• 한국초등과학교육학회지:초등과학교육
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• 제25권spc5호
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• pp.532-547
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• 2007

The purposes of this study were to investigate the creative science problem solving (CSPS) process amongst scientifically-gifted students and average students through the qualitative think-aloud research method, and to compare the differences in their CSP, scientific knowledge, scientific process skills, creative thinking, and finally, the affective domain used in their CSPS. For the purposes of this study, two scientifically-gifted 6th grade students and one average student were selected. The results show that one gifted student with good creative thinking skills exhibited better performance in CSPS than the other gifted student, who had the highest level of scientific knowledge. In the case of the average student, in spite of her high level of factual knowledge, she had difficulty in proceeding in CSPS due to her shallow scientific knowledge along with her low level of understanding of the given problem. This study highlights the importance of considering the factors which influence successful CSPS and which can play an important role in the education of scientifically-gifted children. These factors were identified as scientific knowledge, understanding of the scientific process, creative thinking, the affective domain, and science problem solving skills.

• 한국정보시스템학회지:정보시스템연구
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• 제18권3호
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• pp.111-134
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• 2009

Today many owners of Web sites are looking to user's satisfaction survey as a key means of measuring the usability of a Web site. While it is preferred for it simplicity and ease of use, this survey method is not without potential risks. This paper focuses on showing that the existing practice of questionnaire-based usability measurement is subject to human recall errors, and that such flaws can be reduced when the questionnaire survey is followed by the users hands-on experience of the site. An empirical study was conducted, and the results indicate that the above speculation holds true. Even if respondents felt highly confident about their responses on a recall survey, a hands-on experience with a focal Web site increased the extent to which the respondents were satisfied with the shopping mall site. This indicates that a user's perception of the quality of a Web site may be distorted or lost as time goes by. In addition, the findings have shown that the use of the verbal protocol analysis method can reveal critical information that can help track the root causes of Web site usability problems, thereby helping to develop site enhancement strategies. The paper concludes with directions for future research.

• 한국과학교육학회지
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• 제14권2호
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• pp.143-158
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• 1994

This study aims to identify the characteristics of gas phase problem solving of college freshmen. Four students were participated in this study and solved the problem by using think-aloud method. The thinking processes were recorded and transferred into protocols. Problem solving stage, the ratio spended in each solving stage, solving strategy, misconceptions, and errors were identified and discussed. The relationships between students' belief system about chemistry problem solving and problem solving characteristics were also investigated. The results were as follows: 1. Students felt that chemical equation problem was easier than word problem or pictorial problem. 2. When students had declarative knowledge and procedural knowledge required by given problem, their confidence level and formula selection were not changed by redundunt information in the problem. 3. When the problem seemed to be difficult, students tended to use the Means-End or Random strategy. 4. In complicated problems, students spent longer time for problem apprehension and planning. In familiar problems, students spent rather short time for planning. 5. Students spent more time for overall problem solving process in case of using Means-End or Random strategy than using Knowledge-Development strategy.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2013년도 춘계학술대회
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• pp.165-166
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• 2013

기존 인터페이스 디자인에 대한 연구에서는 자연스럽고 편안한 사용을 통한 효율적인 의미 전달 방법을 제시하기 위한 전제로 인간이 지각하고 행동하고 사고하는 원리에 대한 설명을 언급하고 있다. 본 연구는 이러한 편안한 사용이 사용자의 편의성과 연관이 있으며, 편의와 효율은 인간의 감성과 연결되어 있을 것이라는 기초 가설에서 시작 되었다. 본 연구의 목적은 시각적 메타포 요소가 사용자의 감성에 미치는 영향에 대한 분석을 통해 기존 연구가 주로 메타포를 언어적 수사의 표현으로 이해하는데 반해 메타포의 시각적 요소가 인터페이스의 편의성과 친밀도에 중요한 역할을 한다는 것을 밝히는 데 있다. 이를 위해 메타포의 개념과 감성디자인의 개념과 함께 관련 선행연구를 고찰하고 프로토콜 분석을 통해 메타포의 요소를 피 실험자가 구두화하는 과정을 통해 감성에 미친 영향을 분석 할 것이다.

