• Communications of Mathematical Education
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• v.9
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• pp.31-40
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• 1999

요즈음 수학 수업에서 협동 학습을 활용하여 문제 해결을 하는 경우가 많이 늘었다. 학생들이 소집단에서 함께 활동하면 더 나은 문제 해결자가 된다는 것을 알기 때문이다. 그러나 학생들에게 협동적인 상황에서 문제 해결을 하게 하면서 그 평가는 개인 평가나 전통적인 평가에 그치는 경우가 많다. 소집단 협동 학습은 소집단의 구성원이 협동을 할 때 그 효과가 큰 것이며, 소집단 협동 학습에서의 평가는 소집단에 있는 학생들이 수행한 것을 참되게(Authentic) 평가하여야 문제 해결에 대한 올바른 정보를 얻을 수 있고 각 학생들로 하여금 협동 학습에 적극적으로 참여하여 문제를 해결하게 할 수 있다. 만일 협동적인 문제 해결을 하였는데 개인 평가를 실시한다면 학생들은 집단에서 협동할 필요성을 적게 느끼게 되어, 학생들은 협동 학습에 적극적으로 참여하지 않으려 할 것이다. 1990년대 수학교육에 많은 영향을 끼치고 있는 NCTM의 Curriculum and Evaluation Standard for School Mathematics에서도 수학 지도 방법과 평가 방법이 일치하여야 한다고 강조하고 있다. 본고에서는 이와 같은 필요성에 의거하여 수학과 소집단 협동 학습의 유형을 알아보고, 협동적 문제 해결의 평가 방법을 알아보고자 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.04b
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• pp.1017-1020
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• 2002

학교교육에서 가장 필요한 요소인 상담을 온라인 상에서 가능하게 한 본 시스템은 웹상에서 사용 가능한 상담시스템으로 홈페이지를 통해 간단히 사용할 수 있으며, 1:1상담, 음성상담, 화상상담 등의 기본적인 상담 외에 인터넷 감시 기능을 통해 학생들의 불건전 사이트 접속을 막을 수 있는 특징이 있다. 또한 학생, 교사, 학부모간의 원활한 의사소통을 통해 학생에게는 보람있는 학교생활을, 교사와 학부모에게는 학생에 대한 올바른 이해를, 교사에게는 학생지도의 자신감과 사명감을 심어 줄 수 있는 특징이 있다.

• Journal of Intelligence and Information Systems
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• v.11 no.3
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• pp.57-67
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• 2005

Data mining techniques enable us to generate useful information for decision support from the data sources which are generated and accumulated in the process of routine organizational management activities. College administration system is a typical example that produces a warehouse of student records as each and every student enters a college and undertakes the curricular and extracurricular activities. So far, these data have been utilized to a very limited student service purposes, such as issuance of transcripts, graduation evaluation, GPA calculation, etc. In this paper, we utilized Holland career search test results, TOEIC score, course work list and GPA score as the input for data mining, and we were able to generate knowledge and rules with regard to the college road map advisory service. Factor analysis and AHP(Analytic Hierarchy Process) were the primary techniques deployed in the data mining process. Since these data mining techniques are very powerful in processing and discovering useful knowledge and information from large scale student databases, we can expect a highly sophisticated student advisory knowledge and services which may not be obtained from the human student advice experts.

• Journal of Elementary Mathematics Education in Korea
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• v.11 no.1
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• pp.1-21
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• 2007

The purpose of this study was to propose instructional methods using base-ten blocks in teaching the multiplication of decimal for 5th grade students by analyzing the process of their conceptual comprehension of multiplication of decimal. The students in this study were found to understand various meanings of operations (e.g., repeated addition, bundling, and area) by modeling them with base-ten blocks. They were able to identify the algorithm through the use of base-ten blocks and to understand the principle of calculations by connecting the manipulative activities to each stage of algorithm. The students were also able to determine whether the results of multiplication of decimal might be reasonable using base-ten blocks. This study suggests that appropriate use of base-ten blocks promotes the conceptual understanding of the multiplication of decimal.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2005.05a
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• pp.266-273
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• 2005

