• 제목/요약/키워드: teachers' mathematical knowledge

검색결과 316건 처리시간 0.023초

Global van Hiele (GVH) Questionnaire as a Tool for Mapping Knowledge and Understanding of Plane and Solid Geometry

  • Patkin, Dorit
    • 한국수학교육학회지시리즈D:수학교육연구
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    • 제18권2호
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    • pp.103-128
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    • 2014
  • This paper presents the Global van Hiele (GVH) questionnaire as a tool for mapping knowledge and understanding of plane and solid geometry. The questionnaire facilitates identification of the respondents' mastery of the first three levels of thinking according to van Hiele theory with regard to key geometrical topics. Teacher-educators can apply this questionnaire for checking preliminary knowledge of mathematics teaching candidates or pre-service teachers. Moreover, it can be used when planning a course or granting exemption from studying in basic geometry courses. The questionnaire can also serve high school mathematics teachers who are interested in exposing their students to multiple-choice questions in geometry.

Prospective Teachers' Understanding of the Constant π and their Knowledge of How to Prove its Constant Nature through the Concept of Linearity

  • Leung, K.C. Issic
    • 한국수학교육학회지시리즈D:수학교육연구
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    • 제18권1호
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    • pp.1-29
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    • 2014
  • When taught the precise definition of ${\pi}$, students may be simply asked to memorize its approximate value without developing a rigorous understanding of the underlying reason of why it is a constant. Measuring the circumferences and diameters of various circles and calculating their ratios might just represent an attempt to verify that ${\pi}$ has an approximate value of 3.14, and will not necessarily result in an adequate understanding about the constant nor formally proves that it is a constant. In this study, we aim to investigate prospective teachers' conceptual understanding of ${\pi}$, and as a constant and whether they can provide a proof of its constant property. The findings show that prospective teachers lack a holistic understanding of the constant nature of ${\pi}$, and reveal how they teach students about this property in an inappropriate approach through a proving activity. We conclude our findings with a suggestion on how to improve the situation.

중등 예비 수학교사들의 수학교수지식(MKT)분석: 정규분포를 중심으로 (Analysis of the Secondary Pre-service Mathematics Teachers' Mathematical Knowledge for Teaching(MKT): Focused on Normal Distribution)

  • 황혜정;채준환
    • 한국학교수학회논문집
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    • 제23권4호
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    • pp.427-448
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    • 2020
  • 본 연구는 정규분포에 관한 예비 수학교사의 수학교수지식(Mathematical Knowledge for Teaching)을 수학교수지식의 하위 요소 간 비교 분석을 통해 확인하고, 예비 수학교사의 수학교수지식의 하위 요소 간 차이가 발생하는 것을 확인해 보고자 한다. 이를 위해 예비 수학교사 24명을 대상으로 정규분포에 관한 MKT 검사지를 제작하여 검사를 실행하여 자료를 수집하였다. MKT 검사지 분석 결과 예비 수학교사의 일반 내용 지식(Common Content Knowledge)은 비교적 높은 점수의 결과로 확인된 것에 비해 특수 내용 지식(Specialized Content Knowledge)과 내용과 학생에 대한 지식(Knowledge of Content and Students)에 관한 결과는 비교적 낮은 점수로 볼 수 있었다. 또한, 이러한 결과를 통하여 예비 수학교사의 MKT의 차이가 발생하는가를 알아보고자 하였다.

