• Journal of the Korean Chemical Society
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• v.67 no.5
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• pp.362-377
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• 2023

The purpose of this study was to investigate the effect of semantic mapping as a science text reading strategy on high school students' inferential understanding. For this purpose, eight science text reading classes were conducted a reading strategy using semantic mapping for 46 students in two science-focused classes in the third grade of a high school. To investigate the effects of semantic mapping reading strategy on students' inferential comprehension, students' pre- and post-reading ability tests results were analyzed. In order to find out the change in inferential comprehension, the level of the inferential comprehension was analyzed using the analysis framework for developed in this study. For the classification of inferential comprehension, the levels of the inferential comprehension were converted into scores. The results of the analysis of changes in students' inferential comprehension showed that semantic mapping reading strategy classes influenced the changes in high school students' inference, especially bridge inference and elaborative inference among sub-elements of inferential comprehension.

• Journal of The Korean Association For Science Education
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• v.38 no.6
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• pp.839-851
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• 2018

The purpose of this study is to analyze the science reasoning differences of elementary school students' science writing. For this purpose, science writing activities and analysis frameworks were developed. Science writing data were collected and analyzed. Third to sixth grade elementary students were selected from a middle high level elementary school in terms of a national achievement test in Seoul. A total of 320 writing materials were analyzed. The results of the analysis were as follows. Science writings show science reasoning at 52 % for $3^{rd}$ grade, 68% for $4^{th}$ grade, 85% for $5^{th}$ grade, and 89% for $6^{th}$ grade. Three types of scientific reasoning such as inductive reasoning, deductive reasoning, and abductive reasoning appeared in science writing of the third to sixth graders. The abductive reasoning appeared very low in comparing with inductive and deductive reasoning. Level three appeared the most frequently in the science writing of the elementary students. The levels of inductive and deductive reasoning in science writing increased according to increasing grade and showed statistical differences between grades. But the levels of abductive reasoning did not show an increasing aspect according to increasing grade and also did not show statistical differences between grades. The levels of inductive reasoning and deductive reasoning of the 3rd grade was very low in comparing with the other grades.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.14 no.2
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• pp.41-49
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• 2008

임상추론은 환자를 평가하고 관리하는데 사용되는 임상가의 필수적인 생각 또는 동적인 인지과정이라고 할 수 있다. 임상추론은 환자의 문제를 인식하고 식별하며 더 나은 환자관리가 이루어지도록 환자의 상태에 대처하며 정보를 해석하고 분석하는 것으로서 이를 위해 임상가는 적절한 지식을 가지고 있어야 하며 임상추론 기술과 관련된 폭넓은 이해가 요구된다. 임상추론은 치료사, 환자, 그리고 환경간의 상호관계를 가진 복잡한 과정으로 임상추론과정에서 치료사와 환자간에는 충분한 협조가 이루어져야 한다. 임상추론에서의 해석적 모델로는 진단적 추론, 상호작용의 추론, 이야기적 추론, 협조적 추론, 예언적 추론, 윤리적 추론, 추론의 교육 등이 제시된다. 임상추론 과정에서 필수적인 주요 요소는 충분한 지식, 인지와 초인지 기술을 포함하며 이들 요소는 치료사와 환자간의 관계에서 발달되어야 한다. 이들 기술 중에 어떠한 실수라도 임상추론의 오류를 초래할 수 있다. 추론에서 오류의 원인으로는 암시된 정보의 잘못된 인지, 임상페턴에 대한 지식부족, 특정 상태에 대해 알려진 사실을 잘못 적용하는 경우를 들 수 있다. 오류는 임상추론 과정의 어떤 단계에서도 일어날 수 있으므로 효과적인 학습전략을 통하여 이들 오류를 예방할 수 있을 것이다.

• Journal of Intelligence and Information Systems
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• v.3 no.2
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• pp.23-32
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• 1997

본 논문에서는 정성적 공간 표현 방식과 물체의 운동에 대한 추론 방식에 제시되었다. 기존의 정성적 벡터 표현 방식은 각도 개념을 추가하여 확장되었으며, 이에 따라 방향의 계산을 위해 필요한 정성적 벡터 연산도 확장되었다. 또한 회전운동에 의한 각도의 변화를 분석하는 추론 방식도 기술되었다. 운동에 대한 정성적 추론의 기본 아이디어는 공간에서의 위치와 운동을 상대적인 개념으로 표현하는 것이다. 이와같이 제안된 이론은 장치의 분석에 사용되어 주어진 연동 장치의 거동을 정확히 예측 할 수 있었다.

