• Communications of Mathematical Education
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• v.8
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• pp.65-76
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• 1999

관찰법은 학습과정에서 학생들이 알고 있는 것이 무엇이며, 할 수 없는 것은 무엇인지, 또 과제 수행의 다른 자극에 대해 어떠한 반응을 보이는지 파악할 수 있는 가장 보편적인 방법 중의 하나이다. 결국 학습 문제의 해결과정에서 일어나는 모든 학습활동을 기록함으로써, 각각의 학생들에 대한 성장을 파악하고 기록하여 이를 근거로 진보에 대한 적절하고 유용한 피드백을 제공하여 학생들의 학습활동을 활발하게 조장하고, 학생들의 진보를 관리할 수 있다. 그러나 관찰 결과를 모든 학생들을 대상으로 서술식으로 누가 기록하기에는 시공간적 제약으로 일선 교실 현장에서 적용하기란 어렵다. 따라서 그에 대한 대안적인 방법으로 관찰을 하면서 수행능력을 평가할 수 있는 체크리스트에 대해 알아보고, 실제 적용방안을 구안해보고자 한다.

• Communications of Mathematical Education
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• v.21 no.3
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• pp.431-450
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• 2007

A polygon is one of the main subjects of the geometry curriculum that is handled widely from the second-grade elementary school to middle school. In this research, we analyze second-grade middle school students' conceptions of the polygon that are revealed in the process of seeking the definition and the area of it given in a lattice worksheet.

• East Asian mathematical journal
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• v.27 no.2
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• pp.141-161
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• 2011

This research is a laboratory study for the improvement of differential equation class, and the aim of this study is to propose the possibilities of applicable writing activities for differential equation courses in university. We analyzed how the writing activities can affect the improvement of abilities of the students' affective domain and cognitive domain. Although the results from the two areas did not show a big numerical improvements it proved that the writing activities have positive effects, especially for the group of lower level students. The students felt interested and became more confident with differential equation studies. Their understanding of the study has been increased further by acquiring new learning methods, including writing activities. Therefore, we conclude that teaching and learning method designed systematically to adopt writing activities improve the students' learning attitudes and achievements.

• 한국정보교육학회:학술대회논문집
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• 2007.01a
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• pp.209-216
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• 2007

고도의 지식정보사회 속에서 논리적 사고력과 창의력, 문제해결력을 길러주는 프로그래밍 교육의 필요성은 더욱 강조되고 있다. 이에 본 연구에서는 초등학생들에게 적합한 교육용 프로그래밍 언어인 JavaMAL을 활용하여, 프로그래밍의 함수개념 형성을 위한 학습모형을 구안 적용하고 일반화 가능성을 탐색하고자 하였다. 먼저 기초적인 프로그래밍 요소 중 함수개념과 관련된 학습요소를 추출하여 차시별 지도계획을 수립하였다. 또한, 프로그래밍의 함수가 수학적 함수의 모방이라는 것에 착안하여 수학의 '규칙성과 함수'지도 단계를 LOGO의 문제해결력 수업모형인 안내된 발견식 교수법(guided discovery teaching method)에 강화한 후, 인터넷을 활용한 문제해결 수업모형을 구안하였다. 기본명령어와 변수개념을 이미 익힌 계발활동 부서 6학년 아동들을 지도 대상으로 한 달간 웹 기반 JavaMAL 환경에서 학습할 수 있도록 하였으며, 게시판 활동 및 활동지를 통해 함수개념 형성 여부를 측정하였다.

• Journal of Elementary Mathematics Education in Korea
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• v.15 no.1
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• pp.57-75
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• 2011

This research aimed to explore the effects of collaborative writing activities in a mathematical context, specifically pertaining to areas such as numbers and operation, geometrical figure, and measurement in Mathematics: Level 5-b, on their mathematical achievement gain and disposition among Grade 5 students. To do this, out of a total of 62 students selected from two Grade 5 classes of J Elementary School in Dalseo-gu, Daegu City, who were found to be homogenic from the tests of math performance and dispositions, an experimental group(n=31) was designed and compared to a control group (n=31). Over a six week period from October to November in 2009, the experimental group was given collaborative writing lessons in math classes while the control group was given teacher-oriented regular lessons. The results were as follows. First, there was more or less considerable, though not significant, difference in overall mathematical achievement in the students experiencing collaborative writing activities when compared with the students in the control group. However, in terms of numbers and operation, a sub-category of mathematics, there was significant difference between the two groups. Second, the students experiencing collaborative writing activities were more positively affected in all sub-categories of mathematical disposition: confidence, flexibility, determination, curiosity, reflection, and value, than those in the control group. In summing up, the exposure of collaborative writing activities to mathematics learning was found to help students not only to have a concrete and proper grasp of the relevant problem solving process, which was observed from their mathematical achievement gain especially in the sphere of numbers and operation, but also to have their mathematical disposition set towards more positive direction, which was seen in all sub-categories of mathematical disposition measurement.

