After reading the 'instructors who refuse to spin' thread on the instructors forums:
What is the best way to ensure that you DON'T inadvertently spin the aircraft on turn from base to finals?
Also, should you be unfortunate enough to spin at this point, is there ANYTHING at all you can do, being so close to the ground?
1. Get rid of that instructor for reasons given under 3.
2. a. Fly at correct airspeed, the point Stik makes about the stick position is very true; where I come from the stall is called the 'over-pull'
2.b. Coordinated turns. Forget about top/bottom rudder; skidding slipping just keep that ball in the middle
3. Find yourself a good instructor that can show you the edge of the envelope.
a. Those that have hang-ups about stall/spins are unlikely to be able to give you the appropriate experience.
b. If you have never spun you may not appreciate the potential hazards of them at low altitudes.
Have fun.