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The Abacas

The Abacas

This site is absolutely excellent with the information that pertains to the abacas and why the abaca was used and what it was used for. I think this site is a great tool on how to understand the meaning of the abacus and also what every bead does for math.

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Brittany Ross-Badillo
12 years ago
Very VERY informative site! What I appreciated most was the way the information is given; it reaches across many levels of reading comprehension. The way the page is layed out flows very nicely and keeps your attention the whole way through without being dry. One will walk away from this site learning alot.

Technical Remarks:

This site is extremely well organized and easy to follow! Every piece of information is relevant. The author uses a language that is very clear and communicative.
Time spent reviewing site: approx 30-35 mins.