Early Development of Mathematical Concepts Using Dynamic Geometry

Abstract

The appropriate use of technology in mathematics teaching can greatly support teaching and learning of mathematics. On the one hand technology can be supportive in learning how mathematical knowledge can be used, while on the other hand it offers an essential support to the appropriate development of mathematical concepts. Geometry is an important part of school mathematics - it is an area in which the students learn to build a mathematical (geometrical) model of real situation already in early school years. Therefore it is of great importance that the geometrical concepts are developed appropriately - in terms of basic mathematical concepts, which will be built upon in the next 8-10 school years. Dynamic Geometry Software (DGS) offers tools and possibilities, which can considerably improve teaching of basic geometrical concepts in the primary (as well as in higher) grades. We use Cabri Geometre II to show, discuss, and analyze examples on how DGS can support development of generic geometrical concepts in the first years of learning mathematics.