Geodesic
Jak to vlastně je?
Učitel matematiky, Tome 22 (2014) no. 2, pp. 112-118.

Voir la notice de l'article provenant de la source Czech Digital Mathematics Library

The article looks into the question whether the article is a special case of a rectangle (as the Czech textbooks of the primary school use such a definition of a rectangle that a square is not its special case). The author considers mathematical, didactic and psychological aspects of the situation of defining a rectangle. The possible definitions of other geometric shapes are discussed. Finally, some tasks are given which come from the era of New Maths for readers to solve.
Classification : 97D99 
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     author = {Vlk, V\'aclav},
     title = {Jak to vlastn\v{e} je?},
     journal = {U\v{c}itel matematiky},
     pages = {112--118},
     publisher = {mathdoc},
     volume = {22},
     number = {2},
     year = {2014},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/UM_2014__22_2_a3/}
}
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Vlk, Václav. Jak to vlastně je?. Učitel matematiky, Tome 22 (2014) no. 2, pp. 112-118. http://geodesic.mathdoc.fr/item/UM_2014__22_2_a3/