분수 나눗셈의 문장제에 대한 초등 교사들의 전문화된 내용지식(SCK) 분석 (Analysis of Elementary Teachers' Specialized Content Knowledge(SCK) for the word problems of fraction division)

  • 강영란;조정수;김진환
    • 한국수학교육학회지시리즈E:수학교육논문집
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    • 제26권3호
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    • pp.301-316
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    • 2012
  • Ball, Thames, Phelps(2008)는 수학을 가르치는 교사에게는 특별히 수학 가르침을 위한 지식(MTK)이 필요하다고 주장을 하면서 그 하위 영역으로 학생들이 분수의 나눗셈을 수행하는 것에 대해 평가할 수 있는 교사의 능력과 같이 특정 영역에 대한 지식과 기술을 의미하는 전문화된 내용 지식(SCK)을 제시하였다. 본 연구에서는 초등 6학년 학생들에게 교과서에서 유일하게 제시된, 문장제 만들기, 즉 분수 나눗셈 $9/10{\div}2/5$에 알맞은 문장제 문제를 만들게 하였고, 이들이 제시한 답의 유형을 네 가지의 유형으로 분류하였다. 각 대표적인 유형의 답들을 선택하여 초등 6학년을 지도한 경험이 있는 10명의 교사들에게 제공하였고, 이 답들에 대한 평가를 하는 과정에서 나타나는 오류와 분수 나눗셈에 대한 문장제의 의미를 통해 교사들의 전문화된 내용 지식(SCK)을 분석하였다.

중학교 영재학생과 예비교사의 영(0)에 관한 인식과 오류 (Conceptual errors related to zero by secondary school gifted student and preservice teachers)

  • 박지현
    • 한국수학교육학회지시리즈A:수학교육
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    • 제46권4호
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    • pp.357-369
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    • 2007
  • Teachers and students' knowledge of zero was investigated through data collected from 16 preservice secondary mathematics teachers and 20 gifted secondary school students. Results showed that these teachers and students had an inadequate knowledge about zero. They exhibited a reluctance to accept zero as an attribute for classification, confusion as to whether or not zero is a number, and stable patterns of computational error. Although leachers and researchers have long recognized the value of analyzing student errors for diagnosis and remediation, students have not been encouraged to take advantage of errors as learning opportunities in mathematics instruction. The article suggests using errors as springboards for inquiry in action, discusses its potential contributions to mathematics instruction by analyzing students and preservice teachers errors related to zero.

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Awareness and Knowledge of Pre-Service Teachers on Mathematical Concepts: Arithmetic Series Case Study

  • Ilya, Sinitsky;Bat-Sheva, Ilany
    • 한국수학교육학회지시리즈D:수학교육연구
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    • 제12권3호
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    • pp.215-233
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    • 2008
  • Deep comprehension of basic mathematical notions and concepts is a basic condition of a successful teaching. Some elements of algebraic thinking belong to the elementary school mathematics. The question "What stays the same and what changes?" link arithmetic problems with algebraic conception of variable. We have studied beliefs and comprehensions of future elementary school mathematics teachers on early algebra. Pre-service teachers from three academic pedagogical colleges deal with mathematical problems from the pre-algebra point of view, with the emphasis on changes and invariants. The idea is that the intensive use of non-formal algebra may help learners to construct a better understanding of fundamental ideas of arithmetic on the strong basis of algebraic thinking. In this article the study concerning arithmetic series is described. Considerable number of pre-service teachers moved from formulas to deep comprehension of the subject. Additionally, there are indications of ability to apply the conception of change and invariance in other mathematical and didactical contexts.

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Elementary Preservice Teachers' Noticing and Evaluation of Digital Mathematical Resources

  • Sheunghyun Yeo
    • 한국수학교육학회지시리즈D:수학교육연구
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    • 제26권2호
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    • pp.105-120
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    • 2023
  • With the rapid advancement of educational technology, recent studies have connected teachers' professional noticing with the use of digital resources in mathematical instructions. In this study, I examined elementary mathematics preservice teachers' attending and interpreting a mathematical software, ST Math, in the exploring and implementing phases. The findings indicate that preservice teachers paid attention to visual representations and manipulation prior to interactions with children and further took into consideration on task structures and situated context after interactions. They interpreted the events based on connected mathematical knowledge of prior interactions and further reflected on the progression of problem-solving strategies and sequence of tasks. In addition, four distinctive profiles of transitioning of evaluation on ST Math activities were identified with illustrations. Implications for noticing and teacher education were discussed.

