• Journal of Science Education
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• v.37 no.1
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• pp.203-220
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• 2013

The purpose of this study was to investigate how 'free inquiry' was implemented in middle school science classrooms. In order to do this, survey and interviews were administered. The subject of survey was 165 science teachers at 58 middle schools and interviewees were 4 teachers and 10 students. As a result, 49.6% of science teachers in school year 2010, and 34.1% in 2011 applied 'free inquiry'. Teachers applied 'free inquiry' during one semester, and they let the students select topic of 'free inquiry'. Teachers grouped students according to students' opinion or their gender and ability, and one group was consisted of 4 students. The effect of applying 'free inquiry' was that students improved the interest on science, science inquiry ability and self directed learning capability. Students were interested in doing 'free inquiry', and they wanted to do it again. Teachers claimed that it took much time and effort to apply 'free inquiry', and students lacked science inquiry skills and interest on science. The teachers who did not apply 'free inquiry' stated reasons such as the shortage of instructional time, and they didn't think that 'free inquiry' should be implemented. For the effective implementation of 'free inquiry', this study suggested that teachers should be recognized the intention of 'free inquiry', teaching-learning materials about 'free inquiry' be developed and provided, and laboratory assistants be employed.

• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.5
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• pp.687-693
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• 2013

This study is the design and implementation of digital textbooks for elementary school computer education based on smart phone. It suggests how to cultivate self-directed learning ability depending on the level and selection of individuals by maximizing on interaction as advantage of digital textbooks. As the content of the digital textbooks, this study used Excel's charting capabilities. As a result of the evaluation of elementary learners having a implemented digital textbook, execution time of creating a chart is reduced in comparison with paper-based textbook user group.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.10a
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• pp.873-875
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• 2013

정보기술 발전에 따라 정보 활용 및 처리 역량이 상승하면서 교육 환경의 지능화, 네트워크화로 기술간, 서비스 간 융 복합을 통한 다양한 학습 내용 및 방법이 출현하였으며, 최근 e-러닝 산업에서 스마트기기 보급 확산과 상황 적응적이고 자기 주도적 학습에 대한 소비자의 니즈가 증가하면서 새로운 형태의 교육시스템인 스마트러닝이 부각되고 있다. 이러한 교육 패러다임의 변화에 따라 기존의 교육 콘텐츠를 스마트기기에 적용하기 위해서는 콘텐츠 및 솔루션 구조의 개선이 요구되며, 또한 서비스 제공의 측면에서 다양한 교육 콘텐츠 연동과 교육 서비스 융합을 위한 표준 플랫폼 적용이 필요하다. 이에 본 논문에서는 JVM 환경의 PC 인터페이스를 통해 ePub 표준의 교육용 멀티미디어 콘텐츠 제작기능과 기존 서책형 파일 포맷의 자료 정보를 응용하기 위한 정보변환 모듈, 스마트 기기용 ePub 전자책 뷰어를 포함하는 통합 솔루션 소프트웨어인 ePub Solution을 설계하였다.

• Annual Conference of KIPS
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• 2010.11a
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• pp.189-192
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• 2010

