So I guess I am talking about some very primitive ability to find the center, somehow without adding. We call it average, fine, but that might disconnect average from the student's idea of center, and then when average is defined by a formula and the formula involves adding the numbers, they might think that the more numbers there are, the higher the average.
A precursor to this is the basic idea that they have to have OF average ... OF center ... w/o that ... they won't have a clue
So, where is it in school ... or home ... that this notion of "average" first (approximately) takes place?
Dennis Roberts
[EMAIL PROTECTED]
http://www.personal.psu.edu/users/d/m/dmr/droberts.htm
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