Data mining techniques enable us to generate useful information for decision support from the data sources which are generated and accumulated in the process of routine organizational management activities. College administration system is a typical example that produces a warehouse of student records as each and every student enters a college and undertakes the curricular and extracurricular activities. So far, these data have been utilized to a very limited student service purposes, such as issuance of transcripts, graduation evaluation, GPA calculation, etc. In this paper, we utilize Holland career search test results, TOEIC score, course work list, and GPA score as the input for data mining and generation the student advisory information. Factor analysis, AHP(Analytic Hierarchy Process), artificial neural net, and CART(Classification And Regression Tree) techniques are deployed in the data mining process. Since these data mining techniques are very powerful in processing and discovering useful knowledge and information from large scale student databases, we can expect a highly sophisticated student advisory knowledge and services which may not be obtained with the human student advice experts.

• Journal of Educational Research in Mathematics
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• v.27 no.3
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• pp.431-449
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• 2017

Acute triangles and obtuse triangles are defined according to the classification of triangles by angles. The definitions of acute triangles and obtuse triangles are difficult for students because they are related to different logical elements. The purpose of this study is to seek desirable methods for teaching the classification of triangles by angles related to logic. To do this, based on the theoretical consideration and the longitudinal analysis of the elementary mathematics textbooks, some implications are found for teaching. And then the lesson was planned and applied to $4^{th}$ graders. After the lesson, we reviewed and analyzed their worksheets and test results for examining the effects by teaching methods. Based on the result, we discussed and made some didactical suggestions for teaching the classification of triangles by angles.

• Journal of Educational Research in Mathematics
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• v.26 no.4
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• pp.769-789
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• 2016

Pattern activities are useful to develop functional thinking of young students, but there has been lack of research on how to teach patterns. This study explored teaching methods of geometric patterns for developing functional thinking of elementary school students, and then analyzed the lessons in which such methods were implemented. For this, three classrooms of fourth grades in elementary schools were selected and three teachers taught geometric patterns on the basis of the same lesson plan. The lessons emphasized noticing the commonality of a given pattern, expanding the noti ce for the commonality, and representing the commonality. The results of this study showed that experience of analyzing the structure of a geometric pattern had a significant impact on how the fourth graders reasoned about the generalized rules of the given pattern and represented them in various methods. This paper closes with several implications to teach geometric patterns in a way to foster functional thinking.

• Journal of the Korean School Mathematics Society
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• v.15 no.3
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• pp.429-451
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• 2012

This paper examined eight novice elementary teachers' knowledge in terms of the types and sources of students' errors and teaching strategies on plane figures through a questionnaire and teachers' discussion. The teachers tended to predict students' diverse error types, but they attributed the sources of such errors mainly to their characteristics. The analysis of teachers' responses of teaching strategies revealed that they recognized the importance of the teacher's clear explanation and students' own problem-solving, while they were somewhat negative in presenting diverse examples and classifying, drawing, or constructing figures. Building on these results, this paper provides the implications for novice teachers' professional development programs.

• Journal of the Korean School Mathematics Society
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• v.7 no.1
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• pp.83-102
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• 2004

The purpose of this study was to investigate addition strategies of the 1st year elementary school students compared to the strategies recommended by the 7th national curriculum. We used interviewed children's worksheets to analyze the children's strategies. The results of the study showed that the formal strategies the textbook recommended and the children's strategies were so different. Teachers need to articulately comment two strategies when they teach mathematics in the classrooms.

• 대학교육
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• s.132
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• pp.23-29
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• 2004

대학이 외국인 학생 유치에 대한 의지를 갖고 해외 유학박람회 참가 등 적극적인 홍보를 통하여 대학의 인지도를 높이는 것이다. 동시에 외국인 학생을 위한 기숙사 등 거주 여건을 확보하여 수학 환경을 개선하는 노력이 있어야 한다.