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TitleVizualizácia rozdielov medzi racionálnymi a iracionálnymi číslami
English TitleVisualization of Differences between Rational and Irrational Numbers
MESC
Bibtex cite ID
Journal Obzory matematiky, fyziky a informatiky
Year published 2014
Volume 43
Number 4
Pages 17-26
ISSN 1335-4981
Abstract
In present time, a weak attention is devoted to real numbers teaching in grammar schools. The students have serious difficulties to determine the representatives of rational and irrational numbers, and to represent a real number on a number axis. This article demonstrates how to make an appropriate use of mathematical software for the visualization of the difference between rational and irrational numbers. We introduce a proposal of visualization of Pythagorean Theorem based on the ancient idea of commensurability. The demonstration of the diference between rational and irrational numbers is also shown on the example of "barcode" and "number walk".
Authors
Madaras, Tomáš
Kanáliková, Andrea
Topics
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  Based on Aigaion, modifications MD© 2007