• 한국수학교육학회지시리즈D:수학교육연구
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• 제25권3호
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• pp.189-199
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• 2022

A debate about the importance of geometry courses has existed for years. The questions have revolved around its significance to students and teachers alike. This study looks to determine whether a teacher taking a college-level geometry course has a positive relationship with their students' algebraic reasoning skills. Using data from the High School Longitudinal Study 2009 (HSLS09: Ingels et al., 2011, 2014), it was determined that 9th-grade teachers who took a college-level geometry course had a significant positive association with their students' 11th-grade algebraic reasoning scores. This study suggests that teachers who take geometry during college have a lasting effect on their students. The implications of these findings and how they may affect higher education are discussed.

• 한국수학교육학회지시리즈A:수학교육
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• 제44권2호
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• pp.215-228
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• 2005

The purpose of this study is to development the scoring framework for teacher knowledge of fractions. This framework is qualified in the content-validity by professional educators' evaluation and in the reliability by correlation coefficient. 2 math educators judged that this framework is composed of appropriate scoring category, scoring criterion, and scoring level. After 2 teachers scored the tasks, correlation coefficient was calculated between evaluators. The coefficient is evaluated high in that it is more than 0.80.

• 한국수학교육학회지시리즈A:수학교육
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• 제43권2호
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• pp.199-210
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• 2004

This study investigates 55 preservice secondary mathematics teachers' situational understanding of functional relationship. Functional thinking is fundamental and useful because it develops students' quantitative thinking about the world and analytical thinking about complex situations through examination of the relations between interdependent factors. Functional thinking is indispensable for understanding natural phenomena, for investigation by science, and for the technological inventions in engineering and navigation. Therefore, it goes without saying that teachers should be able to represent and communicate about various functional situations in the course of teaching and learning functional relationships to develop students' functional thinking. The result of this study illustrates that many preservice teachers were not able to appropriately represent and communicate about various functional situations. Additionally, it shows that most preservice teachers have limited understanding of the value of teaching function.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제25권1호
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• pp.101-123
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• 2022

최근 교육의 패러다임이 교수자 중심에서 학습자 중심으로 변화함에 따라 학습자의 능동적인 지식의 구성이 중요시되고 있으며, 이에 따라 수학적 모델링을 활용한 수업이 주목을 받고 있다. 하지만 기존의 연구는 교사 또는 중·고등학교 학생들에게 초점이 맞춰져 있어 연구의 내용과 결과들을 예비교사들에게 그대로 적용하는 것은 어려움이 따른다. 따라서 본 연구에서는 초등학교 예비교사들을 대상으로 학창시절 수학적 모델링에 대한 경험을 살펴보고 수학적 모델링에 대한 긍정적인 경험이 그들의 인식에 어떠한 변화를 주는지 살펴보았다. 연구결과 초등학교 예비교사들은 학창시절 수학적 모델링에 대한 경험이 매우 적었으며, 수학적 모델링에 대한 이론적인 수업을 진행했을 경우보다 실제로 수학적 모델링에 대한 경험을 같이 했을 때 보다 더 긍정적인 인식으로 변화하는 것으로 나타났다. 본 연구의 결과를 바탕으로 예비교사 양성과정에서의 시사점을 제언하였다.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제12권4호
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• pp.259-270
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• 2008

The change of the developed countries to highly technological societies continuously requires that they nurture and use the full potential of mathematically and scientifically talented people. As this is a process that should start early in order to be efficient, the main responsibility of identifying and addressing the specific needs of these people is assigned to public school systems and, in particular, to elementary teachers. In this regard, three significant areas of concern arise and are discussed in this paper: (a) The complexity in identifying mathematically promising and mathematically talented elementary students; (b) The highly responsible and difficult task for elementary teachers to differentiate and serve the mathematically promising students within an inclusive classroom; and (c) The need of teachers with specialized training and mathematics knowledge in pre-high school grades. The last one should be considered predominantly as a logical consequence of the first two. The main goal and, hence, the purpose of the paper is to promote understanding of this crucial necessity of mathematics specialists and to advocate for a change in this direction.

• 대한수학교육학회지:학교수학
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• 제19권1호
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• pp.1-18
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• 2017

본 연구는 초등 예비교사의 수학적 문제제기 활동을 관찰하여 그 특징을 파악하고 문제제기 과정이 예비교사에게 제공하는 학습 기회를 분석하였다. 예비교사들의 문제제기 과정은 문제 조건 변형, 문제 성립 조건 탐구, 문제 구조 이해, 문제에서 생성된 개념탐구로 구성되었고, 각 단계에서 문제제기와 수학적 탐구가 결합하면서 다음 단계로 이어졌다. 탐구와 결합된 문제제기를 통해 예비교사들은 기존 개념을 재해석하고 새로운 수학적 대상을 발견하면서 수학적 개념들 사이의 연결성을 이해할 수 있었다. 예비교사들은 수학교육에서 문제제기의 중요성을 인식하였으며, 문제제기는 예비교사들에게 토론과 협력의 기회를 제공하였다.

