I usually teach:
Power Up...i.e. full power
Pitch Up ...to horizon = shallow climb attitude
Gear Up...if fitted
Drag Flap UP ...i.e to 2nd stage
then when +ve rate of climb, flap away in stages, maintaining nose on horizon.
However, CAAFU examiner has told me that the 'correct procedure' is to wait for +ROC before putting gear up. This provides some protection if the aircraft has high inertia and is still going down and may strike the ground.