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Q&A #740


Activity to show (a+b)^2 = (a+b)(a+b)

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From: Claudia (for Teacher2Teacher Service)
Date: Nov 03, 1998 at 21:08:07
Subject: Re: Activity to show (a+b)^2 = (a+b)(a+b)

Gail is exactly right!  Get yourself a set of some kind of algebra tiles and
you will have no problem! There is a computer version of algeblocks if you
cannot get the real tiles.

www.math.swep.com

You can also use a graphing calculator. Have the students graph (x+2)^2
listed at y1 and  x^2+4 in y2. When they see the graphs are not equal, have
them try x^2+4x+4 to get the SAME graph.

 -Claudia, for the Teacher2Teacher service

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