Activities/Yupana: Difference between revisions
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== Yupana == | |||
Yupana is an Incan counting device similar to an abacus. | Yupana is an Incan counting device similar to an abacus. | ||
[[File:Yupana.png| | [[File:Yupana.png|300px]] | ||
=== How to use the Yupana === | |||
The beads are organized in columns, where the units (1s) column is farthest to the right; tens (10s) is second from the right; hundreds (100s) is third from the right, etc. | |||
Click on a dot and it will reverse its state (color), and either add or substract value from that column. | |||
More details regarding the history and use of the Yupana can be found here: | |||
[http://cursa.ihmc.us/rid=1J2NH8QTM-2912G6-PZ5/yupana_como_herramienta_pedagogica.pdf Yupana como herramienta pedagogica.pdf] | |||
* '''Did you know''' that you can use the yupana over the network with your friends? | |||
=== Where to get Yupana === | |||
The Yupana activity is available for download from the [http://activities.sugarlabs.org Sugar activity portal]: [http://activities.sugarlabs.org/en-US/sugar/addon/4533 Yupana] | |||
The source code is available on [http://git.sugarlabs.org/yupana the Sugar Labs Gitorious server]. | |||
[[Category:Activity]] | |||