Your observation is correct - everything is done in the last minute. We, Bulgarians, rarely plan and that's part of the reason why everybody is so stressed and inefficient. Have you ever considered suggsting to the school a way to communicate things - the term schedules, the teachers' meetings. I know it sounds crazy, but such basic things may be brand new idea :). Students may get enthusiastic, especially if they get involved in implementing it on a website or something like that...