The visit was decided on by outraged school authorities and parents.
Argentinian media report that the fight erupted in Bariloche, an Andean tourism centre, after some Lanus Oeste German School boys sported Hitler moustaches and Nazi swastikas on their bodies.
They will go on an educational trip to the Holocaust Museum in Buenos Aires.
Three of the Lanus Oeste boys were immediately sent back to Buenos Aires from the resort city. The brawl took place during a fancy dress party at a disco on Tuesday night.