• The Mathematical Education
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• v.61 no.2
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• pp.305-322
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• 2022

Angle has a variety of aspects, such as figure, measurement, and rotation, but is mainly introduced from a figure perspective and a quantitative perspective of the angle is also partially experienced in the elementary mathematics textbooks. The purpose of this study was to examine how the angle concept introduction and development pattern in elementary school mathematics textbooks are linked or changed in middle school mathematics textbooks, and based on this, was to get the direction of writing math textbooks and implications for guidance. To this end, 57 math textbooks for the first grade of middle school were collected from the first to the 2015 revised curriculum. As a result of the study, it was found that middle school textbooks had a greater dynamic aspect of each than elementary school textbooks, and the proportion of quantitative attributes of angle was higher in addition to qualitative and relational attributes. In other words, the concept of angle in middle school textbooks is presented in a more multifaceted and complex form than in elementary school textbooks. Finally, matters that require consensus within elementary, secondary, and secondary schools were also proposed, such as the use of visual expression or symbol, such as the use of arrows and dots, and the use of mathematical terms such as vertex of angle and side of angle.

• The Mathematical Education
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• v.22 no.1
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• pp.5-10
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• 1983

• Communications of Mathematical Education
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• v.13 no.2
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• pp.515-525
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• 2002

중학교 기하영역 중 피타고라스의 정리를 논증적인 증명 대신에 역동적인 방법으로 이해할 수 있도록 GSP(Geometer's Skechpad)를 활용하여 구현했으며, 멀티미디어 환경에 익숙한 중학생들에게 시 ${\cdot}$ 공간을 초월하여 웹 상에서 개별학습, 반복학습을 할 수 있도록 JAVA 언어를 사용하여 웹으로 변환시켰다.

• Communications of Mathematical Education
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• v.18 no.1 s.18
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• pp.183-190
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• 2004

학습부진아에 대한 정의는 여러 가지가 있지만, 일반적으로는 선수 학습 요소의 결손이나 환경요인 및 그 영향을 받은 개인의 성격이나 태도, 학습 습관 등의 요인으로 인해 수락할 수 있는 최저 학업성취 수준에 도달하지 못한 학습자를 지칭하는 용어로 쓰이고 있다. 본 연구에서는 학습부진아의 수학 기피성향 심리 검사지를 이용하여, 중학교 수학 학습부진아의 경우11개의 기피요인 중 어느 요인에서 두드러진 기피 현상을 나타내는지 그 특징에 대하여 알아보았다.

• Communications of Mathematical Education
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• v.11
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• pp.403-414
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• 2001

공간 지각력의 개발 ${\cdot}$ 육성은 수학교육의 중요한 목표들 중의 하나이지만, 중등학교 수학 교과서를 분석해 보면, 공간 도형에 대한 조작적 활동의 경험은 매우 빈약하다. 특히, 중학교에서는 1학년에서 공간도형의 계량적 측면에 중심을 두고 취급하고 있지만, 이를 통해 수학교육에서 추구하는 교육목표를 달성하기는 어렵다. 본 연구에서는 중학교 학생들이 공간 도형에 대해 다각적인 측면에서 분석적이고 조작적 활동을 경험하며, 이를 통해 공간 도형에 대한 상상력, 그리고 공간 도형에서의 추론 활동 경험을 제공할 수 있는 학습 자료를 개발하여 제시할 것이다.

• Journal of the Korean School Mathematics Society
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• v.14 no.3
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• pp.325-337
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• 2011

There have been several studies regarding strict and formal proof in the field of geometry in middle school curriculum, and the level of proof has been gradually lowered along with the changes in the curriculum. In the 2011 Revised Middle School Math Curriculum, there have been efforts to eliminate the term 'proof' and instead to replace it with the new one, 'justification'. Therefore, this study intends to present specific and practical examples of justification by analyzing the current math textbook especially in the field of geometry. As a result, it identified that strict and practical proof has been sharply increased in the second year of middle school. It also witnessed the possibility of justification from the various examples presented in the first, second, and the third year of the middle school math textbook.

• Communications of Mathematical Education
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• v.18 no.3 s.20
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• pp.171-197
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• 2004

1999년 교육개발원에서는 초 ${\cdot}$ 중학교 영재 교육과정 시안 개발을 위한 기초연구와 수학과 영재 교육과정 시안에 관한 보고서를 발간하였는데 이 보고서에 초 ${\cdot}$ 중학교 수학과 영재 교육과정 시안이 제시되어 있다. 이 영재 교육과정 시안으로써 그 내용에 상응하는 수학 교수 ·학습 자료 개발이 절실히 요구되고 있다. 한국교육개발원에서는 영재 교수 ${\cdot}$ 학습 자료개발 및 영재교사 연수가 본격적으로 확대, 추진되고 있는 실정이며 또한 2002년${\sim}$2003년 2년간 한국교육개발원에서는 영재학생을 위한 교수 ${\cdot}$ 학습 자료를 개발하여 왔다. 이런 취지를 바탕으로 지금 우리에게 영재 교육의 시급한 문제는 초 ${\cdot}$ 중등에 필요한 다양한 영재 교육프로그램을 마련하는데 있다. 본 연구에서는 한국교육개발원에서 마련한 교재개발 지침에 따라 2005학년도 교수 학습 자료를 중학교중심으로 영재 교육 프로그램을 구현해 보고자 한다.

• School Mathematics
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• v.16 no.1
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• pp.83-110
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• 2014

This study analyzed the mathematics textbooks of middle grades in the first Korean curriculum, based on the modern trends of mathematics education curriculum, comparing with present Korean curriculum's other textbooks and the American textbook, MiC. The mathematics textbooks in the first Korean curriculum are based on various situations in our real life and introduce mathematical concepts throughout a set of mathematics problems. The textbooks present mathematical concepts with connected knowledge and include mathematical activities which make students use mathematical table, graph and formula at the same time. And students are actively required to discuss together during the mathematics problem solving process. As the results of this modern review on Korean 1st curriculum and middle grades mathematics textbooks, it would provide preliminary data and meaningful implications for the next curriculum and concomitant instructional materials.

• School Mathematics
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• v.14 no.2
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• pp.213-232
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• 2012

The purpose of this study was to examine and analyze the cognitive demand of the mathematical tasks suggested in the middle school textbooks. In particular, it aimed to reveal the overall picture of the level of cognitive demand of the mathematical tasks on function in the textbooks. We adopted the framework for mathematical task analysis suggested by Stein & Smith (1998) and analyzed the mathematical tasks accordingly. The findings from the analysis showed that 95 percent of the mathematical tasks were at low level and the rest at high level in terms of cognitive demand. Most of the mathematical tasks in the textbooks were algorithmic and focused on producing correct answers by using procedures. In particular, the high level tasks were presented at the end of each chapter or unit for wrap up rather than as key resources.

• Journal of Educational Research in Mathematics
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• v.21 no.2
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• pp.165-180
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• 2011

Mathematical symbols concisely represent mathematical contents related to terms by describing their mathematical meanings implicitly. All symbols in elementary school mathematics textbooks are stated as to be read so that elementary school students could understand their mathematical meanings. The same is somewhat true as in middle school mathematics textbooks, however it is often the case that some symbols are difficult to be read and understood because their statements are unclear or different. In this study, we analyze problems and suggest implications on teaching and learning mathematics based on the statements and understanding of reading symbols in middle school mathematics textbooks.