• Journal of the Korean Chemical Society
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• v.65 no.1
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• pp.37-47
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• 2021

In this study, the model cognition level of high school science-gifted students about the two types of acid-base models taught in secondary schools was analyzed. In order to find out the model cognition level of students, 12 items were developed based on the acid-base reaction and the dissociation reaction of acids and bases. The subjects of the study were 95 students of two science-gifted schools. As a result of the questionnaire analysis, model cognition levels were analyzed 6 levels in the context of consistency, inconsistency, and unexplainable scope of the two models. In the acid-base reaction item, the largest percentage of students cognized only understanding of the two models. In the acid-base dissociation reaction item, they understood the two models and perceived the 'Known Ignorance' that cognizes the limitations of one model. However, there was only one student who perceived the limitations of both models and all of the 'Unknown Ignorance' that the model could not explain. Through this, we argued that there is a need for educational efforts to raise the model cognition level of science-gifted students.

• Journal of The Korean Association For Science Education
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• v.28 no.5
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• pp.453-463
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• 2008

This study investigated the students' perceptions of environmental scientists and their work and the factors influencing the students' images of them by using the Draw-An-Environmental-Scientist-Test (DAEST). The DAEST was administered to 413 students in 10th and 11th grades selected from three high schools in Seoul. The results revealed that the students' images of environmental scientists were different from the stereotypical images of scientists. In the students' drawings, it was difficult to distinguish the gender and age of environmental scientists. Most students also perceived environmental scientists collecting data on environmental pollution by using experimental equipments and a laptop computer in the field. The students answered that the factors affecting their images of environmental scientists were mass media, school education, internet, and so on. According to the students' grade and gender, there were differences in the perceptions of environmental scientists and their work, and there were factors that influenced their images. Educational implications of these findings are discussed.

• The Mathematical Education
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• v.62 no.3
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• pp.327-340
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• 2023

The value that students consider important in math learning may vary depending on the student's socio-cultural background and personal experience. Although socio-cultural backgrounds are very diverse, I considered overseas vs domestic Koreans, and secondary school levels as variables in terms of students' educational experiences. Overseas students had a lower perception of the value in mathematics than domestic students, especially about understanding mathematics knowledge and the value of the latest teaching and learning methods. Middle school students perceived the value of mathematics as an activity higher than that of high school students, and high school students perceived student agency as a higher value than middle school students. In addition, I considered meta-affect as one of the individual students' experiences, finally meta-affect was a variable that could explain value perception in math learning, and in particular, affective awareness of achievement, affective evaluation of value, and affective using were significant. From the results, I suggested that research on ways to improve the value and the meta-affect in math learning, test to measure the value of students in math learning, the expansion of research subjects to investigate the value in math learning, and a teacher who teaches overseas Koreans are needed.

• Journal of the Korean earth science society
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• v.36 no.3
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• pp.280-299
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• 2015

The purpose of this study was to investigate the effects of an instruction using geologic planar figures on high school students' ability of spatial visualization and geologic spatial ability and also to explore its applicability as an instructional strategy through the investigation of students' perception about the instruction using mixed methodology. For this purpose, we developed 10 planar figures of geologic structures (2 horizontal layers, 2 vertical layers, 4 angular layers, 1 fault, and 1 fold), and tested students' spatial visualization ability and geologic spatial ability before and after the implementation in class. In addition, in order to investigate students' perception on the instruction, we conducted quantitative research using questionnaires comprised of the cognitive and the affective domain, and followed by focus group interview that was conducted to obtain deeper understanding of their perception. Findings revealed that the instruction using geologic planar figures was effective to enhance spatial visualization ability and geologic spatial ability. It was also helpful for students to enhance their ability to perceive the spatial configuration of the geologic structures as well as the ability to penetrate visually into the images of the structures. The results of the students' perception on the instruction showed that the students recognized the instruction using geologic planar figures as a strongly positive teaching method both in the cognitive and affective domain. We concluded that geologic planar figures could be used as an effective tool for the lesson of 'mapping and interpreting of geological map', and be highly applicable for the advanced class in high schools.

