• Journal of the Korean Chemical Society
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• v.56 no.4
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• pp.509-517
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• 2012

In this study, the illustrations of 27 middle school science textbooks developed under the 2007 Revised National Curriculum were analyzed in the aspect of gender-role stereotyping, and the results were compared with those of the 7th National Curriculum. The types of the illustrations were classified, and the frequencies of pupils and adults who appeared on the illustrations were counted by gender, and the types of activities and the character of them were also analyzed by gender. In all results of the analyses, the differences between male and female decreased in comparison with those of the 7th National Curriculum. More male pupils appeared in the illustrations than female pupils. The frequencies of learning activities were balanced by gender, but other activities were described as focusing on male pupils. The frequencies of male adults outnumbered female adults. While the ratio of female adults was high in houseworks, that of male adults was high in outdoor activities. The jobs of adults were also illustrated as male-centered. Most pupils and adults were found to be active. Both ratios of pupils and adults for each gender were relatively similar.

• Journal of The Korean Association of Information Education
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• v.12 no.3
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• pp.355-363
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• 2008

In order to enhance the effect of Problem-based Learning, the role of scaffold as a learning support strategy is necessary. Collective intelligence provides scaffolding in the sense that it integrates users' knowledge, information, experiences, values, etc. Based on these factors, collective intelligence determines the direction of behavior, revises the direction continuously, and provides problem-solving methods. Teaching and learning situations emphasize learners' initiative, voluntary, and active participation. Thus, this study was conducted to find out if collective intelligence can be an effective and attractive alternative of learning strategy. Specifically, this study purposed to examine how collective intelligence performs the role of scaffold on the Web and what types of scaffolding are provided to learners. According to the results of this study, collective intelligence had a positive effect on learners' learning attitude, confidence, interest, etc. in the affective aspect, but its effect on the cognitive aspect was different according to learners' school year and learning level. Because collective intelligence had a positive effect on learners, we identified scaffolding types explanation, suggestion of direction, illustration and feedback in the cognitive aspect, and positive response and encouragement in the affective aspect.

• Journal of Elementary Mathematics Education in Korea
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• v.14 no.3
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• pp.807-825
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• 2010

Educational interest has been paid to ADHD students. Because of being easily distracted, lacking concentration, and committing hyperactive acts, they lag much behind other students in academic grades and their teachers have many difficulties in teaching them. This study aims to provide a case of enhancing an ADHD student's fraction-related achievement. To do this, we investigated his mathematical abilities in a preliminary study, devised an individualized teaching for the fractions unit, and applied them to him. And analyzing the results from observations and interviews of the student we can induce the following results: First, the ADHD student showed such types of errors in relation to fraction as lack of the concept of dividing into equal parts, lack of the concept of numerator and denominator, and errors in adding or subtracting fractions anc mixed fractions whose denominators were the same. And secondly, the fraction-related achievements of the ADHD student have improved thanks to the systematic teaching plan based on the accurate understanding of his academic gap relative to other students, his learning attitude, and his time difference. In addition, this study suggests several implications for ADHD students' learning of fractions.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.04b
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• pp.805-808
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• 2002

컴퓨터 시스템 및 네트워크에 대한 침입 공격의 방법 중 이미 알려진 형태의 공격에 대해서는 상대적으로 탐지가 용이하나 사용자의 비정상행위는 방법의 다양성 때문에 탐지가 매우 어렵다. 그러나, 사용자의 정상적인 행동은 몇 가지 소수의 형태로 특정 지어질 수 있다. 본 논문에서는 상대적으로 변화가 적은 정상 행위를 신경망으로 Modeling하여 이를 비정상 행위 탐지에 적용하는 기법을 제안한다. 이를 위하여 입력 영역을 지역화 하는 특성을 갖는 RBF(Radial-Basis-Fuction) 신경망에 대한 단일 Class의 학습방법을 제안하고, 이를 이용한 비정상 행위에 대한 공격의 탐지에 대한 적용 방안을 제시한다. 비정상 행위 탐지에 대한 적용 가능성을 검증하기 위하여 사용자가 키보드 입력 유형을 학습하고 이를 이용하여 타인의 ID와 Password를 도용한 경우의 탐지에 적용하였다.

