when I was in primary school i can hardly remember getting days off, so much so they were special. Nowadays school kids need and use google calendars to track days off, holidays, in service days, half days, first fridays, parent teacher afternoons, mid terms, end of terms; bank holidays and summer hols. It would be easier to fill in the “IN” days. There may have been 44 kids in my class but we were in school from Sept – June.