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[Rcjohnsen]

You don't indicate what kind of computer the students will use but I have
found Intellimation for the MacIntosh at P.O. Box 1530,  Santa Barbara,
California  93116-1530 or phone 805-968-2291 to be very helpful.  If they
can't help you directly they may direct you in your quest to get
appropriate materials .
Rcjohnsen at aol.com