Ask anyone in North America in their late 30's, and yes, we all used Apple II's and IIGS's in school.
Not in Canada. Here (at least in Ontario) all the schools had Commodore PETs, then later moved onto C64s, for a brief stint the UNISYS ICON computer, and finally Commodore produced PCs.
Commodore really had the educational market wrapped up here (although I understand there were a few schools that used Apples).