• Perspectives in Nursing Science
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• 제5권1호
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• pp.17-31
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• 2008

Purpose: The purpose of this study was to evaluate the usability of a prototype personal digital assistant (PDA)-based decision support system for the management of obesity through usability testing with end-users (Advanced Practice Nurses [APNs]) prior to its implementation in clinical settings. Methods: This descriptive study used observational and think aloud techniques to address the research question: what usability problems are perceived by end-users? Five APNs were provided with the scenarios and the list of tasks to evaluate the application. Their verbalizations were recorded through Morae usabil ity software. Data analysis was based on the data captured through Morae, transcriptions, notes, and the end-user survey. Results: End-users completed all the required tasks without encountering a severe usability problem, and agreed that the system was easy to use. clear, concise, and useful. Usability issues that were unrecognized by the developer or usability experts were identified by APNs. The usability problems were categorized according to positive characteristics, negative characteristics, and recommendations. The usability issues were discussed with the project team members, and solutions were suggested to improve the user interface of the PDA-based decision support system before the final implementation. Conclusions: This approach had an important impact on making the system easier to use and more useful from the perspective of design and content. The results of this evaluation provided iterative feedback regarding the design and implementation of the PDA-based decision support system for the management of obesity.

• 한국과학교육학회지
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• 제33권7호
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• pp.1418-1430
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• 2013

이 연구에서는 학생들의 발성사고와 반구조화된 면담을 통하여 주장하는 글쓰기 과정에서 나타나는 글쓰기 과정 요소 및 글쓰기 전략을 조사하였다. 연구대상은 중학교 2학년 학생 18명이었다. 학생들은 글쓰기 과제에 제시된 정보들을 바탕으로 제시된 주장에 대한 찬성이나 반대 입장을 결정하도록 하였다. 발성사고와 면담의 전사본을 분석하여 글쓰기 과정에서 나타난 글쓰기 과정 요소와 글쓰기 전략을 분류하였고, 학생들이 작성한 글의 수준도 평가하였다. 주장하는 글쓰기의 과정 요소에 대한 분석 결과, 목표 설정, 개요 조직, 내용 평가 등의 요소에서 문제 해결 글쓰기와 다른 특징이 나타났다. 또한 주장하는 글쓰기에서는 '정보 조정'이 새롭게 발견되었다. 글쓰기 전략은 의사결정 유형(반성적/직관적)과 글쓰기 과정에서 개요 조직의 유무에 따라 네 가지(반성적 의사결정 및 개요 조직, 반성적 의사결정 및 개요 비조직, 직관적 의사결정 및 개요 조직, 직관적 의사결정 및 개요 비조직) 유형으로 분류하였다. 반성적 의사결정 및 개요조직 전략을 사용한 학생들은 주장과 논거의 관련성, 반대 입장에 대한 논박, 글의 구조 등의 측면에서 평가한 글쓰기 점수가 가장 높았다.

• 대한공업교육학회지
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• 제31권2호
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• pp.1-40
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• 2006

본 연구는 급변하는 사회와 산업 현장의 요구에 부응할 수 있는 공업계 고등학교 전문교과 수업의 새로운 접근을 위하여 공업계 고등학교 전문교과의 문제중심학습에 의한 실기수업모형을 개발하여 일, 학습, 삶이 상호연관 되는 질 높은 실기 수업을 적용하는데 도움이 되고자 하였다. 본 연구에서는 공업계 고등학교에 적합한 문제중심학습에 의한 실기수업 모형을 개발하기 위해 첫째, 공업계 고등학교의 실기수업에 적합한 문제해결 과정에 관한 국내 외 관련 문헌을 분석 고찰하고 둘째, 문제중심학습에 관한 국내 외 관련 문헌을 분석 고찰하여 이를 근거로 공업계고등학교에 적용할 수 있는 문제중심학습에 의한 실기수업 모형을 구안하였다. 연구결과 첫째, 문제중심학습에 의한 실기수업은 학생들이 실생활의 비 구조화된 문제를 중심으로 이것을 해결하는 과정에서 학습이 이루어지도록 하는 수업 형태로 본 연구에서는 문제해결 과정, 즉 계획, 실행, 평가의 과정을 거쳐 학생이 문제를 해결해 가는 과정에서 학습이 이루어지도록 하는 학습자 중심의 수업 형태를 의미한다. 둘째, 문제중심학습에 의한 실기수업에서 교사는 문제의 설계, 문제해결을 촉진하는 질문과 언어적 개입이 요구되며, 힌트와 조력을 하는 코치 역할과 Think Aloud을 이용한 문제해결 과정에 대한 인지적 모델링 역할이 요구된다. 셋째, 공업계 고등학교에서 문제 중심 학습에 의한 실기수업은 학습동기 유발 및 자기 주도적 학습과 협동적 학습이 일어나도록 해야 한다.

