Keep this in mind about the the other wizarding students in GoF

[moorequests]

No: HPFGUIDX 30953


  To whoever asked about the visiting students in GoF: Remember in 
the magical world, small objects are not always as small as they look 
from outside. Remember how a camping tent can be so large and 
luxurious as to have an entire kitchen and bunkbeds, etc? And how a 
small trunk had in it a room in which Prof. Moody was imprisoned? 
Well I think the same thing's implied with the carriage from 
Beaxbatons and Durmstrang's ship.... that they are quite large 
inside, perhaps with many classrooms. So educating the students would 
perhaps be no trouble at all.

 -Molly Denton

 "I must go down to the sea again, to the lonely sea and the sky,
   and all I ask is a tall ship and a star to steer her by"  
   -John Masefield