types of tools

From: Peter Smagorinsky (smago@coe.uga.edu)
Date: Wed Jul 31 2002 - 03:25:46 PDT


A question to help me get through a memory lapse: I recently read (and
can't remember where) something in which the writer identified 3 types of
tools from a CHAT perspective: material, psychological, and ??? Any help
here? thanks,Peter



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