\input zb-basic
\input zb-matheduc
\iteman{ZMATH 1997e.03096}
\itemau{Duval, R.}
\itemti{Why to teach geometry?}
\itemso{Mammana, C., ICMI study - Perspectives on the teaching of geometry for the 21st century. ,. 53-58 (1995).}
\itemab
Teaching geometry is more complex and often less successful than teaching numbers and calculation. Therefore why to teach geometry to all students? This question commands another one: how to teach geometry? In order to put forward some ideas to this basic question, we must take in account the underlying cognitive complexity of geometry activity. (orig.)
\itemrv{~}
\itemcc{G10}
\itemut{}
\itemli{}
\end