분자 생물학을 통한 연구가 심화되면서, 생물학 정보는 기하급수적으로 늘어나고 있다. 그에 따라 바이오메디컬(생물학, 의학) 관련 논문들의 출판 및 등록 건수도 해마다 증가하고 있다. 그러나 바이오메디컬 문서들에서 유용한 정보를 추출하는 기술은 이러한 분야의 전문가 큐레이터(curator)에 의존한 경우가 많아서, 그 작업의 속도와 양적인 면에서 한계를 가지고 있다. 이러한 이유 때문에 바이오메디컬 문서를 기계학습을 통하여 분석하는 기법이 도입되기 시작하였다. 아직까지는 기계학습을 이용하여 구축된 데이터베이스가 소수에 불과하지만, 점차 증가하는 추세에 있다. 이러한 현 추이를 분석하고 향후의 추세를 예측하고자 텍스트마이닝 기술이 생물학과 의학 분야에서 어떻게 사용되며, 그 정보들이 어떻게 관리되는지 연구, 조사 하게 되었다. 현재 바이오메디컬 관련 데이터베이스들이 여러 기관 및 단체에 의해 구축 및 관리되고 있으며, 국가적인 프로젝트로서 이러한 데이터베이스들을 통합하는 과정을 진행하고 있다. 이처럼 국가기관의 주도하에 데이터베이스를 통합하여 관리하고자 하는 노력들이 계속되고 있어, 앞으로는 바이오메디컬 자료들을 검색하기가 보다 용이해질 것으로 생각된다. 텍스트마이닝을 이용하여 바이오메디컬 정보들을 추출하는 기술은 초기에는 공동 발생(co-occurence)과 같이 단순한 통계적 방법을 이용하였지만, 최근에는 다른 문서에서 추출된 정보와 기존의 정보들을 연계하여 새로운 정보를 추출해 내는 기법이 확산되고 있음을 알 수 있었다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.1
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• pp.326-337
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• 2020

This study examined the public interest in high school Korean language instruction and the universal design for learning (UDL) using the social big data analysis method. The observations from 10,339 search results led to the conclusion that public interest in UDL was significantly lower than that of high school Korean language instruction. The results of the Big Data Association analysis showed that 17.22% of the terms were found to be related to "curriculum." In addition, a survey was conducted on a total of 330 high school students to examine how their teachers apply UDL in the classroom. High school students perceived computers as the most frequently used technology tool in daily classes (38.79%). Teacher-led lectures (52.12%) were the most frequently observed method of instruction. Compared to the second-year and third-year students, the first-year students appreciated the usage of technology tools and various instruction mediums more frequently (ps<.05). Students were relatively more positive in their response to the query on the provision of multiple means of representation. Consequently, the lesson contents became easier to understand for students with the availability of various study methods and materials. The first-year students were generally more positive towards teachers' incorporation of UDL.

• The Journal of the Korea Contents Association
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• v.11 no.4
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• pp.468-476
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• 2011

A lack of basic academic skills of junior college students has negatively impacted on the quality of vacational education and student dropout prevention, and yet it is true that there still are unclear alternatives or solutions to come up with that concern. As a way to find out the actual levels of basic academic skills of junior college students and educational efforts to improve these skills, the study investigated prior studies and benchmarked strengths and weaknesses of the related educational programs and supporting systems operated by ten junior colleges around the nation. Further, the study addressed emerging issues and challenges related to basic academic skills, based on the case study of D college. Major research methodologies included literature review, surveys for students and faculty members and focus-group interviews of faculty members in order to examine the states of students' basic academic skills in the area of language, in particular. Accordingly, the study proposed several suggestions with which educational practitioners could assist in supporting students to acquire improved basic academic skills(such as the development of a competence-based curriculum, implementation of reliable diagnosis tools and supporting educational systems for evaluating students' basic academic skills and upgrading of diverse teaching and learning resources and methods).

• Journal of Internet of Things and Convergence
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• v.9 no.3
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• pp.35-43
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• 2023

This study tried to find out the applicability and effectiveness of the AI-based adaptive learning system in university classes by operating an AI-based adaptive learning system on a pilot basis. To this end, an AI-based adaptive learning system was applied to analyze the operation results of 42 learners who participated in basic mathematics classes, and a survey and in-depth interviews were conducted with students and professors. As a result of the study, the use of an AI-based customized learning system improved students' academic achievement. Both instructors and learners seem to contribute to improving learning performance in basic concept learning, and through this, the AI-based adaptive learning system is expected to be an effective way to enhance self-directed learning and strengthen knowledge through concept learning. It is expected to be used as basic data related to the introduction and application of basic science subjects for AI-based adaptive learning systems. In the future, we suggest a strategy study on how to use the analyzed data and to verify the effect of linking the learning process and analyzed data provided to students in AI-based customized learning to face-to-face classes.