• Journal of the Korean Chemical Society
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• v.65 no.5
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• pp.382-396
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• 2021

This study analyzed illustrations presented in middle school science 14 paper textbooks and 14 digital textbooks under the 2015 revised curriculum in terms of gender stereotypes. In both paper and digital textbooks, the most common type of illustration was multiple pupils. For pupils, the frequency of gender was balanced in both paper and digital textbooks. However, there were differences among publishers in digital textbooks. In both paper and digital textbooks, girls showed a higher frequency than boys in learning activities. However, the opposite tendency was observed in non-learning activities. In particular, non-learning activities of digital textbooks showed gender imbalance among all publishers. In both paper and digital textbooks, behavioral characteristics were mostly described to be active without gender differences. But, there were differences among publishers in digital textbooks. For adults, men showed a higher frequency than women in both paper and digital textbooks. Gender frequency was balanced in family activities, however, men showed a higher frequency in social activities. Unlike paper textbooks, digital textbooks were gender balanced in occupational activities. In both paper and digital textbooks, the number of occupations in which men appeared more frequently was higher than that in which women appeared more frequently. Especially, men showed a higher frequency than women in both scientist and researcher. Behavioral characteristics were mostly biased in terms of gender in both paper and digital textbooks.

• Korean Journal of Culture and Social Issue
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• v.16 no.3
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• pp.385-422
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• 2010

This study examines adolescent delinquent behavior and the influence of friends, focusing specifically on friends' delinquent behavior and the influence of self-efficacy, parent-child conflict and parental control. A total of 1,399 adolescents attending five different high schools (male=642, female=756, consisting of 915 student attending high school and 484 students attending vocational high school) completed a questionnaire developed by Ahn, Hwang, Kim and Park (1997) and Bandura's (1995a) self-efficacy scale. Results indicate that those students who attend high school had parents with higher education, socio-economic status and better studying environment at home, while students attending vocational high school had higher parent-child conflict. Students attending high school had higher self-efficacy scores, while students attending vocational high school had higher scores on delinquent behavior. The results of LISREL analyses revealed a similar pattern for high school and vocational high school students. Combined analysis indicate that friends' delinquent behavior, parent-child conflict and parental control had direct and positive effect on students' delinquency behavior. Self-efficacy had a direct and negative influence of delinquency behavior. Similar pattern was obtained for friends' delinquency behavior, in which self-efficacy had a direct and negative influence of their delinquency behavior and their parent-child conflict and parental control had direct and positive effect on their delinquency behavior. In summary, those students who had lower self-efficacy, higher parent-child conflict and parental control, and with friends who are more likely to engage in delinquent behavior, had higher scores on delinquent behavior. Also, those students who had friends with lower self-efficacy scores and with higher parent-child conflict and parental control are more likely to engage in delinquent behavior, which in turn influenced their delinquent behavior. Friends' delinquent behavior had the greatest influence on students' delinquent behavior indicating the role of friends in influencing delinquency among adolescents.

• Education of Primary School Mathematics
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• v.11 no.2
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• pp.121-139
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• 2008

This study analyzed problem presenting and solving activities in elementary school mathematics class to enhance insights of teachers in class for providing real meaning of learning. Following research problems were selected to provide basic information for improving to sound student oriented lesson rather than teacher oriented lessons. Protocols were made based on video information of 5th grade elementary school 'Na' level figure and measurement area 3. Congruence of figures, 4. Symmetry of figures, and 6. Areas and weight. Protocols were analyzed with numbering, comment, coding and categorizing processes. This study is an qualitative exploratory research held toward three teachers of 5th grade for problem solving activities analysis in problem presenting method, opportunity to providing method to solve problems and teachers' behavior in problem solving activities. Following conclusions were obtained through this study. First, problem presenting method, opportunity providing method to solve problems and teachers' behavior in problem solving activities were categorized in various types. Second, Effective problem presenting methods for understanding in mathematics problem solving activities are making problem solving method questions or explaining contents of problems. Then the students clearly recognize problems to solve and they can conduct searches and exploratory to solve problems. At this point, the students understood fully what their assignments were and were also able to search for methods to solve the problem. Third, actual opportunity providing method for problem solving is to provide opportunity to present activities results. Then students can experience expressing what they have explored and understood during problem solving activities as well as communications with others. At this point, the students independently completed their assignments, expressed their findings and understandings in the process, and communicated with others. Fourth, in order to direct the teachers' changes in behaviors towards a positive direction, the teacher must be able to firmly establish himself or herself as a teaching figure in order to promote students' independent actions.

