Hi JF,
No objection to using a structured introduction and going from the benign demonstration to the real wold situation involving the more aggressive AOA excursion in the way you describe; indeed this seems an ideal learning process.
Your patter is nice and I've used similar myself, particularly with the nervous student. You will see from my examples above that I advocate teaching staling in realistic scenarios but the gentle measured approach you describe is a perfect introduction.
I was uncomfortable with the comments made earlier in the thread to the effect that QFIs "should teach students to stall like TPs do it and not S&L, idle thrust which is too scary" (paraphrased of course!).
No need for us to agree to disagree ... we are in complete agreement!
Happy landings
3 Point