• 한국수학교육학회지시리즈D:수학교육연구
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• 제27권2호
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• pp.157-173
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• 2024

Researchers continue to emphasize the centrality of proof in the context of school mathematics and the importance of proof to student learning of mathematics is well articulated in nationwide curricula. However, researchers reported that students' performance in proving tasks is not promising and students are not likely to see the need to prove a proposition even if they learned mathematical proof previously. Research attributes this issue to students' tendencies to accept an empirical argument as proof for a mathematical proposition, thus not being able to recognize the limitation of an empirical argument as proof for a mathematical proposition. In Korea, there is little research that investigated high school students' views about the need for proof in mathematics and their understanding of the limitation of an empirical argument as proof for a mathematical generalization. Sixty-two 11^th graders were invited to participate in an online survey and the responses were recorded in writing and on either a four- or five-point Likert scale. The students were asked to express their agreement with the need of proof in school mathematics and to evaluate a set of mathematical arguments as to whether the given arguments were proofs. Results indicate that a slight majority of students were able to identify a proof amongst the given arguments with the vast majority of students acknowledging the need for proof in mathematics.

• 한국영어학회지:영어학
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• 제1권1호
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• pp.119-143
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• 2001

The main goal of this paper is to examine the current English education practices in Korea in the broad context of research and academia. Furthermore, it attempts to uncover why English education has not been well established as a field of science in English-related departments and consequently what has been neglected and what issues should be dealt with to increase understanding and to create a more interactive relationship between the university and society. First, the author deals with the influence of ‘folk science’ views in the field of English education by touching on some widely held perceptions and issues. Second, by dealing with the alienation of English education and examining the phenomenon of seeing English education as a secondary field of science in English related departments, an attempt was made to reveal underlying epistemological dualism rooted in Asian cultures. Third, the paper deals with a critical issue related to English education: Exposure and Time. By reviewing and reinterpreting some of basic and fundamental literature with respect to language learning, exposure, and time, the author raises a new issue in English education and proposes new interpretation and an alternative more relativistic viewpoint; he also investigates what should be done to improve English education on the basis of research and science in order to deal with the needs and problems of society.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• 제28권4호
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• pp.192-196
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• 2017

Social (pragmatic) communication disorder (SCD) is a new diagnosis included under communication disorders in the neurodevelopmental disorders section of Diagnostic and Statistical Manual of Mental Disorders-5. SCD is defined as a primary deficit in the social use of nonverbal and verbal communication. SCD has very much in common with pragmatic language impairment, which is characterized by difficulties in understanding and using language in context and following the social rules of language, despite relative strengths in word knowledge and grammar. SCD and Autism Spectrum Disorder (ASD) are similar in that they both involve deficits in social communication skills, however individuals with SCD do not demonstrate restricted interests, repetitive behaviors, insistence on sameness, or sensory abnormalities. It is essential to rule out a diagnosis of ASD by verifying the lack of these additional symptoms, current or past. The criteria for SCD are qualitatively different from those of ASD and are not equivalent to those of mild ASD. It is clinically important that SCD should be differentiated from high-functioning ASD (such as Asperger syndrome) and nonverbal learning disabilities. The ultimate goals are the refinement of the conceptualization, development and validation of assessment tools and interventions, and obtaining a comprehensive understanding of the shared and unique etiologic factors for SCD in relation to those of other neurodevelopmental disorders.

• 한국수학교육학회지시리즈A:수학교육
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• 제44권3호
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• pp.435-456
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• 2005

This research aims to analyse implementation effects of the Real mathematics Education(RME) in the high school probability and statistics For this aim, two research questions are estabilished as fellows. (1) Is there any improvement of mathematical achievement in the class by RME's lecture than in the class by the mathematics text's lecture ? (2) Is there any improvement of mathematisation level in the class by RME's lecture than in the class by the mathematics text's lecture ? Before answering the above research questions, RME.`s lecture notes and ordinary lecture notes are developed based on the learning principles of the RME and mathematics textbook respectively. Two classes are randomly chosen from a high school located at midium size city and assigned as the experimental group and the control group respectively. The 20 hours of the RME's lecture notes is administerd to the experimental group and the 20 hours of the odinary lecture notes is administerd to the control group. It is shown that the class by RME's lecture is more effective in both of the mathematical achievement and the mathematisation activity than the class by the ordinary lecture. Hence, it is urged from the result of this research that RME's context will be developed and the RME's lecture will be implemented in the other field of high school mathematics.

• 영어어문교육
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• 제10권3호
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• pp.41-66
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• 2004

Under the textbook-driven approach to English education in the Korean selling, the importance of the English textbook can not be overemphasized as the main source of learning materials. Recently, with the development of computer-based language corpora, the recognition of the importance of collocations and the availability of computerized databases of words have caused a resurgence and facilitation in the instruction of collocation. The primary purpose of the present study is to identify the characteristics of lexical collocation and the extent of its use in high school 10th-grade textbooks. From all the analyses, it is revealed that the language materials reflect various constructed collocation in the case of adjective+noun and noun+noun collocations in a natural context. However, verb+noun and adverb+verb collocations are not fully reflected. This is true for delexicalized verbs, and verb and adjective intensifiers. Also the language materials do not provide sufficient support for the lexical syllabus, even though all textbooks may be somewhat adequate in terms of vocabulary size. Finally, based on the analyses of the texts, the suggestions for English collocation instruction are made in the lexical approach.

