• Journal of Energy Engineering
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• v.2 no.2
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• pp.133-138
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• 1993

환경(Environment)이라는 단어는 인간을 중심으로 한 유형, 무형의 주위 사방을 총체적으로 포괄하는 뜻을 지닌다. 만물의 주인은 인간이라는 인간중심주의적(anthropolatric) 의미를 내재하고 있기 때문에 진정한 환경운동가들은 환경이라는 단어의 사용을 배척하고 있으며 생태중심주의적(ecocentric) 단어인 상태(ecology)를 선호한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2012.01a
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• pp.153-157
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• 2012

이 연구는 자기조절학습전략 활용 과제기반언어학습을 영어수업에 적용한 후 학업성취도와 영어 학습태도 차원에서 그 효과성을 규명하고자 하였다. 먼저 학습자의 능동적인 학습과정을 도울 수 있는 자기조절학습전략 활용 과제기반언어 교수 학습 모형을 도출하였다. 이어서 초등영어 5학년 정규교육과정운영 틀에서 자기조절학습전략 활용 과제기반언어학습 수업을 설계하고 실제 적용하였다. 연구결과 첫째, 자기조절학습전략 활용 과제기반언어학습은 학업성취 상위, 중위, 하위 집단에 따른 학업성취도 변화에 대한 분석 결과 학업성취 상위집단과 하위집단 간에 유의미한 차이를 보였다. 둘째, 자기조절학습전략 활용 과제기반언 어학습은 영어에 대한 자아개념, 영어에 대한 태도, 영어에 대한 학습 습관으로 정의된 영어 학습태도의 모든 영역에서 유의미한 차이가 있었다. 자기조절학습전략 활용 과제기반언어학습은 학습자 중심 교육이라는 초등영어교육 추세를 고려할 때 교육현장에 유용하므로 자기조절학습력과 실제적 의사소통능력에 초점을 둔 보다 다양한 교수설계 연구가 요청된다.

• 한국HCI학회:학술대회논문집
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• 2009.02a
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• pp.1064-1068
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• 2009

인지모델(Cognitive Model)에 의한 사용성 평가는 실제 실험에 의한 방법에 비해 시간, 노력, 비용을 절감할 수 있다. 여러 인지모델 중 ACT-R(Adaptive Control of Thought Rational)은 인간의 모든 인지과정을 상세하게 묘사할 수 있어 다른 모델보다 정확히 인간의 과제 수행을 정량적으로 예측할 수 있다. 그러나 ACT-R 모델을 수립하기 위해서는 인간의 지각, 주의, 기억 인출 등의 처리 과정과 행동 선택 및 수행에 필요한 과제 수행 규칙을 매우 상세하게 분석 및 기술해야 하기 때문에, GUI(Graphic User Interface) 환경에서 운용되는 메뉴 인터페이스와 같이 다양한 시각적 정보의 처리가 요구되는 과제에 대한 모델을 수립하는데는 많은 시간과 노력이 요구된다. 이에 본 연구에서는 GUI 환경에서 전문가 수준의 과제 수행을 예측할 수 있는 간략화한 ACT-R 모델 수립 방안을 제안하고, 이를 이용하여 상용 통계 분석 소프트웨어의 과제 수행도를 예측하였다. 그 결과 실제 실험을 통한 측정 결과와 간략화한 ACT-R 모델의 예측 결과가 잘 일치하였으며 본 연구에서 제시한 간략화한 ACTR 모델이 메뉴 인터페이스의 사용성 평가에 효율적으로 적용될 수 있음을 확인하였다.

• Communications of Mathematical Education
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• v.31 no.1
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• pp.103-123
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• 2017

Mathematical tasks in general introduce and deal with real-life situations, and they derive to students' thinking fluently in solving the given tasks. The tasks might be considered as an important and significant factor to lead a successful mathematical teaching and learning situation. MiC Textbook is a representative one showing such good examples and tasks. This study explores concretely and in detail the cognitive demand level of mathematical tasks, by the subject of MiC Textbook. To accomplish this, this study is to reconstruct more elaborately the analysis framework developed by Hwang and Park in 2013. The framework basically was set up utilizing 'the cognitive demand level' suggested by Stein, et, al. The cognitive demand level is divided into two levels such as low level and high level. The low level is comprized of two elements such as Memorization Tasks(MT), Procedures Without Connections Tasks(PNCT), and high level is Procedures With Connections Tasks(PWCT), and Doing Mathematics Tasks(DMT). This study deals with the tasks on the area of 'data analysis and statistics' in MiC 1, 2, 3 level Textbook. As a result, mathematical tasks of MiC Textbook led learners to deal with and understand mathematical content for themselves, and furthermore to do leading roles for checking and reinforcing the content. Also, mathematical tasks of MiC Textbook are comprized of the tasks suitable to enhance mathematical thinking ability through communication. In addition, mathematical tasks of MiC Textbook tend to offer more learning opportunity to learners' themselves while the level of MiC Textbook is going up.

