Geodesic
Reálná čísla ve školské matematice
Učitel matematiky, Tome 23 (2015) no. 2, pp. 105-120

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The contribution deals with real numbers at the primary school. We consider concrete numbers - some roots, Number pi. Pupils can use these numbers in calculations as decimal numbers and do not realise that these are different kinds of numbers. We show a possibility of working with the numbers so that the functional thinking and limit thinking is developed. 
@article{UM_2015__23_2_a3,
     author = {Bud{\'\i}nov\'a, Irena},
     title = {Re\'aln\'a \v{c}{\'\i}sla ve \v{s}kolsk\'e matematice},
     journal = {U\v{c}itel matematiky},
     pages = {105--120},
     publisher = {mathdoc},
     volume = {23},
     number = {2},
     year = {2015},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/UM_2015__23_2_a3/}
}
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Budínová, Irena. Reálná čísla ve školské matematice. Učitel matematiky, Tome 23 (2015) no. 2, pp. 105-120. http://geodesic.mathdoc.fr/item/UM_2015__23_2_a3/