• Smart Media Journal
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• v.3 no.3
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• pp.26-35
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• 2014

The statistical graphics is a design field focusing on the user perception aspects for the correct information delivery and the effective understanding, with the use of the quantitative data through the information analysis, extraction, visualization process. The statistical graphics with the big data composition factor is termed as the statistical big data graphics. In the statistical graphics the visual factors are used to reduce the errors in the perception part and to successfully deliver the information. However, in the statistical big data graphics the visual factors of the enormous data are causing the cognitive discouragements. The purpose of this study is to extract the cognitive discouragement factors from the big data statistical graphics, categorizing the types of the statistical big data graphics as 'network type', 'segment type', and 'mixed type', based on their compositional shapes, and explored the characteristics according to them. Especially, based on the visual main factors in the statistical big data graphics, We extracted the cognitive discouragement factors that appear in the high visualization as the four categories: 'multi-dimensional cases', 'various color', 'information overlap', and 'legibility of the writing'.

• Journal of The Korean Association For Science Education
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• v.22 no.4
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• pp.862-871
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• 2002

We investigated elementary students' conceptions of the simple electric circuit using a battery, a bulb and a wire, and made comparison between the cognitive conflict through peer discussion and the cognitive conflict through physical experience. Two hundred and sixty-four sixth grade students who already had learned about the electric circuit were participated. The questionnaire to investigate the student's conceptions about simple electric circuit consisted of 5 items drawing the wire connections between a battery and a bulb to light the bulb. The students in the discussion group paired randomly with student who had different conceptions, and then each pairs discussed about their ideas freely with each other. After discussion they conducted CCLT(Cognitive Conflict Level Test) which consisted of 4 factors; recognition, interest, anxiety, reappraisal. The physical experience group conducted a task in which they connected a battery and a bulb with a wire, then conducted CCLT. The sixth graders had various misconceptions. Most students were not aware of the scope of negative battery terminal and two electric terminals of a bulb. Many students emphasized the tip of a bulb and positive battery terminal. The score of CCLT in the discussion group was higher than in the physical experience group. This results showed that discussion with peers was more effective than physical experience to arouse cognitive conflict.

• Communications of Mathematical Education
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• v.33 no.3
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• pp.395-423
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• 2019

The purpose of the study is to analyze the levels of cognitive demands and components of the reasoning process presented in the mathematical sequence section of three high school mathematics textbooks in order to provide implications for the development of reasoning tasks in the future mathematics textbooks. The results of the study have revealed that most of the reasoning tasks presented in the mathematical sequence section of the three high school mathematics textbooks seemed to require low-level cognitive demands and that low-level cognitive demands reasoning tasks required only a component of one reasoning process. On the other hand, only a portion of the reasoning tasks appeared to require high-level of cognitive demands, and high-level cognitive demands reasoning tasks required various components of reasoning process. Considering the results of the study, it seems to suggest that we need more high-level cognitive demands reasoning tasks to develop high-level cognitive reasoning that would provide students with learning opportunities for various processes of reasoning, and that would provide a deeper understanding of the nature of reasoning.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2007.05a
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• pp.61-63
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• 2007

아이덴티티(identity)는 퍼스낼리티(personality)로서 자신을 총체적으로 통합시켜 경쟁시대에 차별 화를 위한 새로운 이미지 정착의 수단으로 중요시 되고 있다. 본 연구는 각 캐릭터들 간의 다양성과 시각적 통일성 요소들을 파악하여 동질성 인지를 통한 캐릭터 아이덴티티를 확립하는 기초정보 제공에 목적이 있다. 따라서 범주화, 전형성 인지 과정에 관련된 선행연구를 바탕으로 캐릭터 인지의 형태적 대표성을 나타낼 수 있는 전형적 요소들이 있다는 가설 하에 사례분석을 통한 조형적 요소의 특징을 분류하였다. 또한 캐릭터 그룹 간의 아이덴티티를 나타낼 수 있는 형태적 요소의 범위를 파악하였으며, 기초설문조사를 바탕으로 캐릭터의 형태 인지에 따른 빈도분석 결과 형태 인지의 우선 순위는 얼굴, 눈 코 입, 면, 아웃라인 순으로 분석 되었다. 향후 캐릭터의 형태적 요소에 기인한 실증분석을 통해 캐릭터 아이덴티티를 실현하고자 한다.

