• Communications of Mathematical Education
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• v.11
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• pp.415-435
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• 2001

본 연구의 첫 번째 목적은 수학 교사가 가지고 있는 수학의 교수-학습에 대한 개념을 알아보고자 한 것이다. 두 번째 목적은 수학 교사의 수학 단원에 대한 선호도와 그 이유를 알아보고자 한 것이다. 세 번째 목적은 확률 개념과 통계 개념에 대한 교육적 지식을 알아보고자 한 것이다. 본 연구에서 나타난 결과에 의하면 수학 교사의 수학의 본질에 대한 개념은 문제해결적 관점보다 플라톤적 관점이 더 우세한 것으로 나타났다. 그리고 가장 좋아하는 단원으로 도형 부분을 가장 많이 꼽았으며 가장 싫어하는 단원으로 확률과 통계를 가장 많이 꼽았다. 또한 가르치기 가장 쉬운 단원으로 방정식과 부등식 부분을 가장 많이 꼽았으며 가르치기 가장 어려운 단원으로 도형 부분을 가장 많이 꼽은 것으로 나타났다.

• Korea journal of population studies
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• v.34 no.1
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• pp.179-198
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• 2011

The purpose of this study was to examine relationships between chronic diseases, age, and education in Korea. Logistic regression techniques were used to analyze data from the Korean Longitudinal Study of Ageing (KLoSA), which is a nationally representative sample of Koreans aged 45 years and older. The findings show that probability of having chronic diseases increased with age up to about 74; however, it was reduced for respondents aged 74 years or older. Associations between age and chronic diseases were also differential by education. Less educated Koreans tended to have chronic diseases earlier in their lifetime; however, they were likely to have chronic diseases later in life less than more educated counterparts. The findings suggest that individuals with fewer years of education are at an increased risk of developing chronic diseases earlier in their lifetimes, thereby, leading to a higher rate of mortality at younger ages.

• School Mathematics
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• v.15 no.3
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• pp.603-617
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• 2013

The major purpose of this article is to examine what kind of gap exists between mathematically gifted students' probability knowledge and the reality actually applying that knowledge and then analyze the cause of the gap. To attain the goal, 23 elementary mathematically gifted students at the highest level from G region were provided with problem situations internalizing a probability and expectation, and the problems are in series in which conditions change one by one. The study task is in a gaming situation where there can be the most reasonable answer mathematically, but the choice may differ by how much they consider a certain condition. To collect data, the students' individual worksheets are collected, and all the class procedures are recorded with a camcorder, and the researcher writes a class observation report. The biggest reason why the students do not make a decision solely based on their own mathematical knowledge is because of 'impracticality', one of the properties of probability, that in reality, all things are not realized according to the mathematical calculation and are impossible to be anticipated and also their own psychological disposition to 'avoid loss' about their entry fee paid. In order to provide desirable probability education, we should not be limited to having learners master probability knowledge included in the textbook by solving the problems based on algorithmic knowledge but provide them with plenty of experience to apply probabilistic inference with which they should make their own choice in diverse situations having context.

• The Mathematical Education
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• v.61 no.1
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• pp.29-45
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• 2022

This study tried to analyze the problems by critically examining how the chance is taught in relation to the concept of chance and randomness in the Korean elementary school mathematics curriculum. To this end, the concepts of chance and randomness were first examined, and problems were presented in based on this by the literature analysis on mathematics curriculum material and textbooks for elementary school in Korea. As a result, there was a lack of experience in reasoning based on data, and randomness instruction was not performed properly. In addition, as the teaching of the sample space was omitted, contradictory materials were being used. Moreover, it was pointed out that the teaching of chance is focused on a specific grade level. For the improvement of the teaching of chance, a teaching of the probability experiment and the sample space were mainly suggested, and it was also suggested that the contents of the data area be adjusted for the composition focused on a specific grade.

