It'll be to the aircraft checklists used by the individual school.
If you know where you're likely to go, see if they'll sell you a set early (normally a simple aeroplane and a complex aeroplane: my school used a PA38-112 then a PA28R-200.) That'll show you the preferred practices.
It might be worth an hour or two early with a CPL instructor if you have any at Stapleford so they can show you the way it's taught?
G