• 컴퓨터교육학회논문지
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• 제17권5호
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• pp.25-34
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• 2014

본 연구의 목적은 박물관 교육 모바일 어플리케이션의 원활한 사용과 행동유도성을 위해 Norman(1998)이 제시한 물리적, 인지적 어포던스로 나눠 어포던스의 문제점을 개선하고자 하는데 있다. 이를 위해 박물관에 G과학관 교육 모바일 기기 애플리케이션을 선정하여 관찰 및 면담, 생각 소리내어 말하기 프로토콜을 통해 어포던스의 문제점을 분석하고 개선하였다. 본 연구는 박물관 교육 모바일 시스템을 사용하는 학습자의 입장에서 어포던스 문제점을 살펴보고 실질적인 개선을 통해 학습자가 인터페이스가 제공되는 정보를 지각하고 이해할 수 있도록 설계되어 학습자가 낯선 박물관 모바일 환경에서도 학습자가 바로 적절한 행동을 유도하게 될 것이다. 또한 학습자들이 박물관 콘텐츠를 직접 조작하고 상호작용하는 학습 체험을 경험하여 탐구적 활동을 촉발하고 의미 있는 학습과 연결될 수 있을 것이다.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제13권2호
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• pp.151-170
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• 2009

This study reports a research which was conducted on how frequently and where the students use the unit circle method while dealing with trigonometric functions in solving the trigonometry questions. Moreover, the reasons behind the choice of the methods, which could be the unit circle method, the ratio method, or the use of trigonometric identities, are also investigated to get an insight about their understanding. In this study, the relationship between the students' choices of methods in solving questions is examined in terms of instrumental or relational understanding. This is a multi-method research which involves a range of research strategies. The research techniques used in this study are test, verbal protocol (think aloud), and interview. The test has been applied to ten tenth grade students of a public school to get students' solution processes on the paper. Later on, verbal protocol has been performed with three students of these ten who were of the upper, middle and lower sets in terms of their performance in the test. The aim was to get much deeper data on the students' thinking and reasoning. Finally, interview questions have been asked both these three students and other three from the initial ten students to question the reasons behind their answers to the trigonometry questions. Findings in general suggest that students voluntarily choose to learn instrumentally whose reasons include teachers' and students' preference for the easier option and the anxiety resulting from the external exam pressure.

• 한국과학교육학회지
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• 제17권1호
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• pp.11-19
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• 1997

Students' protocols obtained from think-aloud interviews were analyzed in the aspects of the success at first two problem-solving stages (understanding and planning), the time to complete a problem, the time at each problem-solving stage, the number of transition, and the transition rate. These were compared in the aspects of the context of problem, the success in solving problem, students' logical reasoning ability, spatial ability, and learning approach. The results were as follows:1. Students tended to spend more time in everyday contexts than in scientific contexts, especially at the stages of understanding and reviewing. The transition rate during solving a problem in everyday contexts was greater than that in scientific contexts. 2. Unsuccessful students spent more time at the stage of understanding, but successful students spent more time at the stage of planning. 3. Students' logical reasoning ability, as measured with the Group Assessment of Logical Thinking, was significantly correlated with the success in solving problem. Concrete-operational students spent more time in completing a problem, especially understanding the problem. 4. Students' spatial ability, as measured with the Purdue Visualization of Rotations Test and the Find A Shape Puzzle, was significantly correlated with their abilities to understand a problem and to plan for its solution. 5. Students' learning approach, as measured with the Questionnaire on Approaches to Learning and Studying, was not significantly correlated with the success in solving problem. However, the students in deep approach had more transitions and greater transition rates than the students in surface approach.