I would like to pick-up on the T&G argument. My experience is that low-houred (or how about early Ex12/13?) student pilots get rather tense with landings, try to fly by numbers and have a tendency to rush. All too often do I sit with a student pilot who hasn't completed his landing before he commences his take-off. This leads to some interesting 'rollers' where the aircraft may be wrongly configured and almost certainly drifting off the centreline.
So, in the early sessions I'm concentrating (or getting the student pilot to concentrate) on landing the aircraft (to be precise, I'm getting him to expect to go-around or land if everything turns out fine). Once he is in the groove, I'll start to load him with more tasks, ultimately leading to T&Gs. But, the chap is now conditioned to alway prioritise with a G/A, Land or T&G in that particular order.