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Teaching Mathematics and its Applications Advance Access published online on October 15, 2007
Teaching Mathematics and its Applications, doi:10.1093/teamat/hrm002
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© The Author 2007. Published by Oxford University Press on behalf of The Institute of Mathematics and its Applications. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org

Original Papers

The Bolyai lamp, a new math manipulative modelling the hyperbolic plane

Zoltan Györfi *

* To whom correspondence should be addressed.
Zoltan Györfi, E-mail: zgyorfi{at}eradimagemedical.com


  Abstract

A simple and easy to understand (even at the high school level) model of the hyperbolic plane will be described. As a math manipulative, this model can be effectively used in the classroom to demonstrate the independence of the axiom of parallelism, a puzzle whose solution took 2000 years.


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