• Journal of Elementary Mathematics Education in Korea
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• v.21 no.3
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• pp.461-483
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• 2017

The ability to think mathematically and to reason inductively are basics of logical reasoning and the most important skill which students need to acquire through their Math curriculum in elementary school. For these reasons, we need to conduct an analysis in their procedure in inductive reasoning and find difficulties thereof. Therefore, through this study, I found parts which covered inductive reasoning in their Math curriculum and analyzed the abilities and characteristics of students in solving a problem through inductive reasoning.

• Proceedings of the Korean Association for Survey Research Conference
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• 2000.11a
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• pp.41-62
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• 2000

현실적으로 통계추론 방법의 적용시, 그 정당성이 보장되는 기본가정이외에도 추가적인 가정이 불가피하여, 본래의 정당성이 퇴색되는 경우가 흔히 발생한다. 따라서 이런 경우에는 통계추론의 평가가 필수적일 것이나, 많은 경우에 분석적 평가를 하기에는 너무 복잡하여, 특정상황을 상정한 모의분석 평가가 주류를 이루고 있다. 본 고에서는 보다 일반적 상황에서의 통계추론의 평가를 위해 브트스트랩방법과 같이 관찰값에 의존한 모의방법(observation-based simulation)을 이용한 평가방법을 제안한다. 우선 설득력 있는 평가요소로서 구간추정시 포함확률(coverage probability)와 같은 빈도성질(frequency property)를 선택하였다. 빈도성질은 고전적 통계추론은 물론 베이지안 통계추론을 대상으로도 의미있는 평가기준으로 판단되는 바, 이를 평가요소로서 선택하고, 이의 추정을 위한 방법과, 그 추정결과의 해석과 나아가 이를 기준으로 한 통계추론 결과의 조정 방법까지 일련의 절차에 대한 방법론을 제시하였다.

• Journal of Elementary Mathematics Education in Korea
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• v.20 no.4
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• pp.601-625
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• 2016

In this study, I hoped to reveal the understanding of pre-service elementary teachers about proportional reasoning and the traits of proportional reasoning strategy used by pre-service elementary teachers. The results of this study are as follows. Pre-service elementary teachers should deal with various proportional reasoning tasks and make a conscious effort to analyze proportional reasoning task and investigate various proportional reasoning strategies through teacher education program. It is necessary that pre-service elementary teachers supplement the lacking tasks such as qualitative reasoning and distinction between proportional situation and non-proportional situation. Finally, It is suggested to preform the future research on teachers' errors and mis-conceptions of proportional reasoning.

• Journal of the Korean earth science society
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• v.29 no.7
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• pp.586-601
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• 2008

The purpose of this study was to identify the scientists' abductive reasoning in three stages of hypothetical-deductive inquiry process; generating hypothesis, designing, and interpreting data and to suggest new analytic coding frames on abductive reasoning in each of the stages. For this purpose, the interview protocols collected through in-depth interviews with eight scientists were analyzed by the early frame with sub-elements derived from the literature reviews. The need of a new frame of analysis beyond the previously established elements arose from the result of this analysis because the processes of abductive reasoning were found in all three stages. Based on scientists' interview data, this study then designed a new frame of analytic coding frames on the abductive reasoning in each of the stages. The content validity index from four experts was 0.90, and these frames showed a good fit to analyze the scientists' real process of abduction in three stages of hypothetical-deductive inquiry process.

• 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 Korea Inteligent Information System Society Conference
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• 2005.11a
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• pp.497-499
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• 2005

정성적 추론은 자연 세계에 대한 정성적, 직관적인 지식을 밝혀내어 코드화하는 목표를 갖고 연구되어왔다. 정성적 추론은 전자, 기계 등의 도메인에서 성공적으로 사용되어 그 실효성을 입증할 수 있었으나, 대부분의 추론은 시뮬레이션에 집중되어 왔다. 본 연구에서는 주어진 상황에서 변화가 발생했을 때, 이 변화가 어떻게 영향을 미치며 파급되는지를 예측할 수 있는 정성적 비교분석 기법을 소개하고지 한다. 주어진 상황에 대한 인과모델이 정성적 분야 모델로부터 형성되고 여기에 비교분석 추론 기법을 적용하여 변화의 연쇄적인 인과 관계를 추적하게 된다. 이러한 기법은 변화의 예측 뿐 아니라, 이런 변화를 이끌어낸 인과 관계를 설명하는 기능을 제공하게 되어, 디자인, 진단, 지능형 교육 시스템, 환경 영향평가 등에 이용되리라 기대된다.