• Proceedings of the KAIS Fall Conference
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• 2012.05a
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• pp.141-144
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• 2012

본 연구는 일반학부모의 장애아에 대한 태도가 통합보육태도에 미치는 영향을 알아보는데 목적을 갖고, 2012년 3월 2일부터 10일까지 J지역 소재 통합보육시설에 다니고 있는 일반 자녀를 둔 학부모 150명을 대상으로 설문조사하였는데 그 결과를 요약하면 다음과 같다. 첫째, 장애아에 대한 태도가 통합보육 일반 태도에 미치는 영향을 검증한 결과 인지적, 감정적 요소가 일반 태도에 통계적으로 유의한 정(+)의 영향을 미치는 것으로 나타났다. 둘째, 장애아에 대한 태도가 통합보육 유아활동 및 교사관심에 미치는 영향을 검증한 결과 인지적, 행동적 요소가 유아활동 및 교사관심에 통계적으로 유의한 정(+)의 영향을 미치는 것으로 나타났다. 셋째, 장애아에 대한 태도가 통합보육 행동문제에 미치는 영향을 검증한 결과 인지적, 감정적, 행동적 요소가 행동문제에 통계적으로 유의한 정(+)의 영향을 미치는 것으로 나타났다. 이상의 연구결과를 종합해 보면 일반학부모의 장애아에 대한 태도에 따라 통합보육 태도에 차이가 있음을 알 수 있다. 이는 일반학부모의 장애아에 대한 인지적, 감정적 요소에서 차이를 보여 이들 요인의 인식 개선시 통합보육태도를 높이는 긍정적인 요소로 작용할 수 있음을 시사한 것으로 볼 수 있다. 이 같은 결과는 통합보육이 장애유아와 일반유아 모두가 서로의 다양성을 인정하며, 이질적인 상대의 존재를 받아들이고, 존중하며 함께 배우려는 학부모의 인식전환이 선행되어져야 할 것을 시사한 것으로 해석할 수 있다.

• Broadcasting and Media Magazine
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• v.21 no.1
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• pp.78-88
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• 2016

멀티미디어 시스템에 있어서 제공하는 영상 콘텐츠의 화질은 우선적으로 보장되어야 할 요소이다. 화질에 최적화된 시스템을 설계하고 평가하기 위해서는 화질의 측정 기술이 필수적인데, 기존의 신호 기반 화질 평가가 갖는 한계 때문에 최근에는 시청자가 실제로 인지하는 화질을 평가하는 기술의 중요성이 높아지고 있다. 특히 UHD 시대에는 단순 화질뿐만 아니라 실감성 등의 인지적 요소도 주목을 받고 있기 때문이다. 본 글에서는 인지 화질 측정에 관련된 기술 동향을 살펴보고, UHD의 인지 화질 측정 관련 최신 연구를 살펴본다.

• The Journal of Korean Association of Computer Education
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• v.11 no.2
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• pp.1-12
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• 2008

It is important to improve the creative problem- solving ability through subject matter education. Especially, Informatics education is important to improve the problem-solving ability by using computer as well as the general problem-solving ability. This paper identifies the creative problem- solving ability which is required in Informatics education. The cognitive components of the creative problem-solving ability are organized as the result of crossing the problem-solving ability and the creativity. This paper investigated the validity of the contents as judged by a panel of experts. The cognitive components of creativity are the elaboration, sensitivity, and reorganization in the step of 'Understanding and Analysis the Problem'. Also, The cognitive components of creativity are the fluency, flexibility, and originality in the step of the 'Exploring the Problem Solutions'. The cognitive components of creativity are elaboration in the step of the 'Design the Problem Solution' and 'Implementation'. Finally, the cognitive components of creativity are the flexibility and elaboration in the step of the 'Evaluation'.

