• 한국정보교육학회:학술대회논문집
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• 2008.01a
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• pp.85-90
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• 2008

현재 학교의 컴퓨터 교육이 소프트웨어 활용 측면에서 벗어나 컴퓨터과학 교육을 강화하는 쪽으로 방향을 전환하고 있다. 특히 2005년에 개정된 정보통신기술 운영지침에 따르면 초등학교에서부터 알고리즘을 학습 내용으로 다루도록 하였으며 이에 따라 초등학교 현장에서도 알고리즘을 쉽고 효과적으로 지도하기 위한 다양한 교육 방법 연구가 필요해졌다. 현재까지 초등학생 대상의 컴퓨터과학 교육 연구는 대부분 초등학교 고학년을 대상으로 구체적인 조작과 활동 중심으로 제한되었다. 이에 본 연구에서는 정렬 수행 과정이 시뮬레이션되도록 제작한 애니메이션 컨텐츠를 통해 여러 알고리즘의 방법을 경험하도록 하는 ICT 기반의 알고리즘 교수-학습 과정을 설계하여 저학년에 적용하고 성취도와 학생들의 반응을 분석하였다.

• Journal of Science Education
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• v.38 no.3
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• pp.718-736
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• 2014

This study was intended to determine PCK of the middle school science teachers on Mendelian genetics and factors influenced to form their PCKs. Two science teachers with biology major with a teaching experience over 5 years were chosen as the subject. Data were collected by class observation, semi-structured interview, teacher questionnaire survey, Content Representation and Pedagogical and Professional-experience Repertoire. The collected data were analyzed based on Magnusson's PCK for science teaching consisting of five components: (a) the orientation toward teaching science, (b) the knowledge of science curriculum, (c) the knowledge of students' understanding, (d) the knowledge of assessment, and (e) the knowledge and belief in the instructional strategies to teach science. Teachers could have the orientation toward teaching science served as an assisting role to support students' abilities. Both subject teachers seemed to focus on giving lectures. Their efforts to improve students' exploration methods and abilities were not expressed enough in their real classes and they found that students struggled to understand Mendelian genetics. Therefore, they should have explained them in an easier way and worked harder to make their students understood accurately and applied basic and advanced concepts of Mendelian genetics. They found students' preconception and misconception regarding Mendelian genetics and wished to enhance their learning effects by various teaching strategies such as correcting misconception, adding the history of science and simply assessing students' affirmative domains. It was also found that factors influenced to form PCK regarding Mendelian genetics by both teachers were as follows: teacher's personality and endeavor, textbooks and guidance books, schools and their circumstances, teaching experience, experience as a learner, interaction with their colleagues, and university curriculum. Both teachers said that it was important for teachers to make every efforts to give better classes.

• Journal of the Korean Chemical Society
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• v.57 no.6
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• pp.830-844
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• 2013

The purpose of this study were to analyze characteristics of pre-service chemistry teachers' practice teaching and to investigate the relationship between their practice teaching characteristics and the view of learning. Three pre-service chemistry teachers were selected for this study. Their 9 practice teaching videos that recorded during practice teaching were observed, transcribed, and analyzed. Responses of questionnaires about their view of learning and interviews were transcribed and analyzed. Almost all of the characteristics of pre-service teachers' practice teaching seemed to be reflected in their view of learning. Pre-service teacher K had a lot of constructive view of learning, so comparatively many features of constructivism was presented in practice teaching. Pre-service teacher M had a lot of traditional view of learning, so many traditional features appeared in practice teaching. However, sometimes pre-service teachers' view of learning did not appear to their practice teaching because of several factors. In particular, a few cases that constructive view of learning was not reflected in the practice teaching appeared, especially pre-service teacher H. Factors were the practice school's conditions and the effects of tutors.

• Journal of The Korean Association of Information Education
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• v.6 no.2
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• pp.163-178
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• 2002

WBI as new instructional method is known to be superior to the traditional face-to-face education method with regard to cost, time and effectiveness of learning. However, WBI lacks the humanity education that teaches human nature such as cooperative spirit or morality, since WBI delivers the knowledge in a mechanical way. The objective of this study is to design and implement Web-based humanity education system that supplements WBI. The system is designed to promote the intimate relation, reliability, and openness between teacher and student. Also, this system encourages the students to experience an affirmative human relation through group activities. In additions, this system promotes parents to join together for improving their understanding of children's learning process.

• Journal of The Korean Association For Science Education
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• v.43 no.4
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• pp.403-414
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• 2023

In this study, we examined the adaptive practices of science teachers in their classrooms and their perspectives on the distinguishing features of these practices within science subjects. Our analysis comprised 339 cases from 128 middle and high school science teachers nationwide, and 199 cases on the characteristics of adaptive practices in science disciplines. The primary findings were as follows: First, the most significant characteristic of adaptive practice in science disciplines pertained to experimental procedures. Within the 'suggestion of additional materials/activities' category, the most frequently cited adaptive practice, teachers incorporated demonstrations to either facilitate student comprehension or enhance motivation. Additionally, 'experimental equipment manipulation or presentation of inquiry skills' emerged as the second most common adaptive practice related to experiments. Notably, over 50% of teacher responses regarding the characteristics of adaptive practices in science pertained to experiment guidance. Second, many adaptive practices involving difficulties experienced by students in learning situations were presented, particularly in areas such as numeracy and literacy. Many cases were related to the basic ability of mathematics used as a tool in science learning and understanding scientific terms in Chinese characters. Third, beyond 'experiment guidance', the characteristic adaptive practices of science subjects were related to 'connections between scientific theory and the real world', 'misconception guidance in science', 'cultivation of scientific thinking', and 'convergence approaches'. Fourth, the cases of adaptive practice presented by the science teachers differed by school level and major; therefore, it is necessary to consider school level or major in future research related to adaptive practice. Fifth, most of the adaptive action items with a small number of cases were adaptive actions executed from a macroscopic perspective, so it is necessary to pay attention to related professionalism. Finally, based on the results of this study, the implications for science education were discussed.

