Division of Fractions demo - Reciprocals, Inverses
Date: Around 1993
Is there a great hands on way to explain division of fractions to
sixth graders without the age old, "it's not for you to reason why, just
invert and multiply?"
Division is usually defined as multiplication by reciprocals or
inverses. In this case, starting with (m/n)/(p/q), multiply the numerator and
denominator by q/p and simplify the denominator to 1 and you have proved it.
I do not know how this is great or hands on, but it is an idea.
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Update: June 2012