Why is the learning of elementary arithmetic concepts difficult? Semiotic tools for understanding the nature of mathematical objects.
| Autor: | Godino, Juan1 jgodino@ugr.es, Font, Vicenç2 vfont@ub.edu, Wilhelmi, Miguel3 miguelr.wilhelmi@unavarra.es, Lurduy, Orlando4 jolurduy@udistrital.edu.co |
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| Zdroj: | Educational Studies in Mathematics. Jul2011, Vol. 77 Issue 2/3, p247-265. 19p. 2 Diagrams, 4 Charts. |
| Databáze: | Academic Search Ultimate |
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