[Olpc-uruguay] [Sur] Calculadoras Incas

[Alan Jhonn Aguiar Schwyn]

> 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.
> 

Maybe this explain a bit.. http://www.que.es/moda/videos/yupana-calculadora-inca-metodo-ensenanza-15039.html
En el video se nombra el departamento de Loreto, Perú. Alguien de ahi puede desasnarnos?
 		 	   		  
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