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Tue Nov 21 19:59:54 EST 2000
The Lee Kai-chen Abacus: I've finally gotten around to scanning the book from which the addition and subtraction instructions are taken. Chapter 4 and 5 show multiplication and division.
Tue Nov 14 16:58:39 EST 2000
FAQ: Updated the FAQ with 1. a new question about schools teaching the abacus; 2. a new pointer for teachers that has a lesson plan for teaching the abacus and 3. some shops in Toronto where abaci may be purchased.
Tue Nov 13 20:10:30 EST 2000
Eric Harshbarger's LEGO abacus: You can also see his other remarkable creations like the LEGO Mona Lisa and a LEGO table.
Nov 12 22:35:57 EST 2000
Correspondence: Just a small sample of email I have had the pleasure to receive, over the years, about the abacus pages.