• 한국수학교육학회지시리즈A:수학교육
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• 제43권2호
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• pp.163-175
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• 2004

We believe new assessment strategies and practices need to be developed that will enable teachers and others to assess students' performance in a manner that reflect the 7th Korean curriculum reform vision for school mathematics. This research was conducted to develop the assessment tasks based on the current literatures such as National Council of Teachers of Mathematics (1999) and Korea Institute of Curriculum & Evaluation(KICE, 2002, 2003) in quadratic functions of the secondary school and to find the effect of these tasks by classifying students' responses. The research instrument were composed of three criteria, the previous knowledge, the application of quadratic functions, and the general properties in functions. The research data were collected from 32 high school students in a suburb of Seoul and sorted by their similarities and differences in mathematical understanding. Through the research, we could know more than ever before about how the students learned mathematics and about how to improve teachers' mathematical instruction.

• 한국학교수학회논문집
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• 제25권2호
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• pp.195-224
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• 2022

본 연구에서는 예비수학교사가 고등학생들의 집단창의성 신장을 위한 모바일 수학 학습 콘텐츠인 애플리케이션 "집단창의성 발현을 위한 E-learning 고등수학"을 활용하여 사범대학 정규교육과정에서 테크놀로지 내용교수지식(TPACK)을 함양하고 수학 수업에서 학생과의 의사소통 능력을 신장하는 방안을 제안하였다. 집단창의성 발현을 위한 애플리케이션을 활용한 예비교사의 수학수업 전문성을 향상하기 위한 교육프로그램은 사전교육, 목표설정, 수업계획, 수업실습, 수업평가 단계로 구성된다. 이 과정에서 예비교사들은 테크놀로지 도구를 평가하였고, 앱의 두 활동에서 고등학생들이 집단창의성을 발현하도록 지도하기 위해 과제대화록, 레슨 플레이, 반성적 저널, 교수·학습지도안을 작성하였다. 교육프로그램 적용 결과, 예비수학교사의 TPACK을 함양할 수 있었고 집단창의성 발현을 위한 학생과의 수학적 의사소통 능력을 신장할 수 있었다.

• East Asian mathematical journal
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• 제33권4호
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• pp.353-380
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• 2017

The purpose of this study is to analyze the multiplication units in the elementary school mathematics. In the 2015 revised curriculum, students learn multiplication in $2^{nd}$ grade. The multiplication units is divided into two: multiplication and multiplication facts. In these two units, we mainly analyze situations involving multiplication, models for teaching multiplication, and multiplication strategies for teaching multiplication facts in relation to Subject Matter Knowledge. We called these contents Multiplication Matter Knowledge. We examined the precedent study with regard to multiplication at the elementary mathematics. As results, we prepared an analysis framework for this study. This study was conducted according to qualitative research methods, expecially 'qualitative contents analysis'. The contents here refer to Multiplication Matter Knowledge that can be found in the elementary mathematics textbooks and working books etc. As results of analysis, We can confirm that various multiplication situations and multiplication models are presented in the textbooks. And it has been examined that various multiplication properties are presented in the textbook according to the multiplication strategy levels. We insist elementary school teachers should be aware of these Multiplication Matter Knowledge. This study aims to provide elementary school teachers with basic data in these contexts.

• 한국수학교육학회지시리즈A:수학교육
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• 제51권3호
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• pp.281-300
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• 2012

This study has examined the current status of mathematics education departments by analyzing its curriculum and teaching methods. We analyzed data set of the number of faculty and students, curricula, textbooks and instructional methods among 23 mathematics education department in Korea. The data reveals that the curricula of the universities of education has shown that more content knowledge subjects are taught than pedagogy knowledge subjects. However, it is important to note that there is increasing emphasis on pedagogical content knowledge. In addition, the curricula of mathematics education departments deal with various aspects of pedagogical content knowledge. What matters is whether the system works for developing a sound and deep understanding of fundamental aspects of the subject matter in future mathematics teachers. The results of the study point to the importance of pedagogical content knowledge and to the essential components that can promote further understanding of effective teaching for preparing future teachers in mathematics education departments.