I teach 'Point and power'. Select your aiming point and adjust power and flaps to control the speed.
Of course realy its a combination of both if you increase power your nose wants to pitch up so you increase forward pressure to maintain your attitude and your speed increases. You just cannot do one with out the other.
I explain this marriage of thrust/attitude to my students and point and power seems the easyist way to teach it.
A few of you seem to disagree, fair enough as I said its a combination of both, but I'll tell you one thing the students taught 'point and power' learn quicker and have more stable approaches with very little throttle movement.