• School Mathematics
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• v.9 no.3
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• pp.375-396
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• 2007

The purpose of this study is to analyze how a mathematics teacher and a high school student make the meaning in a graph and how aspects of the interpretation of a graph are interacted during the signification process, and to suggest considerations for teaching and learning of a graph. The findings of a case study have led to conclusions as follows: All of them have a difficulty in making the meaning in a graph and construct the meaning as a nested signification model. In the process which they make the meaning, they interrelate cognitive, contextual, and affective aspects and construct interpretants. In this process, a teacher focuses on cognitive aspect, based on a qualitative approach. But a student considers contextual aspect more, based on a quantitative approach. This study suggests three considerations for teaching and learning of a graph.

• 한국HCI학회:학술대회논문집
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• 2007.02b
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• pp.333-338
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• 2007

모바일 기기의 디자인은 제약적인 물리적 조건하에서 이루어지기 때문에, 사용자는 제품을 손으로 만지는 순간부터 제품 혹은 디자인의 물리적 사용성을 평가하게 된다. 근래 사용자들이 모바일를 장시간, 밀착해서 소지/사용하는 행태를 볼 때, 사용 초기에는 물리적 사용성 위주로 제품 사용성을 평가하고 이런 평가 결과는 사용 후반 까지 영향을 미친다. 이런 물리적 사용성에 관해서는 전 연구를 통해 제품 제품 개발 과정에서 모바일 기기의 물리적 사용성 문제 (PUI)가 발생하는 영역과 특성을 정의하였다. 또한, 물리적 사용성 문제가 개발 과정상에서 체크되고 개선 / 반영 하기 위한 하였다. 본 사례 연구에서는 QWERTY 키 패드 모바일 기기를 디자인 하기 위해 물리적 사용성 고려 요소를 평가 하고, 사용자의 인지적 사용성에도 영향을 미치는 물리적 요소를 평가하는 과정을 소개한다. 제품 디자인 전제 벤치마킹/ 컨셉 회의는 의례적으로 이루어 지지만, 사용성 관점에서 디자인시 고려할 요소를 평가하는 과정을 논의하고자 한다. 본 사례 연구 결과 본 연구를 통해 사용자가 느끼는 컨텐츠 만족도를 제외한 모바일 기기의 만족도는 다분히 물리적 사용성 부분에 존재하며 제품 디자인시 물리적 사용성 고려 요소를 조사하고 반영해야 한다는 필수성을 증명하고 있다.

• Education of Primary School Mathematics
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• v.17 no.2
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• pp.95-111
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• 2014

The purpose of this study is to determine the relationship between metacognition and math creative problem solving ability. Specific research questions set up according to the purpose of this study are as follows. First, what relation does metacognition has with creative math problem-solving ability of mathematically gifted elementary students? Second, how does each component of metacognition (i.e. metacognitive knowledge, metacognitive regulation, metacognitive experiences) influences the math creative problem solving ability of mathematically gifted elementary students? The present study was conducted with a total of 80 fifth grade mathematically gifted elementary students. For assessment tools, the study used the Math Creative Problem Solving Ability Test and the Metacognition Test. Analyses of collected data involved descriptive statistics, computation of Pearson's product moment correlation coefficient, and multiple regression analysis by using the SPSS Statistics 20. The findings from the study were as follows. First, a great deal of variability between individuals was found in math creative problem solving ability and metacognition even within the group of mathematically gifted elementary students. Second, significant correlation was found between math creative problem solving ability and metacognition. Third, according to multiple regression analysis of math creative problem solving ability by component of metacognition, it was found that metacognitive knowledge is the metacognitive component that relatively has the greatest effect on overall math creative problem-solving ability. Fourth, results indicated that metacognitive knowledge has the greatest effect on fluency and originality among subelements of math creative problem solving ability, while metacognitive regulation has the greatest effect on flexibility. It was found that metacognitive experiences relatively has little effect on math creative problem solving ability. This findings suggests the possibility of metacognitive approach in math gifted curricula and programs for cultivating mathematically gifted students' math creative problem-solving ability.