I think I know what you are asking. I teach the student pilot to configure the aircraft in the manner they will for base-to-final when doing ccts (in the 152/172 two stages of flap, 65-70kts descending with about 1500-1700rpm). I then get them to commence the turn with 15-20deg of bank, simulating base-to-final. I then encourage them to ease back on the controls whilst maintaining a balanced turn. They are to recover on the first indication of an impending stall (normally stall warner). If they react too early, I take them a little further. Sometime during the exercise I will ensure that they experience the scenario taken to the logical conclusion. (I do enjoy it when they fail to ensure the turn is balanced
).