Discussion:  All Topics 
Topic:  teaching about scale 
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Subject:  RE: teaching about scale 
Author:  Alan Cooper 
Date:  Jun 15 2005 
of function graphs, but still the topic might be addressed with something
similar to my Shift&Scale applet
(see http://www.langara.bc.ca/~acooper/mathlets/Shift&Scale/index.htm )
 perhaps with the equation given in terms of x and y rather than as a function,
and with the controls being restricted to replacing x with ax, or y with by (for
parameters a and b), and independent zooming of width and height.
This would not take long to set up if you are interested.
cheers,
Alan
 
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