다항식의 해법에 대한 수학교사의 대수 내용지식과 자립연수 가능성 탐색 (A Study on Algebraic Knowledge of Mathematics Teachers on Solving Polynomials and Searching Possibility of Self Learning the Knowledge)

  • 신현용;한인기
    • 한국수학교육학회지시리즈E:수학교육논문집
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    • 제29권4호
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    • pp.661-685
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    • 2015
  • 본 연구는 수학교사의 전문성을 신장시킬 수 있는 구체적인 가능성을 탐색하는 연구로, 다항식의 해법에 대한 수학교사의 대수 내용지식을 선정하고, 선정된 내용지식을 바탕으로 수학교사의 자립연수를 위한 학습 자료를 개발하였다. 개발된 학습 자료는 수학교사들에게 제공되었으며, 학습 자료가 자립연수에서 활용 가능한지, 수학교사들이 이해 가능한지 등에 대해 검사지로 조사하였고, 연수 방법 및 내용에 대해서도 설문을 하였다. 교사들의 대답을 분석한 결과, 개발된 학습 자료는 자립연수의 활용 가능성, 교사들의 이해 가능성, 연수 방법에 대해 긍정적인 결과를 얻었다.

중등 예비교사의 수학적 지식 - y=1, y=x, x=0, $x^2+y^2=1$의 그래프 - (Preservice Secondary Mathematics Teachers' Mathematical Content Knowledge: Graphical Representation of y=1, y=x, x=0, $x^2+y^2=1$)

  • 한정순;차인숙
    • 한국수학교육학회지시리즈A:수학교육
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    • 제45권1호
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    • pp.105-121
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    • 2006
  • The purpose of this study is to investigate preservice secondary mathematics teachers' knowledge about graphical representation and provide implications for better mathematics teaching and learning in our schools. For this purpose, sixty-three preservice teachers were selected and given diverse graphical representation problems of y=1, y=x, x=0, $x^2+y^2=1$. All preservice teachers completed two types of questionnaires. First type is about constructing the graphs of the above each equation, and the second one is to make them find the appropriate graphs from given examples of the each equation. The results indicated that all the participant pre service teachers were unable to construct graphs in terms of various dimensions and various direction of coordinate axis. All of the participants represented the graph of each equation on only two-dimensional coordinate system. In addition, some preservice teachers believed that the axis of coordinates have to be x-axis on horizontal line and y-axis on vertical line. From this study, it is implicated that pre service teacher education program needs to provide the experience of representing the graphs of equation in terms of various dimensions and various direction of coordinate axis so as to develop their future students the flexibility and creativity in mathematical thinking especially in the area of space perception.

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평면도형에 대한 교사의 PCK와 수업 실제의 비교 분석 (Comparative Analysis of the PCK of Teachers on Plane Figure and Their Educational Practice)

  • 곽주철;류희수
    • 대한수학교육학회지:학교수학
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    • 제10권3호
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    • pp.423-441
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    • 2008
  • 교사의 수업 실제에 대한 개선이 절실히 요구되고 있는 상황에서 수학과 교육 전문성 향상을 위하여 본 연구는 교사의 PCK(Pedagogical Content Knowledge)의 특징을 알아보고, 교사의 PCK를 구분한 후 분석 준거에 의거하여 교사의 수학 수업의 실제를 관찰 및 분석하였다. 이에 초등학교 3학년 평면도형 단원을 선정하여 네 명의 서로 다른 PCK를 갖춘 교사를 대상으로 교사의 PCK와 수업을 비교 분석하는 연구를 실시하였다. PCK 수준에 따라 교사의 수업은 다르게 전개되었으며, PCK가 풍부할 때와 PCK가 부족할 때의 수업은 큰 차이를 보였다.

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