• Communications of Mathematical Education
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• v.14
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• pp.405-425
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• 2001

수학적으로 생각하고 배우는 과정에서 의사소통의 역할은 지나치게 간과되었다(Greenes, & Schulman, 1996). NCTM에서 수학적 의사소통을 강조하고 있으나, 교실 수업 여건상 충분한 의사소통 경험을 가지기 어렵다. 그리고, 정보화 시대를 맞아, 교육에서도 ICT활용 교육이 일정 수준이상으로 의무화되었다. 또한, 인터넷을 활용한 웹기반교육이 확산됨에 따라, 효과적인 수학적 의사소통 방법이 요구된다. 따라서, ICT활용 수업 활동의 한 유형으로 웹토론을 고찰하고, 실시간 채팅 중심의 웹토론이 학생들의 수학 학습 과정에 관련된 태도에 영향을 주는지를 살펴보아야 한다. 그 결과, 즉각적인 상호작용이 이루어지는 실시간 웹토론이 학생들의 인터넷을 활용한 수학에 대한 태도 영역 중 학습동기 요인에 가장 효과적이었다. 또한, 실시간 토론을 경험한 학생들의 만족도는 매우 긍정적임을 실험을 통하여 확인할 수 있었다.

• Communications of Mathematical Education
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• v.23 no.2
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• pp.313-325
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• 2009

The purpose of this paper is to design a cyber mathematics mentoring system which is helpful for interactive mathematics mentoring among mentors and learners. We review theories about various technological tools that are related to students' interest, participation and motivation in the course of on-line and off-line activities, and we also research the effectiveness of such tools. Also we consider educational implications of the cyber mathematics mentoring system for pre-service teachers, in-service teachers, learners and mentors.

• Journal of Elementary Mathematics Education in Korea
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• v.14 no.1
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• pp.123-134
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• 2010

Recently, mathematics education have been emphasized on developing students' mathematical thinking and problem solving abilities. Accordance with this emphasis, dramatical changes are needed in learning mathematics not merely let alone students solve real-made mathematics problems. The project learning to explore a counterweight activity will have an effects on positive mathematical attitude(to pose problem, to have curiosity) and mathematical thinking(power 10-digit representation, 2-digit number, two representation of 3-digit number, connect exponential number and log situation) which could develop understanding problems and critical thinking.

• Journal of Elementary Mathematics Education in Korea
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• v.5 no.1
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• pp.99-120
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• 2001

The purpose of this thesis is to find the guiding direction of mathematical communication in lower grade students of elementary school and to present a new direction about the effect of using concrete material in communication. It is expected that mathematical communication increases when concrete material is used for the students of the lower grades, who are in concrete operational period. Therefore, this study ai s to investigate what characteristics there are in mathematical communication of second grade students and what effect concrete materials have on mathematical communication and learning. The analysis of the teaching record shows that the second grade students use alternative terms in the process of communication since they are not familiar with mathematical symbols or terms, which is a characteristic of communication in a mathematics class in which concrete material is used. In the process of teaming the students apply their living experiences to their teaming. Since a small number of students lead class, the interaction between students is also led by them. The direction of communication in a small group is not centered around solution of a problem, and most students show a more interest in finding answers than in the process of learning. The effect that concrete material has on communication plays an important role in promoting students' speaking activity; it allows students to identify and correct their errors more easily. It also makes students' activities more predictable, and it increases a small group activities through the medium of concrete material. However, it was also noticed that students' listening activities are not appropriately developed since they do not pay attention to a teacher who uses concrete material. The effects that concrete material has on mathematics class can be summarized as follows. Concrete material promotes students' participation in class by triggering their interest of learning of mathematics and helps them to understand the course of learning. It also helps the teaming and formation of concepts for children of low academic performance. And it makes a phased learning possible according to students' ability to use concrete material and to solve a problem. Based upon the results above mentioned, the use of concrete material is absolutely needed in mathematics classes of lower grade elementary school students since it increases communication and gives much influence on mathematics learning. Therefore, teachers need to develop teaching or learning method which can help increase communication, considering the characteristics of students' communication.

• Journal of Elementary Mathematics Education in Korea
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• v.5 no.1
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• pp.121-142
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• 2001

The purpose of this study is to investigate elementary teacher's beliefs and attitudes about mathematics and how those reflect their teaching practices. For this goal : (1) Designing questionnaire to measure elementary teachers' beliefs and attitudes about mathematics (2) Inquiring into character of elementary teacher's beliefs and attitudes about mathematics after analyzing questionnaire (3) Analyzing two teachers' mathematics teaching practices to understand how teacher's beliefs and attitudes affect mathematics teaching practices.