• Journal of Science Education
• /
• v.37 no.2
• /
• pp.278-293
• /
• 2013

The purpose of this study was to analyze the characteristics of multiple-choice test items used in assessment of high school integrated science according to 2009 revised curriculum. For the analysis of the tendency of item setting, we devised an analytic framework specific to integrated science, and analyzed the characteristics of items by applying the devised framework and item response theory. The results of the tendency of item setting revealed that most of items run counter to the intent of integrated science in terms of item resource, integration extent, and cognitive level, which means teachers are stick to separative method in teaching-learning and assessment of integrated science. The results of the analysis applying item response theory showed that item difficulty was appropriate and item discrimination was considerably high. However, there was no relevance between the tendency of item setting and qualitative characteristics of the items. We also discussed some agendas to improve the teaching-learning and assessment of integrated science based on the results of this study.

• Journal of The Korean Association For Science Education
• /
• v.39 no.4
• /
• pp.499-510
• /
• 2019

History and philosophy of science has been consistently emphasized in science education for various purposes. In accordance with the introduction of the 2015 revised curriculum, history of science could be implemented for the curriculum; designing well-organized learning strategies is required. This study examines the case of undergraduate students who solved the convergence problem based on history and philosophy of science in the problem-based learning program. In particular, this study tries to find strategies for integrated education by comparing the problem structuring process and the meaning of problem solving experience of science/engineering and humanities/social sciences students. Participants were three students majoring in science/engineering and humanities/social sciences. Participants constructed and solved their own convergence problems by integrating the domains that were familiar to them into history and philosophy of science. While the process of structuring the problems and the use of history and philosophy of science were similar, there were differences between the science/engineering and humanities/social sciences students' point of view on history and philosophy of science and the other domain which they choose. Moreover, there were differences between the two group's meanings of problem solving experience. Finally, based on the results of this study, history and philosophy in science provided some implications in the context of science education and integrated education.

• Journal of the Korean Society of Earth Science Education
• /
• v.13 no.1
• /
• pp.121-133
• /
• 2020

This study proposes a lesson design framework to design a science and engineering integrated lesson in a meaningful and easy way based on engineering design, which is the core feature of STEM education. The science and engineering integrated lesson design framework is developed based on the analysis of domestic and foreign theoretical and practical research papers and expert discussion on science and engineering integrated education as well as the feedbacks from science teachers. The science and engineering integrated lesson design framework uses engineering design as the main pedagogical method. The framework includes the core elements of the engineering integrated lesson suggested in previous studies and the achievement level of each grade group suggested in NGSS and provides a way for teachers to easily introduce engineering design into science classes. In addition, the framework developed in this study complements the shortcomings of the complicated Korean STEAM education framework. It can also provide specific guidance to in-service teachers as well as pre-service teachers to easily understand and apply engineering design and problem solving processes to science and engineering integrated lessons.

• Journal of Science Education
• /
• v.40 no.2
• /
• pp.166-188
• /
• 2016

The purpose of this study was to analyze the utilization of history of science and STEAM and the elementary school teachers' perceptions about design-based STEAM instruction applying the history of science in science class. To research the utilization of the history of science and STEAM in elementary science class, educational value of design-based STEAM instruction applying the history of science, the questionnaire was revised based on research conducted by Lee & Shin(2014), Park et al.(2010), Shin & Han(2011) and developed questionnaire a total of 20 questions. It was administered to reply the questionnaire to 201 teachers of elementary school in D and G area. The results of this study were as follows: elementary school teachers did not teach actively the history of science, made it read students by simply introducing himself. They did not teach actively STEAM due to not enough time(busy to take a magnitude). They were difficult to teach, but the most focused on the 'Creative Problem-solving' process. And elementary school teachers perceived positively about the educational value of design-based STEAM instruction applying the history of science. Especially, they perceived that it can help elementary school students find a hint for solving the problem through examples of cases of scientific principles and a scientist. In conclusion, it implicates that it is need to regard elementary school teachers' perceptions on application of the history of science and STEAM, and develop specific design-based STEAM program applying the history of science in order to be applied successfully in elementary school for the STEAM settlement.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2020.11a
• /
• pp.702-704
• /
• 2020

연구자의 R&D활동은 연구기획에서부터 과제제안, 과제수행 및 실험, 연구자간 공유와 협업, 결과해석, 성과확산 및 성과관리 등에 이르기까지 다양한 영역에서 이루어지고 있다. 그러나 이러한 활동을 지원하는 통합서비스가 존재하지 않아 각각의 서비스를 찾아서 융·복합적으로 활용하기는 쉽지 않다. 본 연구에서는 R&D활동에 필요한 정보와 데이터, 서비스, 고성능 컴퓨팅 인프라를 연계·융합 활용할 수 있는 통합서비스 개발을 위한 방법을 제시한다. 그리고 통합서비스 개발 사례로 ScienceON을 소개한다.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2023.01a
• /
• pp.447-448
• /
• 2023