• 한국사회복지학회:학술대회논문집
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• 2003.10a
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• pp.473-497
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• 2003

본 연구는 한국노동패널 1998-2001 자료를 이용하여 성장기에 경험한 가족구조와 저소득, 빈곤 등의 가족배경이 청소년의 교육성취 미치는 영향을 분석하였다. 가족구조와 가족소득, 빈곤의 영향을 각각 분석한 결과 각 변수는 청소년의 학력연수와 대학입학확률, 진학고교유형과 통계적으로 유의미한 관계를 보였다. 19세의 학력연수와 대학진학확률의 경우 이혼 별거가족의 청소년과 한부모가족을 장기적으로 경험한 청소년, 빈곤가족의 청소년은 특히 낮은 수준의 성취도를 보였다. 가족구조가 19세의 교육성취에 미치는 영향은 소득수준이나 빈곤을 통제한 후에도 지속되는 것으로 나타났다. 소득과 빈곤의 영향력 또한 가족구조가 모형에 포함된 후에도 큰 차이가 없었다. 반면에 16세의 진학고교유형에 대해서는 가족구조와 가족소득을 같이 모형에 포함하는 경우 가족구조의 영향은 일관되지 않고 빈곤의 영향 또한 사라진다. 가족구조와 빈곤의 상대적 영향력을 두 변수가 모두 통계적으로 유의한 영향을 미친 대학진학모형에서 비교한 결과 가족구조의 영향력이 큰 것으로 나타났다. 이러한 본 연구의 발견은 한부모가족과 빈곤가족에 대한 사회적 지원 대책이 청소년 교육성취 수준을 향상하는 데에 크게 기여할 수 있음을 시사한다.

• Communications of Mathematical Education
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• v.27 no.3
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• pp.205-220
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• 2013

In this research, in order to investigate the principles for the development of mathematics textbook for decision-making based on storytelling, we conceptualized the educational meaning of decision-making and specified the principles and the methods for the textbook based on decision-making. We illustrated the principles and the methods by the cases from the model textbook for the conditional probability that we have developed. We discussed the implication for the future development and implementation of mathematics textbook for decision-making based on storytelling.

• Journal of the Korean Data and Information Science Society
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• v.27 no.4
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• pp.887-898
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• 2016

The purpose of this study is to improve the learning ability of probability/statistics for H/W majors. Firstly, we developed a teaching method coupling probability/statistics with programming and multimedia signal processing courses that are opened in the H/W major curriculum. By use of its teaching-learning, we tried to verify the effectiveness on the improvement of learner's academic achievement and then analyze its educational efficiency through the regression analysis. Secondly, by analyzing the surveys and the statistical results of the education cases, we proposed a management plan on efficient teaching-learning in order to cultivate the learning ability of probability/statistics at a future time. Lastly, we concluded that probability/statistics is a required course of learners so as to contribute for the advanced technical development and the enhanced competitiveness in the field of the H/W.

• School Mathematics
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• v.9 no.3
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• pp.397-408
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• 2007

This research intends to look into how mathematically gifted 6th graders (age12) who have not learned conditional probability before solve conditional probability problems. In this research, 9 conditional probability problems were given to 3 gifted students, and their problem solving approaches were analysed through the observation of their problem solving processes and interviews. The approaches the gifted students made in solving conditional probability problems were categorized, and characteristics revealed in their approaches were analysed. As a result of this research, the gifted students' problem solving approaches were classified into three categories and it was confirmed that their approaches depend on the context included in the problem.

• Communications of Mathematical Education
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• v.15
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• pp.59-64
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• 2003

이 연구는 사범대학 수학교육과의 교육과정 중 통계분야에 대한 사항을 논의하는 기본 자료로서 통계학 전공 교수 현황과 교육과정을 살펴보았다. 현재 수학교육과 소속의 전임교수 164명중에서 통계학 전공교수는 7명으로서 전체의 4.3%를 차지하고 있다. 또, 확률 및 통계영역에 대한 교육과정의 편성은 6.1%를 차지하고 있다. 따라서, 통계학에 대한 교수 및 교육과정 편성이 적어도 10%는 되도록 노력하여야 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.05a
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• pp.1297-1300
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• 2007

본 논문에서는 HMIPv6 에 적용이 가능한 핸드오프 확률 기반의 페이징 기법과 페이징 요구 메시지 전송을 위한 멀티캐스트 기법을 제안한다. 핸드오프 확률 기반의 페이징 기법은 모바일 호스트들의 이동 패턴에 기반하여 비정형화 된 페이징 영역을 설정하고 이를 기반으로 거리와 핸드오프확률을 이용하여 멀티캐스트 트리를 구성한다.