• 대한화학회지
• /
• 제60권6호
• /
• pp.428-435
• /
• 2016

Effective mastering and learning of basic organic chemical concepts is pivotal to ensure students continue to excel to the higher levels of organic chemistry learning. Concept learning is crucial for first-year organic chemistry students so that they can comprehend and understand a concept better and able to make connection to problems. In the present paper, the authors have implemented the Interactive Anonymous Quiz (IAQ) with "must-have" features in the organic chemistry course as a teaching tool to instill students' interest and enhance conceptual understanding in organic chemistry. The effectiveness of this activity was examined and evaluated through students' reflective writing. Students showed positive learning outcome on the implemented activity as reflected by the reflective writings. In addition, this activity could be employed as an activity to check on students' concept understanding, to instill students' interest in organic chemistry course and to improve on students' weakest topic in organic chemistry in the future classes.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제14권1호
• /
• pp.183-200
• /
• 2020

This paper presents an efficient interactive framework for perspective scene completion and editing tasks, which are available largely in the real world but rarely studied in the field of image completion. Considering that it is quite hard to extract perspective information from a single image, this work starts from a friendly and portable interactive platform to obtain the basic perspective data. Then, in order to make this interface less sensitive, easier and more flexible, a perspective-rectification based correction mechanism is proposed to iteratively update the locations of the initial points selected by users. At last, a complanate mesh is generated by the geometry calculations from these corrected initial positions. This mesh must approximate the perspective direction and the structure topology as much as possible so that the filling process can be conducted under the constraint of the perspective effects of the original image. Our experiments show the results with good qualities and performances, and also demonstrate the validity of our approaches by various perspective scenes and images.

• Bulletin of the Korean Chemical Society
• /
• 제31권8호
• /
• pp.2219-2222
• /
• 2010

A density functional theory (DFT) study of $CO_2$ adsorption on barium oxide (BaO) adsorbents is conducted to understand the chemical activity of the oxygen site on the BaO (100) surface. This study evaluated the adsorption energies and geometries of a single $CO_2$ molecule and a pair of $CO_2$ molecules on the BaO (100) surface. A quantum calculation was performed to obtain information on the molecular structures and molecular reaction mechanisms; the results of the calculation indicated that $CO_2$ was adsorbed on BaO to form a stable surface carbonate with strong chemisorption. To study the interactive $CO_2$ adsorption on the BaO (100) surface, a pair of $CO_2$ molecules was bound to neighboring and distant oxygen sites. The interactive $CO_2$ adsorption on the BaO surface was found to slightly weaken the adsorption energy, owing to the interaction between $CO_2$ molecules.

• 아동학회지
• /
• 제38권2호
• /
• pp.119-132
• /
• 2017

Objective: This study aimed to examine the longitudinal relations of children's temperamental attributes (i.e., emotionality, activity, and sociability) and maternal responsiveness to overall and specific externalizing/internalizing behavior problems during the preschool period. Methods: Data (N=1,438) from the 4th and 6th wave of Panel Study on Korean Children (PSKC) were used in a series of hierarchical regression analyses. The analyses were conducted to determine the additive and interactive effects of maternal responsiveness and temperamental attributes of children at the age of 3 years on the broadband and narrowband scales of their behavior problems at the age of 5 years. Results: Overall, results confirmed the additive and interactive effects of maternal responsiveness and temperamental attributes on the levels of different domains of behavior problems. Examination of the interactive effects showed that maternal responsiveness was more strongly related to some behavior problems for temperamentally vulnerable children as compared to children with less temperamental vulnerabilities. Conclusion: The findings suggested that the beneficial effects of positive parenting on the development of behavior problems might be more pronounced for temperamentally vulnerable than for less vulnerable children.

• 디지털콘텐츠학회 논문지
• /
• 제17권5호
• /
• pp.425-432
• /
• 2016

스마트 교육을 위해 교사가 스스로 3D 융합 콘텐츠를 쉽게 제작할 수 있는 저작도구는 거의 없다. 본 연구는 스마트 교육을 위한 교사용 인터랙티브 3D 융합 콘텐츠 저작도구를 제안하고 설계하였다. 이를 위해, 스마트 교육 환경에서 교사의 저작환경을 조사하고, 교사들의 요구사항을 조사하였다. 이런 조사를 바탕으로, 스마트 교육을 위한 3D 융합 콘텐츠 저작도구의 기능요건과 설계안을 도출하였다. 현장 교사 그룹을 통해 도출된 설계안의 만족도 조사를 실시하였다. 본 연구 결과를 토대로 스마트 교육을 위한 인터랙티브 3D 융합 콘텐츠 저작도구를 구현할 예정이다.

