• Journal of Gifted/Talented Education
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• v.26 no.4
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• pp.653-675
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• 2016

This study investigated when and how science gifted students decide their career planning. We used semi-structured survey and additional interviews from the students of Science High School in Daejeon area. We found 39.1% of science gifted students in 10th grade formed their career planning from their middle school periods. They had comparatively high levels of parenting support. The students chose their career fields based on their interests and aptitudes. However, some students were able to try and never give up with self confidence even when they had low scores, and teacher's reinforcements influenced positively. 71.3% of students thought that the grades take up the achievement of career development. Besides, the career programs which had specific purposes and directions were very effective by 33.3%~64.4%. Otherwise the effects were low as 2.3%~18.4%. Especially, R&E research programs didn't effect on students' career development and some students even frustrated with research. Based on the results, we need to reflect current career education and develop worthwhile career development programs for the science gifted students.

• Journal of The Korean Association For Science Education
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• v.39 no.2
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• pp.161-171
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• 2019

The purposes of this study are: 1) to verify the systems thinking factor structure of elementary school students and 2) to compare systems thinking according to their preferred subjects in order to get implications for following research. For the study, pre-tests analyze data from 732 elementary school students using the STMI (Systems Thinking Measuring Instrument) developed by Lee et al. (2013). And exploratory factor analysis was conducted to identify the factor structure of the students. Based on the results of the pre-test, the expert group council revised the STMI so that elementary school students could respond to the 5-factor structure that STMI intended. In the post-test, 503 data were analyzed by modified STMI and exploratory factor analysis was performed. The results of the study are as follows: First, in the pre-test, elementary school students responded to the STMI with a test paper consisting of two factors (personal internal factors and personal external factors). The total reliability of the instrument was .932 and the reliability of each factor was analyzed as .857 and .894. Second, for modified STMI, elementary school students responded a 4-factor instrument. Team learning, Shared Vision, and Personal Mastery were derived independent factors, and mental model and systems analysis were derived 1-factor. The total reliability of the instrument was .886 and the reliability of each factor was analyzed as .686 to .864. Finally, a comparison of systems thinking according to preferred subjects showed a significant difference between students who selected science (engineering) group and art (music and physical education). In conclusion, it was confirmed that statistically meaningful results could be obtained using STMI modified by term and sentence structure appropriate for elementary school students, and it is a necessary to study the relation of systems thinking with various student variables such as the preferred subjects.

• Journal of the Korean earth science society
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• v.38 no.3
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• pp.239-249
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• 2017

The purpose of this exploratory study was to investigate the influence of pre-service science teachers' selection of earth science I, II in the high school and their college major on their self-perceived attitude and academic achievement in general earth science lecture at university. The participants in the study were 273 who enrolled in the division of science education, college of education and took the general earth science lecture from 2012 to 2015. The data was analyzed with two-way ANOVA by using SPSS 23.0. The results indicated that there was no significant difference of students' attitude and examination difficulty in general earth science lecture between earth science major and other subject major. However, students who took earth science I and/or II in high school showed positive attitude toward the lecture and higher achievement scores than students who didn't take earth science I, II in their high school. The results of the study imply that it is essential to consider students' attitude toward science and achievement in pre-service science teacher education.

• Journal of the Korean Chemical Society
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• v.61 no.6
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• pp.369-377
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• 2017

The purpose of this study was to investigate high school students' perceptions on chemistry subjects: reasons for choosing chemistry, learning volume and content difficulty, interests, teaching/learning methods, preferable classes etc. A total of 1,087 students who took chemistry subjects at 126 high schools by proportional stratified sampling were voluntarily participated in the survey. The main reasons the students chose chemistry subjects were interests and interests in chemistry, foundation to science, relevance to college majors, and so on. Students recognized that the learning volume and content difficulty as normal level was about 60%. Reasons why chemistry was difficult was that, although there was a difference in degree, chemistry was difficult in itself and had too much things to memorize. In the case of interests in chemistry subjects, students of 43.9% of Chemistry I and 52.0% of Chemistry II recognized the level as normal. The reason why not interested in chemistry subjects was that it was the nature of chemistry contents, or students had neither interests and enjoyment of chemistry nor foundation for chemistry. Classes were mostly lectures but the students preferred mainly experimental activities, or explanation with real-life examples or science stories. The frequency of experimental activities was found to be 1 to 5 times per semester, or not experimented. Research and efforts will be necessary to improve classes and environments for students' experimental activities.

• Journal of The Korean Association For Science Education
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• v.25 no.5
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• pp.603-609
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• 2005

Students obtain most concepts through textbooks, and teaching-learning activities between teachers and students. Accordingly, if science teachers already have misconceptions they will inevitably affect students' scientific concept. This study found many problems in teachers' cognition on the concepts of nuclear radiation. Because 12th grade physics II is classified as an optional subject in the 7th curriculum, teachers have few chances to teach it and, more importantly, have difficulty in teaching it because of the need to prepare students for the university entrance examination. The concept of radiation must be taught correctly because of its emergence in the 'environment' unit of 10th grade Science. Finally, results from this study can help science teachers teach these difficult concepts more correctly. In addition, results can also be useful in in-service retraining programs.