• Korean Journal of Cognitive Science
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• v.28 no.1
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• pp.65-90
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• 2017

Rewards or penalties become informative only when contingent on an immediately preceding response. Our goal was to determine if the brain responds differently to motivational events depending on whether they provide feedback with the contingencies effective for learning. Event-related fMRI data were obtained from 22 volunteers performing a visuomotor categorical task. In learning-condition trials, participants learned by trial and error to make left or right responses to letter cues (16 consonants). Monetary rewards (+500) or penalties (-500) were given as feedback (learning feedback). In random-condition trials, cues (4 vowels) appeared right or left of the display center, and participants were instructed to respond with the appropriate hand. However, rewards or penalties (random feedback) were given randomly (50/50%) regardless of the correctness of response. Feedback-associated BOLD responses were analyzed with ANOVA [trial type (learning vs. random) x feedback type (reward vs. penalty)] using SPM8 (voxel-wise FWE p < .001). The right caudate nucleus and right cerebellum showed activation, whereas the left parahippocampus and other regions as the default mode network showed deactivation, both greater for learning trials than random trials. Activations associated with reward feedback did not differ between the two trial types for any brain region. For penalty, both learning-penalty and random-penalty enhanced activity in the left insular cortex, but not the right. The left insula, however, as well as the left dorsolateral prefrontal cortex and dorsomedial prefrontal cortex/dorsal anterior cingulate cortex, showed much greater responses for learning-penalty than for random-penalty. These findings suggest that learning-penalty plays a critical role in learning, unlike rewards or random-penalty, probably not only due to its evoking of aversive emotional responses, but also because of error-detection processing, either of which might lead to changes in planning or strategy.

• Korean Journal of Childcare and Education
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• v.8 no.6
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• pp.99-125
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• 2012

Teacher-child interaction was included in kindergarten and child care center accreditation evaluation and is considered as important as teaching and learning methods in the newly implemented Nuri curriculum. The purpose of this study was to confirm the difference of levels (emotional. verbal, behavioral) for the style of the interaction between teachers and children in kindergarten and child-care centers and to analyze direct effect and interaction effect, according to institution(kindergarten, childcare center). teacher(age, educational career, academic career), and child group(child number, child age) variables. The subjects in this study were 191 teachers in kindergartens and child-care centers in G region in Seoul. The overall average of the teacher-child interaction (emotional, verbal and behavioral interactions) was significantly higher, and there were not significant differences depending on the institution type and child group. According to the results of this study, factors of teacher characteristics affected the teacher-child interaction more than child-concerned variables.

• Journal of Science Education
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• v.36 no.2
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• pp.293-302
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• 2012

The purpose of this study was to analyze of the science examination of middle school 7th grade by Klopfer's taxonomy of educational objectives. A total of 645 test items from 10 middle schools were analyzed for this study. The examination items were analyzed according to the objectives of science education, such as behavior and contents area, question types, and the degree of difficulty. It was shown that, when the distribution of behavioral objectives was considered, the items emphasized knowledge and comprehension, and were scientific knowledge oriented. The tests consisted of multiple choice questions at a relatively high rate, compared to short answer questions. Comparing the rate of teachers' expectations to the degree of difficulty, the ratio of "top" was low and that of "medium" was high. The results of this study suggested that using various types of question and multiple levels of content and behavior enabled more effective evaluation of the diverse thinking powers and learning of the students.