• 한국수학교육학회지시리즈E:수학교육논문집
• /
• 제21권2호
• /
• pp.199-225
• /
• 2007

초 중 고등학교 확률 및 통계교육 시 우리는 통계패키지로서 R을 사용할 수 있다. R은 대화식 처리방식을 따르기 때문에 배우기가 쉽다. 또한 R에서의 그래픽스는 아주 강력하다. 가장 큰 장점은 R의 사용이 무료라는 것이다. 이러한 많은 장점을 갖고 있는 R을 초 중 고등학교 확률 및 통계교육 현장에서 사용하는 표준 통계패키지로서 고려할 필요가 있다.

• 한국수학교육학회지시리즈D:수학교육연구
• /
• 제15권2호
• /
• pp.141-158
• /
• 2011

In recent years, an increasing number of viewpoints hold that students should be engaged in a learning environment where understanding and knowledge transfer take place. This study introduces Mathematics Created by You (MCY)-mentoring program, which allows students to construct artefacts that are required to learn. This program is online-based and so can be shared by several people and mathematics leaning takes place through interactions within this carefully designed environment. Also, MCY intends to provide students a series of sequential activities related to creative play, creative learning and creative inquiry based on a Constructive and interactive environment. Furthermore, a creative activity- constructing a creative product using building blocks- was presented as an example. Finally, we investigate the pedagogical implications and suggest directions for the further development.

• 국제학술발표논문집
• /
• The 6th International Conference on Construction Engineering and Project Management
• /
• pp.573-577
• /
• 2015

Safety is paramount for construction industry throughout the world. Human errors which contribute to more than half of construction accidents, could be proactively prevented through effective education and training methods. Although Virtual Reality (VR) and Augmented Reality (AR) have gained much attention in various disciplines, few studies applied them for construction safety education. This research presents a new approach in construction safety education by utilizing VR and AR. The vision of aligning teaching & learning strategies is examined in order to ensure the potential benefits of the new method. This innovative approach shifts safety education from "Listen, and I will forget. See, and I may remember" towards "Practice, and I understand".

• 한국전자통신학회논문지
• /
• 제6권4호
• /
• pp.511-516
• /
• 2011

최근에 컴퓨팅 기술의 발달과 체감형 콘텐츠에 대한 관심이 높아지면서 교육기관과 문화 시설에서 유아 및 청소년들을 대상으로 한 체험 학습 및 엔터테인먼트적인 성향이 높은 체감형 시스템을 요구하고 있고 투자를 하고 있다. 본 논문에서는 RFID Reader와 Tag 간 1356MHz 대역을 사용하고, Arduino와 다양한 센서들도 함께 적용한 교육용 인터렉티브 지구본 시스템을 제안하였다. 센서가 부착된 능동형 태그를 지구본 속에 부착하는 방법을 이용하여, RFID Reader, Arduino 및 센서와 Google Earth COM API의 연동을 통한 피지컬(Physical) 컴퓨팅 교육용 시스템을 구성하였다.

• 공학교육연구
• /
• 제6권2호
• /
• pp.30-37
• /
• 2003

본 논문에서는 자바 애플릿과 플래쉬를 이용하여 웹 기반의 전기기기 학습용 컨텐츠를 개발하였다. 컴퓨터 분야의 컴포넌트 기반의 소프트웨어 개발기법을 도입하여, 사용하기에 단순하고 편리한 자바 빈즈 또는 플래쉬 컴포넌트를 먼저 개발하고, 이를 활용하여 전기기기 학습용 컨텐츠를 개발하였다. 개발된 컨텐츠는 높은 상호작용 기능을 가지고 있어서, 학습자가 흥미를 갖고 학습할 수 있고, 풀이 절차를 반복적으로 확인할 수 있으며, 복잡한 전기, 기계적 개념을 쉽게 이해할 수 있다. 학습 컨텐츠를 통하여 기본개념이 설명되므로 강의자의 수업부담이 줄어들 수 있으며, 교실수업에서는 더 깊이 있는 주제를 다룰 수 있으므로 수업의 질적 향상이 기대된다.