본 연구에서는 비전공자들을 위한 디지털 교육을 위하여 노 코드 프로그램을 활용한 정보, 수학, 과학 융합교육 교양 강좌를 개발하였다. 노 코드 프로그램으로는 오렌지3 데이터 마이닝을 선정하였는데, 이는 데이터 분석, 시각화, 머신러닝 모델의 활용이 용이하다는 강점을 가지고 있다. 또한, 산업환경 변화에 대비하는 핵심 교과인 과학, 수학, 정보의 중요성과 데이터 분석과의 밀접성을 고려하여 교육 내용을 융합할 수 있도록 선정하였다. 개발된 교육 프로그램은 8인이 전문가 검토 결과 내용 타당도가 확보되었음을 확인할 수 있었다. 추후 연구에서는 이 강좌를 대학의 학부생에게 적용하여 그 효과성을 확인해 보고자 한다.

• Journal of The Korean Association For Science Education
• /
• v.34 no.3
• /
• pp.321-330
• /
• 2014

Changes are expected in the future, and the future society will expect changes in education. Science curriculum needs to reflect such demands for changes in the future of education. Hence, this study explored ways to reflect the changes demanded by the future society in science education. In this study, we investigated the major issues and directions for improvements based on the findings from questionnaires given to 447 primary and secondary school science teachers as well as in-depth interviews with 12 experts. We explored the problems of the 2009 revised national science curriculum including organization of science elective courses, fusion 'science' as an elective course, intensive course-taking of science, career-focused science curriculum, variation of completion units in science elective courses, and fairness of science elective course selection in college entrance. In addition, we proposed ways to organize science curriculum around core competencies and STEAM education suggested by science teachers. According to the results, we need to add such key competencies as basic learning abilities, self-identity, and moral competencies to science curriculum in addition to existing key competencies including problem solving and communication. Regarding the fusion science, experts contended that convergence of science courses should come before that of science and other subjects, and that STEAM with science as the axis was the desired form of convergence. We also need to establish a curriculum development center that exclusively focuses on science curriculum research and development.

• The Journal of the Acoustical Society of Korea
• /
• v.38 no.1
• /
• pp.128-138
• /
• 2019

In this paper, we present fusion methods for two different lofargrams. Since the conventional method synthesizes the lofargrams using frequency spectrum, it has limited performance in fusion of tonal signals which have two-dimensional information of the time-frequency domain. Proposed algorithm uses a two-dimensional directional bilateral filter for preprocessing and fuses two lofargrams based on comparison of local anisotropy of the lofargrams. After noise is suppressed and tonals are sharpened, the local anisotropy can be used as a criterion to divide tonals and noise. The experiment results using simulated data and real data showed that the proposed algorithms result in similar or lower noise level of the fused lofargram than conventional algorithms and decrease tonal omission in fusion process.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2018.05a
• /
• pp.265-267
• /
• 2018

4차 산업혁명은 2016년 스위스 다보스에서 열린 세계경제포럼(WEF)의 주요 이슈였다. 4차 산업혁명 시대에서 요구되는 IT융합 기술에는 사물인터넷 환경에서 모든 사물이 사이버 세계를 통하여 연결되어 정보를 수집하고 축적하며, 축적된 빅데이터를 기반으로 인공지능 알고리즘을 활용하는 기술 등이 필요하다. 이와 같은 IT융합 기술과 관련하여 4차 산업혁명 시대를 대비하여 산업체에서 필요한 실무적인 IT융합 인력 양성이 컴퓨터 관련학과의 주요 교육 내용으로 요구되고 있다. 이러한 시대적 상황에서 하나의 접근 방법으로 대두되는 것이 NCS 기반의 교육과정에 기반을 둔 IT융합 인력의 양성이다. 이 논문에서는 우리나라 산업체에서 요구하는 IT융합 인력 양성을 위하여 컴퓨터과학 전공을 위한 NCS 교육과정을 제시하고 분석한다.

• Proceedings of The KACE
• /
• 2018.08a
• /
• pp.99-102
• /
• 2018

제4차 산업혁명 시대에 접어들면서 창의융합형 인재에 대한 관심이 고조되고 있다. 특히 과학, 수학, 정보 교육 진흥법의 제정 및 시행과 함께 컴퓨팅 사고력을 바탕으로 실세계의 문제를 창의적이고 융합적으로 해결할 수 있는 사고력의 중요성이 커지고 있다. 따라서 본 연구에서는 과학고 학생들의 다양한 융합적 문제 해결 능력을 신장시킬 수 있는 컴퓨팅 사고력 기반의 소프트웨어 융합교육 프로그램을 개발하고, 그 효과를 탐색하고자 한다. 본 연구의 결과는 학교 현장에서의 융합 교육을 위한 이해와 지식을 얻기 위한 기초자료로서 활용되고, 향후 체계적인 실험연구의 방향을 제시하는데 기여할 것이다.