"....simultaneously applying the requird power and pitching up to the stall. In aircraft such as the 152, it is not unusual for the exercise to be accomplished at full throttle."
Such deliberate mishandling seems totally inappropriate and positively invites an incipient spin.
Hence my comment about ensuring that the a/c is in the utility category; it should also be cleared for intentional spinning!
The CAA/JAA preference for stall 'awareness' seems considerably safer and more realistic to me.