[nfb-talk] abacus needed

[Powers, Terry (NIH/OD/DEAS) [E]]

Mike;
How can you have ten beads, it should be nine.  Our numbers go zero to
nine.  Then we go to the next tolumn or the tens.
I have only used the one with a bead for five and four one beads.

Terry Powers
 

-----Original Message-----
From: Michael Bullis [mailto:mabullis at hotmail.com] 
Sent: Sunday, February 08, 2009 5:03 PM
To: 'NFB Talk Mailing List'
Subject: Re: [nfb-talk] abacus needed

Actually, I have found the cranmer abacus at aph as Ken suggests.  I'm
looking for a ten bead abacus but I don't know what that's called.  I
think math makes more sense to kids when there are ten beads.  The value
of the cranmer was in speed of use but in early learning I liked the ten
bead.
Mike
 

-----Original Message-----
From: nfb-talk-bounces at nfbnet.org [mailto:nfb-talk-bounces at nfbnet.org]
On Behalf Of Alicia Richards
Sent: Sunday, February 08, 2009 4:32 PM
To: mabullis at hotmail.com; NFB Talk Mailing List
Subject: Re: [nfb-talk] abacus needed

Mike, are you talking about a Cranmer abacus, or something different? 

Alicia 

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