Material Detail



Complete sim of an abacus, and it even translates the bead positions into a numerical representation. Includes tutorials on adding and subtracting with an abacus, as well as info on the history and cultural background of the tool. Source code freely available.


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chris coakley
chris coakley (Student)
13 years ago
Intersting site and getting more fluid in browsing sites. I was mainly interested in the history of the abacus and this site directed me in just what I wanted to find out.

Technical Remarks:

Very easy to navigate to, and very simple to understand the history of the ancient mathmatical tool. This site shows how far in a very short ammount of time, as wellas, the appreciation of my calculator.
Time spent reviewing site: 15-20 minutes.
alicia paur
alicia paur (null)
15 years ago
Demasiado simple, existen dos entradas para el mismo Objeto de Aprendizaje, el segundo Objeto de Aprendizaje no responde al link que tiene

Technical Remarks:

el abaco no muestra el nĂºmero ingresado completamente (solo las dos primeras cifras)