No i think it's a great thing, i wish i could do that too, in fact, a girl in my class has missed too many days off school that now she has to study herself at home and she's only allowed to come into school for her exams, i don't think that's 'punishment' at all
but, sometimes you do need to ask teachers for help/need some resources or clarification, and they add information which may not be in the textbook, but that still means you shouldn't need to go into school 5 days a week, oh well
i'd say miss it only if it's to revise for something important, before study leave is preferable, for now stick through it
but i also have this issue too everyone in our sixth form just talks and messes around, super annoying