‘좌우대칭 자’를 활용한 5학년 학생들의 점대칭도형의 의미 이해

• 영문명: A Study on 5th Graders Understandings of the Meaning of Symmetric Figure for a Point Using the ‘Bilateral Symmetric Ruler’
• 발행기관: 한국교원대학교 뇌·AI기반교육연구소
• 저자명: 김순영(Sun-Young Kim) 이광호(Kwang-Ho Lee)
• 간행물 정보: 『Brain, Digital, & Learning』제9권 제3호, 253~270쪽, 전체 18쪽
• 주제분류: 사회과학 > 교육학
• 파일형태: PDF
• 발행일자: 2019.09.30

영문 초록

The purpose of this study is to analyze 5th graders’ Understandings of the meaning of Symmetric Figure for a Point and the types of problems or errors while constructing and to develop student’s Understandings using the New Educational Method. By the literature I arranged the complex meaning of ‘Symmetry’ in the sight of transformation, analyzed curriculums of Korea and other countries about ‘Point Symmetry’, and found out the cause of students’ difficulties while constructing the Symmetric Figure for a Point. For solving this problem I made the ‘Bilateral Symmetric Ruler’ and ‘Problems without the grid’. And students had the lessons of construction of Symmetric Figure for a Point using them. After the lesson, I analyzed the effectiveness of the new educational method using the questionnaire and the interview.

목차

I. Introduction

II. Theoretical Background

Ⅲ . Materials and Methods

Ⅳ. Results and Discussions

Ⅴ. Conclusions and Implications

키워드

Symmetry point symmetry symmetric figure for a point rotation reflection point reflection construction bilateral symmetric ruler