I'm 6.4 and my timetable is spread over four days, however one of the days I only teach the last lesson so can hav half a day off and one full day off as well. So not so bad there. In the state sector here schools are required to group part time teachers hours into sessions - there is a little give and take but broadly speaking my school manages this. They have also paid me for the hours I don't teach between a sceduled lunchtime activity and a teaching period, giving me some paid time to prepare the extra curricular. However, I only do three activities, two choirs and an orchestra and have refused to do more sessions - I teach .64 and so they get .64 extra -curricular. If i was full time (and had proportionally more prep time) I might do more. In the UK extra curricular activities are not currently contractual (no mater what a particular school puts in its contract - national terms and conditions prohibit teachers to be forced to additional activites that are effectively teaching). However, the new accadamies do not have to adopt pay and conditions, so watch out!