• The Journal of Asian Finance, Economics and Business
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• 제8권2호
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• pp.195-200
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• 2021

In recent years, Vietnam's economic growth rate has been attributed to the growth of many well-managed industries within Southeast Asia. Among them is the civil construction industry. Construction projects typically take a long time to complete and require a huge budget. Many socio-economic variables and factors affect total construction project costs due to market fluctuations. In recent years, crucial socioeconomic development indicators of construction reached a fairly high growth rate. Also, most infrastructure and construction projects have a high degree of complexity and uncertainty. This makes it challenging to predict the accurate project price. These challenges raise the need to recognize significant factors that influence the construction price index of civil buildings in Vietnam, both micro and macro. Therefore, this paper presents critical factors that affect the construction price index using the fuzzy extent analysis process in an uncertain environment. This proposed quantitative model is expected to reflect the uncertainty in the process of evaluating and ranking the influencing factors of the construction price index in Vietnam. The research results would also allow project stakeholders to be more informed of the factors affecting the construction price index in the context of Vietnam's civil construction industry. They also enable construction contractors to estimate project costs and bid rates better, enhancing their project and risk management performance.

• 대한수학교육학회지:학교수학
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• 제17권3호
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• pp.447-467
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• 2015

본 연구의 목적은 도(degree)와 라디안을 호의 측도로 해석하는 것이 라디안과 각의 측정에 대한 개념적 이해에 어떠한 영향을 미치는지 살펴보는 것이다. 이에 호의 길이를 이용한 각의 측도에 대한 내용지식을 26명의 예비중등교사를 대상으로 조사하였으며, 그 결과를 반영하여 두 명의 중학생들을 대상으로 실험을 진행하였다. 예비교사들과 두 중학생의 반응을 분석한 결과, 도(degree)의 개념을 호의 측도로 해석한 경험이 라디안의 이해에 긍정적인 영향을 미쳤으며, 호의 측도로 각의 측도를 파악하는 과정이 '선형 측정'에 대한 개념적 이해를 가능하게 하였다. 또한 각에 관한 다양한 문제에서 원의 맥락과 호의 등분 전략이 효과적인 문제해결전략으로 작용하였으며, 각과 호의 측도 사이의 관계를 탐구할 수 있는 직접적인 조작활동을 제공하는 것이 각의 측정 개념에 대한 이해에 도움을 줄 수 있다는 것을 확인하였다.

• 디지털융복합연구
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• 제14권2호
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• pp.57-63
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• 2016

교수전문성 개발에 있어서 수업성찰이 중요함에도 불구하고 이에 대한 본격적인 연구가 없었다. 본 연구의 목적은 수업성찰의 이론적 토대가 되는 성찰의 개념, 절차 및 내용을 고찰하여 대학교수의 수업성찰 실천에 관한 시사점을 도출하는 것이다. 성찰의 개념은 $Sch{\ddot{o}}n$이 제시한 '행동 중 성찰'이며, 성찰의 절차와 내용은 Korthagen의 Core Reflection 모형을 통해 설명될 수 있다. Core Reflection 모형은 교수의 수행행동에 영향을 미치는 내면적 요인과 외현적 요인을 통합하도록 지원하며 교사 개인의 강점을 발전시키는 모형이다. 대학교수의 수업성찰 실천에 관한 시사점으로 첫째, 교수 개인은 수업 상황에서 지속적으로 자신의 행동을 관찰하고 성찰하면서 수업성찰 저널을 작성해야 한다. 둘째, 교수학습개발센타에서는 수업성찰의 내용과 절차에 관한 오리엔테이션 교육과 컨설팅을 제공해야 한다. 마지막으로 교수 개인의 성찰이 효과적이기 위해서 동료교수와의 수업나눔이 필요하다.

• 비교교육연구
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• 제24권3호
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• pp.101-125
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• 2014

본 연구는 성인 문해력 조사연구의 국제 동향을 분석하여 우리나라 성인 문해력 조사 도구 개발 및 문해교육 정책의 시사점을 얻기 위한 것이다. 이를 위하여, 국제 표준화 조사도구와 별도로 독자적인 성인 문해력 조사 도구를 개발하여 활용하고 있는 영국, 프랑스, 독일의 성인 문해력 조사 방법을 비교 분석 하였다. 분석 결과, 세 국가는 성인 문해교육 정책의 연계성 속에서 생활문해 또는 기능문해의 관점에서 문해의 의미를 정의 내리고 있었으며, 읽기와 쓰기를 중심으로 수리력과 정보 활용 능력도 측정하고 있었다. 문해력 수준의 판정은 각 국가별 상황을 고려하여 다양하게 이루어지고 있었으며 조사의 정책 연계성과 효율성을 강조하는 SQC모델을 채택하고 있었다. 이런 분석 결과를 통해 우리나라 성인 문해력 조사를 실시함에 있어 성인 문해교육 정책의 실행과 조사 주체의 일원화, 일상생활을 반영한 조사도구의 개발, 수준별 문해력 측정, 조사도구의 모듈화, 조사의 경제성과 활용성의 확보 등의 시사점을 얻을 수 있었다.

• 제어로봇시스템학회논문지
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• 제20권5호
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• pp.513-519
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• 2014

Videoconferencing technology is increasingly used in classrooms to introduce children to people from other countries and cultures in order to provide a wider learning experience. However, with traditional screen-based video conferencing technology, research has shown that it is easy for students to miss non-verbal cues that play a key role in developing human relationships. To investigate how children interact differently when their interactions are mediated through screen-based video communication versus robot-mediated communication, we conducted a study with elementary students in Korea, comparing the use of both technologies to introduce classroom students with peer-aged individuals in America. Our findings show that the children displayed more positive emotions during certain tasks and exhibited more interest and intimacy to remote participants in the context of robot-mediated communication than with video-mediated communication.