• 한국초등수학교육학회지
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• 제17권1호
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• pp.67-86
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• 2013

본 연구는 수학영재학생들의 뇌선호유형에 따라 그들이 문제를 해결하는 과정에서 Schoenfeld의 문제해결 행동요인 4가지가 어떻게 활용되고 있는지를 분석하고 이를 통해 수학영재 수업 시 고려해야 될 뇌기능 분화와 관련된 교육적 시사점을 찾아보고자 하는 것이다. 연구 대상자는 BPI검사를 통해 좌, 우뇌별 선호도가 높은 6학년 영재학급 학생 4명이다. 분석 결과 좌뇌선호형 학생들의 경우 객관적이고 논리적인 판단을 좋아하는 좌뇌의 특성이, 우뇌선호형 학생들의 경우 주관적이고 직관적인 판단을 좋아하는 우뇌의 특성이 많이 관찰되었다. 또한 문제해결과정에 나타나는 Schoenfeld의 문제해결 행동요인도 뇌선호유형의 특성에 맞게 서로 다른 것들이 주로 선택되는 것을 확인하였다. 따라서 좌뇌선호형 학생들과 우뇌선호형 학생들이 각각 선택한 문제해결 행동요인을 분석하고 그들에게 상호 보완될 수 있는 문제해결 행동요인을 안내 및 제안해 줌으로써 뇌선호유형별 학생들의 문제해결지도에 활용할 수 있을 것이다.

• 한국초등과학교육학회지:초등과학교육
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• 제26권4호
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• pp.385-394
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• 2007

In order to investigate elementary school students' readiness to write on scientific subject, we analyzed the participants' draft in elementary student section [National Student Science Writing Contest] which is sponsored by a daily press. As a first step, we designed an assessment framework to analyze the students' writing. It is composed of three domains: scientific thinking, logical validity, creativeness. Each domain has three sub-domains. By using the framework, seven raters scored the students' inquiry reports. The findings reveal that the students needed the training for scientific writing. Especially they had great difficulty in the sub-domain of 'suggestion of rational alternative solution' in scientific thinking domain, the sub-domains of 'clearness' and 'coherence' in logical validity domain, and in the sub-domains of 'creative problem solving' and 'creative presentation' in creative domain.

• 대한심미치과학회지
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• 제8권1호
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• pp.84-89
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• 1999

These days, Dental Technic has been contributed to make more delicating Dental Prosthesis Restoration for patient and dentist. Diagnostic wax-up and making Temporary Crown are emphasized as an important part of Dental Technic. Choosing suitable Material and working with various new Equipments like Microscope improve accuracy. Repeated practice by setting up an organized system gives better result. Also, Esthetic Prosthesis requires patient's appearance and personality as well as patient' age, sex, and shade so on. Moreover, the problem which occurs by the patient's oral condition ha to be discussed before taking final impression. At a time like this, Scientific-mind and Logical thought Ability should be considered the important issue for more progressive Dental Technic.

• 경영과학
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• 제17권2호
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• pp.87-95
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• 2000

This paper presents two analytical approaches to determine the vehicle fleet size for container shuttle service. The shuttle service can be defined as the repetitive travel between the designated places during working period. In the first approach, the transportation model is adopted in order to determine the number of vehicles required. Its advantages and disadvantages in practical application are also discussed. In the second approach, a logical network which is oriented on job is transformed from a physical network which is focused on demand site. Nodes on the logical network represent jobs which include loaded travel, loading and unloading and arcs represent empty travel for the next jobs which include loaded travel, loading and unloading and arcs represent empty travel for the next job. Then a mathematical formulation is constructed similar to the multiple traveling salesman problem (TSP). A solution procedure is carried out based on the well-known insertion heuristic with the real world data.

• Journal of the Optical Society of Korea
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• 제12권2호
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• pp.69-78
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• 2008

EPONs are a low cost, high speed solution to the bottleneck problem of broadband access networks. To support point-to-point and shared LAN emulation, EPONs use the multi-point control protocol (MPCP), which uses logical link identification (LLID) forframe tagging and filtering between the OLT and ONUs. In this paper, ONU-based multicast or multiple shared LAN emulation for IPTV services is proposed using logical group identification (LGID). Using ONUbased VLAN services, EPONs can support separate and secure connections between providers and subscribers in a simple manner. Also, differentiated IPTV channel packages can be delivered through EPONs by implementing ONU-based VLAN and IGMP snooping mechanisms.

• 논리연구
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• 제17권1호
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• pp.33-70
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• 2014

그것이 지녀온 막강한 영향력에도 불구하고 우리는 타르스키류 논리적 귀결의 정의가 역사적/철학적으로 어떤 배경과 동기를 지닌 것인지를 알지 못하고 있다. 논리적 귀결 개념이 논리학과 논리철학의 핵심 개념이라는 점을 감안할 때, 이는 충격적이다. 그리고 이런 불만스러운 상황이 초래된 데에는 여러 가지 요인이 복합적으로 작용한 것으로 보인다. 분석철학과 현대 논리학의 역사에 관하여 최근 이루어진 성과는 고무적이다. 그러나 관련된 여러 논쟁들의 추이를 볼 때 불만을 해소하기까지는 상당한 세월이 요구되리라 예상된다. 이런 우울한 정황 속에서 극히 최근 더글라스 패터슨에 의해 수행된 타르스키의 언어철학 및 논리학 연구는 획기적인 업적으로 판명될 만한 잠재력을 지닌 것으로 여겨진다. [Patterson (2012)] 본 논문은 패터슨의 연구에서 미심쩍은 부분을 비판적으로 검토함으로써 이 문제 영역에서의 연구의 현주소와 후속 연구의 방향을 가늠해 보고자 한다.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제6권2호
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• pp.75-84
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• 2002

