• Journal of The Korean Association of Information Education
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• v.7 no.3
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• pp.285-298
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• 2003

According to the operation guide book concerning the educations of Information Communication, Art for Primary and Middle school issued by Ministry of Education, Korea, 2001, it revealed many things as to an Spread Sheet's paradigm, that is, as to an useful program in Science, Practical course, Moral, Physical education and Society. However it can be said that the existing Spread Sheet is more or less unconvenience to use for pupils. Because most of pupils generally feel constrained to the functional formula and also when a complicated menu of Spread Sheet would be made the most of it. Moreover, from a certain point of view, it is somewhat too difficult to use the program as they feel intuitionally taking a look at it. This very thesis in order to support a part of probability and statistics for pupils were observed sincerely.

• Communications of Mathematical Education
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• v.24 no.1
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• pp.177-193
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• 2010

The purpose of this study is to explore normal distribution in probability distributions of the area of statistics in high school mathematics. To do this these contents such as approximation of normal distribution from binomial distribution, investigation of normal distribution curve and the area under its curve through the method of Monte Carlo, linear transformations of normal distribution curve, and various types of normal distribution curves are explored with CAS calculator. It will not be ablt to be attained for the objectives suggested the area of probability distribution in a paper-and-pencil classroom environment from the perspectives of tools of CAS calculator such as trivialization, experimentation, visualization, and concentration. Thus, this study is to explore various properties of normal distribution curve with CAS calculator and derive from pedagogical implications of teaching and learning normal distribution curve.

• Journal of the Korean School Mathematics Society
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• v.24 no.2
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• pp.191-216
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• 2021

This study analyzes how statistical literacy is implemented along with the statistical problem-solving process as described in the Statistical Estimation Unit of the textbook by the 2015 revised mathematics curriculum. The analytical framework was developed from the literature, and consists of 'context', 'variability', 'mathematical and statistical knowledge', 'using of technological instruments', 'critical attitude', and 'communication'. From the perspective of the statistical problem-solving process, the analysis revealed that many tasks equivalent to 'Analyzing Data' but lacked tasks related to 'Interpreting Results' and 'Formulating Questions'. As a result of analyzing the reflection of each element of statistical literacy, 'mathematical and statistical knowledge' was the most common task, but 'critical attitude' and 'using of technological instruments' were rarely dealt with. Based on the results of this textbook analysis, it was intended to provide implications for improving the curriculum and the development of textbooks for the growth of statistical literacy.

• Journal of Educational Research in Mathematics
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• v.13 no.3
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• pp.403-428
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• 2003

This study intends to compare the mathematics contents included in the mathematics curriculum of Korea, California in USA, England, and Japan. The result of this comparison is that there are big differences on ranges, depths, and grades between mathematics contents in four countries' mathematics curriculum. In Korea, more contents are dealt in earlier grade and to higher level than other countries. And, these features are revealed more apparently in the area of algebra, analysis, and geometry than probability and statistics.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.10a
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• pp.848-850
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• 2014

Mobile Ad hoc Networks(MANET) is consist of node that has mobility, MANET build cluster formation for using energy efficient. In existing LEACH algorithm elect cluster head node in coverage area by distribution function. However, when the cluster head node, that elected by distribution function, is divided coverage area unevenly, the network can't consumption energy efficiency. To solve this problem, we proposed CSWC(Coverage Scheduling Weight-value Control) algorithm. When the coverage area is divided nonchalance, proposed algorithm increased number of hops, that determines coverage area, for balance coverage area. As the result proposed algorithm is set balance coverage area, the network consumption energy efficiency.

• The Journal of the Korea institute of electronic communication sciences
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• v.14 no.4
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• pp.781-786
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• 2019

We should give a realistic value on the large amounts of relevant data obtained from these studies to achieve effective objectives of the disease study which is dealing with various vital phenomenon today. In this paper, the proposed MKSV algorithm is estimated by optimal probability distribution, and the input pattern is determined. After classifying it into data mining, it is possible to obtain efficient computational quantity and recognition rate. MKSV algorithm is useful for studying the relationship between disease and gene in the present society by simulating the probabilistic flow of gene data and showing fast and effective performance improvement to classify data through the data mining process of big data.