• Journal of Science Education
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• v.38 no.1
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• pp.78-95
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• 2014

Students' interest and motivation of a lesson can be deeply influenced by how their teacher starts his or her lesson. So the introduction part of math classes should be very carefully and thoughtfully designed. The goal of this study is to serve the foundation for developing the practical types of introduction part of math classes and to draw the implications for planning and teaching math classes. For these, 19 lesson plans titled by 'volume of cylinders' composed by elementary teachers and 2 lesson videos on the internet are analyzed. Finally, seven types of introduction parts of math class are probed and several implications are suggested.

• Journal of The Korean Association For Science Education
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• v.31 no.5
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• pp.758-769
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• 2011

This study was designed to investigate the relations of motivation to related variables, and the motivation by student's variables basically through measure of motivation system about science learning. For this, 496 fourth-grade students and 425 eighth-grade students were required to accomplish a questionnaire on behavioral inhibition/activation system about science learning (SL-BIS/BAS), and self-efficacy. Based on these materials, SLBIS/BAS by student's variables and relations between the system to self-efficacy were analyzed. The result of this study shows the following:First, the sensitivity about SL-BIS in the eighth-grade was higher than in the fourth-grade. But sensitivity about SLBAS and self-efficacy in the eighth-grade was lower than in the fourth-grade Hence, the difference in sensitivity about SL-BIS/BAS agree with difference in motivation. Second, there were low negative correlation with SL-BIS and self-efficacy, and positive correlation with SL-BAS and self-efficacy. In addition, two systems account for 41% of self-efficacy, it showed that SL-BIS/BAS relates to self-efficacy. Through the results of this study, relations of motivation to related variables, and the motivation by student's variables were identified. These results would be helpful for teachers to understand the difference about motivation by students' variables and to make a plan for the appropriate strategies for learners.

• Journal of the Korean earth science society
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• v.21 no.1
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• pp.13-21
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• 2000

In spite of the benefits of field studies, field surveys have not well performed in secondary school. Although many field sites have been developed lately, most field guidebooks describe the geological formations at the outcrops professionally so they can not be used by secondary school students. It is necessary to develop the field study program with which earth science teachers can do field activities easily rather than the one of a highly technical nature. The purpose of this study is to develope a secondary school geology course and to help earth science teachers practice it by providing the efficient teaching methods for the field study

• The Journal of Bigdata
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• v.5 no.2
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• pp.53-67
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• 2020

This study employees a supervised learning prediction model to detect nonconformity in advance of processed food manufacturing and processing businesses. The study was conducted according to the standard procedure of machine learning, such as definition of objective function, data preprocessing and feature engineering and model selection and evaluation. The dependent variable was set as the number of supervised inspection detections over the past five years from 2014 to 2018, and the objective function was to maximize the probability of detecting the nonconforming companies. The data was preprocessed by reflecting not only basic attributes such as revenues, operating duration, number of employees, but also the inspections track records and extraneous climate data. After applying the feature variable extraction method, the machine learning algorithm was applied to the data by deriving the company's risk, item risk, environmental risk, and past violation history as feature variables that affect the determination of nonconformity. The f1-score of the decision tree, one of ensemble models, was much higher than those of other models. Based on the results of this study, it is expected that the official food control for food safety management will be enhanced and geared into the data-evidence based management as well as scientific administrative system.

• Journal of The Korean Association For Science Education
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• v.37 no.4
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• pp.553-564
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• 2017

This study investigated the change of pre-service elementary teachers' professional visions through video-based reflection on science teaching with focus on their attention and pedagogical reasoning about student learning. Specifically, we compared two reflection cycles before and after pre-service elementary teachers went through the collaborative video-based reflection process in a professional learning community. The primary data were collected from eight pre-service elementary teachers and included their science lesson plans, videotaped lessons, video-reflection papers, and transcripts from the interviews. Pre-service elementary teachers' attention was categorized in five aspects: classroom management & control, teacher's instruction, students' thinking & learning, subject knowledge, and assessment. The level of their pedagogical reasoning about student thinking and learning was determined with six levels based on the number of evidence, evidence area, and evidence type. The findings revealed that 1) individual reflection is not enough - collaborative reflection is essential to change their attention toward students learning and thinking 2) pedagogical reasoning levels increase gradually throughout the individual and collaborative video-based reflection processes. The participants not only attributed student learning solely to the characteristics of students but also connected it with their own instruction or science content knowledge and used different types of evidences as they went through two reflection cycles. Implications for using video in the teacher education program were discussed.