• Proceedings of the Korean Information Science Society Conference
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• 2002.10d
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• pp.529-531
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• 2002

생체인식 시스템은 개인의 물리적/행동적 특성을 측정하여 신원을 확인하기 위한 시스템이다. 이러한 시스템에서 사용되는 특징들은 잡음 등에 의해서 쉽게 영향을 받기 때문에 매우 많은 변형들이 존재하고, 따라서 변형된 특징들을 효과적으로 다루기 위해 다양한 기계학습 방법들이 사용되고 있다. 그런데, 기존의 자료주도적인 방법들을 특정 생체인식 시스템에 적용하기 위해서는 시스템에 등록할 각 사람들로부터 충분히 많은 데이터를 획득해야하는 어려움을 겪게 된다. 또한 시스템에 미등록된 사람의 데이터가 제시될 가능성 등, 무한한 수의 변형이 존재하는 문제점을 갖고 있다. 이러한 문제점들로 인해 데이터의 분포특성을 분석하고 예측하는 것이 어렵다. 생체인식 시스템의 이러한 고유의 문제점을 극복하기 위해서는 새로운 효율적인 식별 및 검증 방법을 필요하다. 따라서, 본 논문에서는 통계적 가설 검증 이론에 기초한 간단한 방법을 제안하고, 실세계 데이터에 대한 실험을 통해 제안한 방법의 가능성을 확인한다.

• Journal of The Korean Association For Science Education
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• v.35 no.4
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• pp.629-648
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• 2015

This study is a case study examining how research-based 'authentic' science education program contextually facilitates students' learning on NOS as a process. We developed 'Becoming a Scientist' mentor-mentee program and applied it to six Korean 7th graders for 8 months. A mentor, who is also a researcher, provided scaffolding and coaching, and her mentees were to perform the whole process of science research, including selecting the research subject and questions, planning research design, doing experiments, collecting and analysing data, writing research paper, and experiencing poster presentation at an academic conference. The research questions are 1) What would the students experience at every step of their research process?, and 2) Which perceptions would they construct NOS as a process? Data include classroom observations, interview, mentor's journal, and students' learning products. The results show that the mentees have experienced their views of NOS as a process in various ways such as role of research question and purpose, validity of measured value, researcher's subjectivity in interpreting data, experience of making public and peer review, and significance of academic conference. This study has shown that students' actual experience in scientific research enhanced their views about NOS as process without explicit and reflective approaches. We defined 'authenticity' associated with not only with its similarity to what scientists do but to learner's identity as scientific researcher. Based on the situated learning theory, this study sheds light on the necessity of reconsideration about the meaning of authenticity and embodying authentic context in science education for better NOS learning.

• 대한공업교육학회지
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• v.42 no.1
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• pp.87-105
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• 2017

The purpose of this study was to verify that students' interest in team activities for problem solving, the effect of interest on it, and students' changes in perceptions and their behavioral characteristics in the process of problem solving. The study reviewed documents prepared by students, such as work sheets, descriptive questionnaires, works and their photos, student activity photos and observation journals of teachers. The results of this research are as below. First, a problem solving team activity for making a model car was considered an interesting assignment by more than 90% of male/female students. The fact that female students could be more focused on this assignment than male students was discovered. Interest in the assignment not only had an influence on the points from the start (the blueprint) to the end (model cars completed based upon the designs) of problem solving, but also provided the traction power behind the assignment. Second, the problem solving team activity allowed the students to change their existing recognition (thoughts) while positively taking a lead or indirectly utilizing various learning experiences (including experiences of failure). Third, $2^{nd}$ graders in middle school had a tendency to solve problems in dependently rather than to receive help from others when they encountered problematic situations.