Via YLE:
Schools across Finland are organizing Christmas celebrations for students. Most schools say they are doing their best to also provide for pupils who are not members of Finland's dominant Lutheran church.
Christmas carols resounded in Helsinki's Cathedral as pupils of the Katajanokka primary school practiced their church performance on Tuesday. However, a third of the students stayed back at the school. Many of them belong to other faiths. In the effort to include as many students as possible in the school-wide celebration scheduled for next week, the school chose to lessen the religious focus of the holiday.
Many other schools face similar decisions. Each school selects its own Christmas programme for itself. There are no official guidelines as to how many Christmas carols would be too many.(source)
