Q&A #2933

Just can't find a Number Balance!!!

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From: Mrs Babbitt
To: Teacher2Teacher Service
Date: Jan 22, 2000 at 11:17:03
Subject: Just can't find a Number Balance!!!

I have searched and searched but just cannot find a Number Balance.
Remember them from your childhood?  It's just a plastic balance scale
with numbers for weights, but these numbers are balanced so that a two
and a three on one side will be equal in weight to a five on the other.
I'm sure that it would be just the thing to help my youngsters grasp the
concept of addition and subtraction, negative and positive numbers, even
infinity...but I just haven't been able to locate one.
 Can anyone suggest either a catalog or a resource?  It would be much

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