After entering an elementary school, in fact, a number of children regard mathematics as one of very difficult subjects because of its abstractiveness. This is caused by the fact that their basic thinking power is not yet formed or they can not understand the special quality of mathematics. So this article emphasizes the need to build up the higher logical thought and a basic mathematical concept at the lower grade elementary school stage in which the loaming activity on mathematics begins in earnest, that is, at the stage before having an experience on the calculating activity using numbers. But at present the lower grade elementary school students in our country do not understand the special quality of mathematics composed of a various symbolic system and lay stress upon mathematics learning attached to the calculative activity. In order to make the right mathematical concept of the lower grade elementary school, the basic knowledge and ability as follows is sure to be formed. 1) the foundational logical manipulation activity and knowledge 2) the using ability of the sign and symbolic system At the stage on which mathematics learning activity begins, it is a very important task to make the right concept of the abstractive math and nurse the capability for finding mathematical relations covered under the sign system through the continuos loaming activity on . Through the basic logical manipulation activity and the game activity of sign for lower grade elementary school students mentioned in this article, they can not only foster the higher level logical thinking power and the foundational calculative ability but also bring up the interest on the activity of establishing a new problem solving strategy.

• 한국보육학회지
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• 제19권1호
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• pp.87-99
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• 2019

본 연구는 어머니의 양육 신념이 훈육방식에 미치는 영향을 알아보는 데 목적이 있다. 이를 위해 S시와 K도에 거주하는 어머니 219명을 대상으로 양육신념과 훈육방식을 설문지 조사하였다. 양육신념은 Okagaki와 Sternberg(1993)가 개발한 부모 양육신념 설문지를 사용했고, 훈육방식은 Calzada와 Eyberg(2002)의 부모 훈육방식 설문지를 사용하였다. 수집된 자료는 SPSS 23.0 프로그램을 사용하여 기술통계 분석, 상관 분석, 중다회귀 분석을 실행하였다. 연구결과를 요약하면 다음과 같다. 첫째, 어머니는 양육신념 중 문제해결 능력을 가장 중요하게 생각하고 있었고, 훈육방식은 논리적 설명을 가장 많이 사용하는 것으로 나타났다. 둘째, 양육신념 중 문제해결 능력과 창의적 능력은 훈육방식 중 논리적 설명과 정적 상관관계가 있는 것으로 나타났다. 셋째, 양육신념 중 문제해결 능력과 창의적 능력은 훈육방식 중 논리적 설명에 정적인 영향을 미쳤으며 방임과 강압적 체벌에는 부적인 영향을 미쳤다. 이는 유아의 어머니가 문제해결 능력과 창의적 능력 양육신념을 중요하게 생각할수록 훈육방식으로 논리적 설명을 많이 사용한다는 것을 의미한다. 본 연구의 결과는 유아 어머니의 바람직한 훈육방식의 토대가 되는 문제해결 능력과 창의적 능력 양육 신념에 관한 부모 교육이 필요함을 시사하고 있다.

• 한국과학교육학회지
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• 제22권5호
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• pp.1030-1043
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• 2002

The development of cognitive psychology provides us a theoretical base from which we can obtain information about human problem solving. One purpose of this study was to investigate the effects of cognitive psychological factors on the problem solving of the two kinds of tasks (content free, content specific). And the other purpose was to find out the existence of critical situation in problem solving process. Even the items of tasks with the same logical structure and content knowledge could have different sizes of mental demand. The results were as follows. The mental demand of the problem, and the problem solver's mental capacity, might be the main factors in problem solving. Critical situation of both a group and an individual existed in the tasks that need content free knowledge (FIT 752 task). But the critical situation of a group was completely different from that of the individual in the tasks that need content specific knowledge (electric circuit task). According to the analysis of achievement for each individual in the task that need content specific knowledge, the critical situation of an individual existed in problem solving, but the critical situation of a group was not existed by were summed up the individual results.

• East Asian mathematical journal
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• 제26권4호
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• pp.553-579
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• 2010

Geometric education emphasize reasoning ability and spatial sense through development of logical thinking and intuitions in space. Researches about space understanding go along with investigations of space perception ability which is composed of space relationship, space visualization, space direction etc. Especially space visualization is one of the factors which try conclusion with geometric problem solving. But studies about space visualization are limited to middle school geometric education, studies in elementary level haven't been done until now. Namely, discussions about elementary students' space visualization process and ability in plane or space figures is deficient in relation to geometric problem solving. This paper examines these aspects, especially in relation to plane and space problem solving in elementary levels. Firstly we propose the analysis frame to investigate a visualization process for plane problem solving and a visualization ability for space problem solving. Nextly we select 13 elementary students, and observe closely how a visualization process is progress and how a visualization ability is played role in geometric problem solving. Together with these analyses, we propose concrete examples of visualization ability which make a road to geometric problem solving. Through these analysis, this paper aims at deriving various discussions about visualization in geometric problem solving of the elementary mathematics.