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*To*: <xmca@weber.ucsd.edu>*Subject*: Re: education, technology & chat (The Mathematics of it)*From*: "Peg Griffin" <Peg.Griffin@worldnet.att.net>*Date*: Wed, 10 Nov 2004 23:52:24 -0600*Delivered-to*: xmca@weber.ucsd.edu*Old-return-path*: <owner-xmca@weber.ucsd.edu>*Reply-to*: xmca@weber.ucsd.edu*Resent-date*: Wed, 10 Nov 2004 21:45:36 -0800 (PST)*Resent-from*: xmca@weber.ucsd.edu*Resent-message-id*: <ykxhTB.A.Yd.AyvkBB@weber>*Resent-sender*: xmca-request@weber.ucsd.edu

Thanks, again,
Bill.
The links were useful. I can see that teacher and child discussions could develop quite elaborated apprehension of the attributes of the shapes and compositionality. I was curious about three things on the easel note. Maybe the talk in the class allowed the group to address the matters or to dance past them because another part of the curriculum is going to highlight them. Anyhow, the first thing was the squares and rectangles in the list of quadrilaterals: Does it come up that squares are rectangles, that the sort of things that make a rectangle different from, say, a rhombus is of a different order than the difference between squares and other rectangles? The second thing was about the "big, small" and "big, skinny": Are those treated in the talk more like, say, color (and not mathematized) than they are like, say, side or point? The third thing is the difference in sophistication of terms between types of triangles and types of quadrilaterals: If you use 'quadrilateral' doesn't it fairly ooze out that some triangles are equilateral, and isn't it wonderfully odd that one shape has laterality as the hypernym but the other uses angularity? I'm guessing that the so-called correlations to the NCTM standards that they say are provided by Scott Foresman would have the most information about what mathematics learning/development ideas motivate the lesson content; is that so? Peg Peg Griffin
329A Cloverdale Rd. Montgomery, AL 36104 (334) 265-4468 Peg.Griffin@worldnet.att.net Research Affiliation: Laboratory of Comparative Human Cognition |

**Follow-Ups**:**Re: education, technology & chat (The Mathematics of it)***From:*Wolff-Michael Roth <mroth@uvic.ca>

**Re: education, technology & chat (The Mathematics of it)***From:*Bill Barowy <xmcageek@comcast.net>

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