• Journal of the Korean earth science society
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• v.36 no.4
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• pp.404-416
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• 2015

We investigated the cognitive frame of high school students and inservice high school science teachers about effective teaching method, and we also explored how they understood about the teaching methods suggested by the 2009 revised Science Curriculum. Data were collected from 275 high school science teachers and 275 high school students. We analyzed data in terms of the words and the cognitive frame using the Semantic Network Analysis. The results were as follows. First, the teachers perceived that an activity oriented class was the effective science class that helped improve students' problem-solving abilities and their inquiry skills. The students had the cognitive frame that their teacher had to present relevant and enough teaching materials to students, and that they should also receive assistance from teachers in science class to better prepare for college entrance exam. Second, both students and teachers retained the cognitive frame about the efficient science class that was not reflected 2009 revised Science Curriculum exactly. Especially, neither groups connected the elements of 'convergence' as well as 'integration' embedded across science subject areas to their cognitive frame nor cognized the fact that many science learning contents were closed related to one another. Therefore, various professional development opportunities should be offered so that teachers succinctly comprehend the essential features and the intents of the 2009 revised Science Curriculum and thereby implement it in their science lessons effectively.

• Journal of Korean Home Economics Education Association
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• v.25 no.3
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• pp.79-91
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• 2013

The purpose of this study was to investigate the relation among peer support, family strength and self-control. This subjects were the 438 high school students living in Gwangju. Data were analyzed with SPSS 18.0 program. The major findings were as follows; First, the high school students' peer support and family strength scores were higher than median(3.00). Also, long-term satisfaction pursuit scores were higher than median and the immediate satisfaction pursuit scores were lower than median. Second, peer support showed significant difference according to sex. Family strength showed partially significant difference according to standard of living and parents' education achievement. Self-controls showed significant difference according to sex and father's education achievement. Third, family strength and the self-control showed significant correlation. Forth, the high school students' self-control was influenced by role sharing and problem solving, communication and family bonding and fathers' education achievement. And the high school students' self-control was explained about 15% by these variables. In conclusion, the role of home is important. it is necessary to enhance the education of financial stability and to improve self-control in order to help the students enhance solidity among family and communicate affirmatively.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.3
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• pp.1313-1319
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• 2013

The purpose of this study was to survey body image according to BMI. The subjects were 600 students, data were collected by questionnaire surveys using convenience sampling and analyzed by the SPSS 20.0 program. Body mass index(BMI) and body image between high school and college students were significantly different. Although significant difference between two groups, BMI of high school and college students among women were not significant difference. BMI and body image according to gender were significantly different. Body image according to BMI between men and women were significantly different and expecially subjects of under weight had highest body image(F =15.86, p <.001). These results mean that body weight misunderstood by the early adulthood. It is needed to revise of perception on their own body weight in order to improve body image.

• Proceedings of the Korean Information Science Society Conference
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• 2010.06b
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• pp.260-264
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• 2010

본 연구는 2010년 전국 정보과학기술(IT) 영재교육을 위한 학생 선발 과정을 중심으로 과거의 선발 과정과 차이점을 비교해보고, 정보과학기술에 관심이 있는 교육생을 대상으로 모집된 결과로 부터 성별, 지역별, 학교별 분포를 분석하였다. 분석결과에서 남학생과 여학생의 비율이 1 : 0.29로 나타났는데 이는 남학생보다, 여학생이 정보과학기술을 접하기 어려운 분야로 인식하고 있다는 것이다. 두 번째로, 지역별 분포비율을 조사한 결과 부산지역이 가장 많은 관심 비율을 보이고 있었는데, 이는 부산에 한국과학영재학교를 비롯한 부산광역시 교육청 산하 정보영재교육원과 같은 정보영재교육의 참여도가 많은 학생들이 지원한 것으로 보인다. 세번째, 중학생과 고등학생의 비율을 분석한 결과 중학생이 고등학생보다 약간 우위를 가지는 것으로 확인되었다. 이는 좀 더 일찍 자신의 적성에 적합한 영재교육의 혜택을 경험해보기 위해서이며, 학업의 내용이 학교 교과과정에만 관심이 있는 것이 아니라, 자기계발을 위한 학부모와 학생들에 관심이 높아지고 있음을 알 수 있다. 또한 국가적 IT 브랜드의 위상이 높아지고 IT의 발전이 학생들에게 많은 영향을 주었다고 본 연구에서는 판단된다. 정보과학기술 영재교육의 학생 선발 방식이 새롭게 전환되면서 무엇보다도 전국의 많은 학생들이 IT영재교육원의 교육 혜택을 받게 되었다는 점과, 많은 학생들이 온라인 교육을 통해서 소셜 커뮤니티를 형성하여 창의력과 자기계발 잠재력을 키울 수 있는 계기가 되었다는 점에서 큰 의미가 있다고 할 수 있다.

• 한국과학교육학회:학술대회논문집
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• 2009.02a
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• pp.70.1-70.1
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• 2009

• Proceedings of the Zoological Society Korea Conference
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• 1994.10a
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• pp.265-265
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• 1994