The issues that you raise are contractual issues and should be taken to your local authority and/or union if you are unable to get a satisfactory response from your school.
If you are on the TIS you should not be working a .8 – you should be on a maximum of a .7 contact time and have .3 CPD.
If you have concerns with your timetable you should discuss them with the school, Local Authority Probation Manager and/or the GTCS Probation Department probation@gtcs.org.uk to ensure that your timetable is acceptable.
Posted by: GTCS Probation Department