As an aerobatic instructor you become VERY tuned in to control pressures and coordination, and this transfers back all the way to primary basics.
My opinion on teaching turning is to introduce it early as a visual reference maneuver and keep the student outside the cockpit. There's plenty of time to get into instruments as you progress past the basic coordination involved with turns, and visual cues are best introduced initially to help the student recognize proper turn entry and exit coordination.
Medium turns using medium bank are the optimum tool to use in introducing turns as the aircraft is more stable in that range with little underbank and overbank.
Use the HORIZON as the T&B indicator and NOT the T&B indicator on the panel. The nose of the aircraft will instantly show the student the quality of the turn entry and exit from the turn, as adverse yaw is instantly visually apparent using this visual cue.
Let the student experiment with aileron and rudder as they watch the nose, after you have explained that for the entry to be coordinated, the nose will be pinned on the horizon during the roll into the turn. Demonstrate a PINNED entry to a medium turn as you keep the student's eyes solidly on the nose of the aircraft. Demonstrate both excessive rudder and inadequate rudder for the aileron you are using both entering and exiting the turn and allow the student to see the resulting slew of the nose on the horizon resulting from lack of proper coordination. Demonstrate the need for increased angle of attack to manage the split lift vectors you discussed with the student BEFORE YOU TOOK OFF!
Let the student do most of the flying. NEVER take over the controls a second longer than absolutely necessary to demonstrate technique. Also keep the 'Theory discussion" limited while in flight. Do the theory on the ground before flying dual with the student, then discuss it again after the flight. What's key is letting the student fly the airplane while you correct and guide.
This is important! Use medium turns to introduce the student to turn. It's in medium banked turn where the student can handle the learning curve for control pressure and coordination most easily.
Once comfortable with medium turns and the student's using the nose on the horizon as the visual cue and handling the medium turn well, THEN introduce shallow banked turns and steep turns with the underbank, overbank, and increased back pressure these turns require.
Hope this helps a bit.
Dudley Henriques