• Journal of the Korean School Mathematics Society
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• v.17 no.4
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• pp.629-656
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• 2014

This study developed teaching and learning materials for an integrated education program of probability and genetics in the light of connections between mathematics and biological science. It also analysed characteristics of high school students' mathematical activities which appeared while the students took part in lessons where the developed materials were contributed in order to teach them. To achieve the aim, this study firstly specified five details for the development of the materials based on the results of previous research and extracted contents of probability and genetics which had the possibility of being taught in the integrated education program by examining the text books. After embodying the teaching materials according to the five details and the extracted contents, the researchers implemented 10 lessons by using the materials. This study elaborated some implications for a succeeding integrated education of mathematics and biological science in term of anlaysis results of features from the students' mathematical understanding and attitudes emerging in the lessons.

• Journal of the Korean Data and Information Science Society
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• v.23 no.3
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• pp.525-534
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• 2012

The purpose of this study is to increase the employment rate of graduates in the fields of the S/W and H/W. In order to seek employment in various major fields of the S/W and H/W, firstly, this paper proposes the educational case study that increases the concern about employment and develops learner's ability in the unfavorable major fields. Secondly, this paper presents the future driving improvement for the employment rate on the basis of the department's special characteristics and the actual circumstances in the fields of the S/W and H/W. This paper conducts the surveys of each 40 seniors majoring in S/W and H/W respectively in order to measure the understanding of probability/statistics which has been used as tools in the unfavorable major fields. With the purpose of increasement on the employment rate, the paper is designed to have 3 steps, that is, a preliminary questionnaire for employment preference, major courses connecting probability/statistics and a post-questionnaire for employment preference, which eventually investigates the changes of the perception on employment. This paper is verified by the multiple regression analysis to approve the effect on improving learner's academic achievement.

• Journal of the Korean School Mathematics Society
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• v.20 no.4
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• pp.387-404
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• 2017

In this paper, in the last 4 years(2014~2017 school year), we classified the probability and statistical items based on the evaluation scope of the mathematics subject content knowledge which were presented by the Korea Institute for Curriculum and Evaluation, and the classified items were analyzed. As a result, First, in order to induce normalization of the probability and statistical curriculum, four assessment field should be evenly distributed. Second, integrated thinking and comprehensive analytical thinking assessment is required. Third, item an epilogue should be used to measure mathematical thinking and logical competence. Fourth, the ratio of the number of items in probability and statistics to the number of that was 7.7%~10.0%, and the ratio according to the item weighting was 5.0%~7.5%. Fifth, it maintains the policy of stabilizing a good the level of difficulty of the items. Finally, probability and statistical assessment should focus on measuring problem solving ability from an inductive point of view.

• 한국정보교육학회:학술대회논문집
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• 2004.08a
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• pp.650-659
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• 2004

21세기의 세계화, 정보화 시대를 주도할 자율적이고 창의적인 한국인을 육성하기 위하여 제7차 교육과정은 자율과 창의에 바탕을 둔 학생 중심의 교육과정을 표방하고 자기 주도적 학습 능력의 신장에 역점을 두고있다. 이에 따라 자기 주도적 학습 능력신장을 위한 수학과 교수 학습 자료들이 제작되어 보급 활용되고 있으나 구체적 조작기 아동의 특성에 맞는 초등학교 저학년 수학교과의 자기 주도적 학습 능력 신장을 위한 효과적인 프로그램은 부족한 실정이다. 이에 본 연구는 선행 연구 사례들을 분식하여 나타난 단점들을 수정, 보완하고, 초등학교 '확률과 통계'영역 중 3학년 나 단계의 '자료 정리하기' 단원을 재구성하였다. 그리고 이를 웹기반 학습 프로그램으로 개발하여 현장에 적용해 봄으로써 그 효과를 검증하고자 한다.