Education of Primary School Mathematics (한국수학교육학회지시리즈C:초등수학교육)
- Volume 3 Issue 2
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- Pages.103-107
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- 1999
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- 1226-6914(pISSN)
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- 2287-9927(eISSN)
Exploring Area of Polygons Using Computer Dot Board
컴퓨터로 구성한 점자판에서 면적 개념의 탐구
Abstract
This article introduces a proposed lesson to help younger or lower level mathematics students conceptualize area. The objective for the proposed lesson was for the student to demonstrate an understanding of the concept of area by identifying the area, in square units, of polygons drawn on computer dot board constructed by computer software, Geometer's Sketchpad. The concept of covering is the key to develop the concept of the area. The article proceeded from rectangular figures, to right-triangular figures, to non-right triangular figures, then to polygons to find the area and develop the formula for the area of the figures. It is meaningful that this kind of materials can be developed within interactive computer environment since students feel successful in loaming and teachers use them directly in their measurement classes.
Keywords