• Communications of Mathematical Education
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• v.33 no.2
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• pp.123-139
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• 2019

This study analyzed how problem-posing tasks included in Korean middle school mathematics textbooks were distributed in terms of content area, task type, and context of task to investigate that the mathematics textbooks are giving students ample opportunities for problem-posing activities. The analysis of 10 mathematics textbooks for first grade in middle school according to the revised mathematics curriculum in 2015 found that the problem-posing tasks contained in the textbooks are insufficient in quantity and not evenly distributed in terms of content areas. There were also more problem-posing tasks with relatively moderate constraints than those with strong or weak constraints in terms of mathematical constraints. In addition, there were more problem-posing tasks that were not requiring students to make a new context, and more often camouflage contexts were used. Based on this, implications for improving mathematics problem-posing tasks in mathematics textbook were suggested.

• The Mathematical Education
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• v.60 no.1
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• pp.61-76
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• 2021

The purpose of this study is to analyze the errors and difficulties which pre-service secondary teachers shows during the task modification in consideration of the cognitive demand and to provide significant implications to the pre-service teacher education program related to the modification of the mathematical tasks. In the pursuit of this purpose, tasks were selected from perpendicular bisector units and 24 pre-service teachers were asked to modify the tasks to higher and lower level tasks. After the modification activities, opportunities for reflection and modification were provided. The findings from analysis are as follows. Pre-service teachers had a difficulty to distinguish between PNC tasks and PWC tasks. Also, We identified the interference phenomena that pre-service teachers depended on the apparent elements of the task. Pre-service teachers showed a tendency to overlook the learning objectives and learning hierarchy during the task modification, and to focus on some types of task modification. However, pre-service teachers were able to have meaningful learning opportunities and extend the category of tools to technology including Geogebra through self-reflection and correction activities on task modification. The above results were summed up and we presented the implications to the task modification program in the pre-service secondary teacher education.

• The Mathematical Education
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• v.62 no.2
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• pp.257-268
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• 2023

The purpose of the study is to analyze the characteristics of open-ended tasks in terms of cognitive demands. For this purpose, we analyzed characteristics of open-ended tasks presented in the sequence units of three high school mathematics textbooks. The results of the study have revealed that low cognitive demand levels of open-ended tasks had characteristics including procedures within previous tasks or within those tasks. On the other hand, high cognitive demand levels of open-ended tasks had characteristics of actively exploring new conditions to gain access to what is being sought, requesting a basis for judgement, linking various representations to the concepts of sequences, or requiring a variety of answers. These results are significant in that they not only specified the characteristics of open-ended tasks with high cognitive demands in terms of the intended curriculum, but also provided a direction for the development of open-ended taks with high congitive demands.

• Electronics and Telecommunications Trends
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• v.29 no.5
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• pp.125-135
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• 2014

ICN(Information Centric Networking)은 데이터가 저장되어 있는 위치(where) 중심으로 동작하고 있는 현재의 인터넷 패러다임을 사용자의 최종 관심사인 데이터(what) 중심으로 이동하고자 하는 새로운 네트워킹 구조이다. 이 패러다임은 최근 들어 대두된 것은 아니며 이미 2000년대 초반부터 이러한 개념을 도입한 실험적 프로젝트들이 있어 왔다. 이러한 다양한 연구과제들은 세부적인 기술측면에서는 다소 차이가 있지만, 지향하는 목표 측면에서는 유사한 개념이라고 볼 수 있다. 하지만 데이터 중심 인터넷 구조에 대한 관심이 높아지면서 개별적 기술들을 아우르는 기술표준화에 대한 관심이 높아졌는데, 인터넷 선행기술을 연구하는 인터넷 연구 그룹(IRTF: Internet Research Task Force)에서는 이러한 표준화 요구를 수용하여 ICNRG(ICN Research Group)라는 연구그룹을 결성하고 2012년부터 관련 기술의 선행기술 표준연구를 시작하였다. 본고에서는 ICNRG에서 작업 중인 표준문서를 기반으로 이러한 ICN 기술에서의 연구과제를 검토해보고 ICN 기술을 검증/평가하기 위한 검증 시나리오에 대해서도 정리해 보고자 한다.

• Journal of Internet of Things and Convergence
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• v.5 no.2
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• pp.81-87
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• 2019

It is changing to the 4^th Industrial Revolution rapidly as the information age through the Internet is changing, and it is rapidly changing to the era of the IoT using all things. In education, with the change to the Internet of Things, interest in education for the 4th Industrial Revolution is increasing. It is necessary to change from NetPBL method using Internet to T-PBL using Triz. In this paper, we focus on the task-based learning (T-PBL) method using Triz and examine the necessity and importance of its use. We propose a teaching model using Triz as a tool for T-PBL. Triz is being used as a tool to solve problems in creative ways. We will design a model applying Triz to the blockchain system security class related to the IoT.

• The Journal of Korean Institute for Practical Engineering Education
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• v.4 no.1
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• pp.22-29
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• 2012

Students have to effectively get lots of knowledge and technique for practical education. Usability is one of the most important factors that have to be considered for user-centered design. Students who study design have to recognize the importance of usability and learn the method of problem solving considering usability. For this, the application of project-based and participatory learning for usability education was studied. Study team was organized including graduate, undergraduate, and high school students. Students team identified a research topic, and then studied the topic. Usability evaluation and design improvement was performed in this study. Students could learn usablity evaluation method and design method through the process.