Hey
there are some great examples of how to set out proposals around here....
if you look in the thread below, some people have been kind enough to show us how they did theirs...
also remember it does also depend on the teacher to some extent, as with everything, each teacher has a favourite way of things being done.... so maybe check by your teacher too.. run ideas off them etc...
If you are still really stuck, teachers are there to teach... not to just tell you to do something and you being able to do it straight away
when in doubt, ask
Im sure they would rather you ask and be confident in your work
http://community.boredofstudies.org/showthread.php?t=51384