[Olpc-uruguay] [Sur] Calculadoras Incas

[Fernando Da Rosa]

In this PDF document you can find an interesting article about the yupana
system and its use in teaching.

http://cursa.ihmc.us/rid=1J2NH8QTM-2912G6-PZ5/yupana_como_herramienta_pedagogica.pdf

Saludos
Fernando


> Does anyone know how it actually works? I was investigating this when
> I was developing Visual Match (Dimensions) and Abacus, but everywhere
> I searched I could not find an explanation.
>
> >
> > Saludos!
> >
> > Alan
> >
> > _______________________________________________
> > Lista olpc-Sur
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> >
>
>
>
> --
> Walter Bender
> Sugar Labs
> http://www.sugarlabs.org
> _______________________________________________
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>




-- 
Fernando da Rosa
fernando.darosa at gmail.com
http://www.fedaro.info
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