• Journal of The Korean Association For Science Education
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• v.25 no.2
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• pp.79-87
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• 2005

We compared algorithmic problem solving and conceptual understanding of chemistry with three types (algorithmic, pictorial- and wordy-formatted conceptual) of problems. The familiarity, confidence, and preference to the three type of problems were also examined. The chemistry problem solving ability test was administered to 228 students from two top high schools in the province of Gyeonggi who were preparing the chemistry examination among the four optional subjects (biology, chemistry, earth science, physics) for enter university. After administrating the chemistry problem solving ability test, the degree of familiarity to some problems and the degree of confidence of their answers in a Likert scale were asked to the students. Besides, the students were asked to place preference to the type of problems in order. The students scored better on the algorithmic problems than on the conceptual problems (pictorial and wordy problems), and were also most familiar with the algorithmic problems. The students were more confident of their answers on both of types pictorial and algorithmic problems, and preferred pictorial problems rather than both of types algorithmic and wordy problems.

• The Journal of Korean Association of Computer Education
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• v.19 no.4
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• pp.21-31
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• 2016

As the science and technology advances, the side effects of information and communications technology use become a social issue and the social demands to strengthen the informatics ethics in the curriculum of elementary and secondary schools becomes great. The contents of informatics ethics education is included in the current curriculum for elementary and secondary school, but they are embedded in multiple subjects without the holistic guidelines for the informatics ethics curriculum. Therefore it can have duplications of the contents or missing among subjects as those subjects are elective in the secondary school. In this study, we proposed a holistic curriculum for informatics ethics education and developed the education program based on subject integrated curriculum model and the cyber internet ethics education model to solve problems of informatics ethics education. The program was practised for 291 students of $10^{th}$ graders for 5 months and effectiveness was proven by the high attainment of ethics understanding. This subject integrated education program is proposed to solve the structural problems of informatics ethics education in 2015 curriculum.

• The Journal of Korean Association of Computer Education
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• v.20 no.3
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• pp.13-23
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• 2017

There have been many researches on educational effects and efficient education methods related to Informatics education for computational thinking. However, while the one of the human models specified in the national curriculum focuses on self-directed career development ability, research on Informatics education from the viewpoint of career education is deficient. This study aimed to analyze the effects of Informatics education on science high school students' career development ability and suggest implications. As a result, not the students' career recognition and career search ability, but also career choice and preparation also improved. However, it was analyzed that there is a significant difference according to the gender and the completion of the middle school Informatics education. This study is expected to contribute to the necessity of Informatics education and the direction of Informatics education research from the viewpoint of career education.

• Journal of the Korean earth science society
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• v.22 no.6
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• pp.469-479
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• 2001

This study investigated the trends in the number of applicants and mean score and applicants’ responses on the test items of Earth Science in the College Scholastic Ability Test (CSAT) implemented for 3 years (1999-2001). The percentage of applicants of science track were 43.14% in 1995, but reduced through 29.5% in 2001 to 26.92% in 2002 CSAT For elective subject, about 22% of science track students applied to Earth Science II which ranked third to Biology II and Chemistry II. In 1999, test items were developed to have the expected difficulty 40 ${\sim}$ 59% (6 items) to 60 ${\sim}$ 79% (10 items). But in 2001 every 16 items were developed to have difficulty 60 ${\sim}$ 79%, which was caused by the policy of so called ‘easy CSAT’. Thus the mean score of ‘Earth Science II’ was increased from 50.26 in 1999 through 64.47 in 2000, to 67.58 in 2001. Applicants were generally very good at solving test items focusing on process skills only and familar items but poor at solving test items related to the motion of the earth and planets and sea wave, especially items calling two or more concepts. Thus special measures to cope with the decrease in applicants of science track should be provided. And it is recommended to develop test items with wider range of difficulty and to reduce test items calling process skills only. And special consideration should be given to teaching the content area with poor achievement and high actual difficulty compared to the expected.

• Journal of Korean Home Economics Education Association
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• v.12 no.3
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• pp.157-170
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• 2000

A Study of Factors Affecting on High School Students’Choice of ’The Science of Home-Economics’Course in the 7th National Curriculum The purpose of this study is to explore what kind of factors make high school students decide to select ‘The Science of Home Economics’as one of the course among various in-depth elective courses in high school curriculum. an empirical survey was conducted by administering a structured survey questionnaire to 463 male and female students who attend in a college-bound high school in Taegu. The major findings are as follows: 1) There were significant differences between the choice group of ‘The Science of Home Economics’and non-choice group of ‘The Science of Home Economics’in learning motivation to 5 units of ‘The Science of Home Economics’student’s perception of the traditional role and progressive role of Home Economics education impression of Home Economics teachers, mother’s academic career, academic achievement in general and mother’s request for selection of ‘The Science of Home Economics’as an elective course. 2) Significant variables which influenced students’selection of ‘The Science of Home Economics’relatively were, in descending order, student’s perception of the progressive role of home economics education. impression of Home Economics teachers. coeducational schooling. student’s learning motivation to the ‘food’unit. student’s attitude for sex-role, academic achievement in general and mother’s request for selection of ‘The Science of Home Economics’as an elective course.