in rural area, lowest in metropolitan area, and the city in between. Portfolio system have positive effects on students' socio-psychological classroom environments. Enhanced socio-psychological classroom environments is expected to contribute to positive self-concept, higher science achievements, and self-directed learning.
Preservice Elementary School Teachers' Views on Relationship between Science/Technology and Society
Kang, Suk-Jin ; Han, Su-Jin ; Kim, Jae-Hyun ; Noh, Tae-Hee ;
Journal of The Korean Association For Science Education, volume 21, issue 3, 2001, Pages 537~546
The purpose of this study was to investigate preservice elementary school teachers' views on the relationship between science/technology and society. Freshmen (n=93) and seniors (n=82) at three universities of education were asked to express their views with 8 items in the Views On Science-Technology-Society, which consisted of two subcategories; 'influence of science/technology on society' (4 items) and 'influence of society on science/technology' (4 items). Mann-Whitney U test revealed that the scores of the freshmen were higher than those of the seniors. This trend was notable particularly in the item concerning 'influence of corporations on science/technology' and 'influence of interest groups on science/technology'. In comparing the scores by gender, a significant difference was found in the item concerning 'influence of policy on science/technology' for the freshmen.
An Analysis of Problems Related to Cloud Making Experiments in School Science Textbooks and Development of an Experiment Based on the Thermodynamic Theories
Park, Dong-Joe ; Paik, Seoung-Hey ; Kang, Seong-Joo ;
Journal of The Korean Association For Science Education, volume 21, issue 3, 2001, Pages 547~557
In this study, we compared the contents of cloud making experiments in middle school science textbooks of 5th and 6th science curriculum from the viewpoint of methods and apparatus. And we analyzed the problems of the experimental methods and apparatus based on the thermodynamic theories. A new experiment was developed to solve the problems, and the effects of new experiment were compared with those of the experiments in the textbooks.
Comparative Study on the Attitudes toward Science of Middle School, High School, and University Students
Shim, Kew-Cheol ; Kim, Hyun-Sup ; Park, Young-Chul ;
Journal of The Korean Association For Science Education, volume 21, issue 3, 2001, Pages 558~565
The purpose of present study is to examine the science attitude level of middle school, high school and university students, and to provide the suggestions for science education. Instrument to invent science attitude consists of four domains as 'Scientific Inquiry', 'Importance of Contribution to Science', 'Normality of Scientist', and 'Social Value of Science'. Inventory instrument have 20 items(Likert scale of 1 to 5). Subjects are 70 middle school, 72 high school, and 95 university students. There is no significant difference among students by school, but the attitude level toward science of female students is lower than that of male students. 'Importance of Contribution to Science' among four domains has the highest score of attitude toward science, whereas 'Normality of Scientist' has the lowest attitude score toward science. To bring up scientific abilities of students, we conclude that it needs the educational plan to increase science attitude of students, through improving and developing curricular system and science curriculum for the secondary school and university.
Analysis of Middle School Students' Thinking Processes in Galileo's Free Fall Thought Experiment
Jeong, Su-In ; Park, Jong-Won ;
Journal of The Korean Association For Science Education, volume 21, issue 3, 2001, Pages 566~579
The purpose of this study was to investigate students' actual thinking processes during conceptual change about free fall. To do this, middle school students were made an interview designed based on a teaching model using thought experiment. From the study, it was found that strategy for generating cognitive conflict by suggesting opposite views was not effective. However, many students changed their prior conceptions when new explanatory hypothesis, which explained why heavy object and light object fall equally, was introduced. And finally, even though students realized that the changed idea did not accord with the real world, they could easily solve that problem by observing demonstration designed to show the effect of air resistance.