Modern Principles of Shaping - 10. Quit while you're ahead!

I'm writing a 10 part blog post where I discuss the Modern Principles of Shaping by Karen Pryor, to help solidify them in my mind.

10.   Quit while you’re ahead. End each session with something the learner finds reinforcing. If possible, end a session on a strong behavioral response, but, at any rate, try to end with your learner still eager to go on.

1. Stop the session on a postive note.  Specifically, a situation where the learner gets a C/T.  
2. When ending, make sure to either stop with a C/T where the learner does something good OR manufacture one by going back a step or two, so the learner gets a reward to remember for next time.  
3. Ending with the learner eager to continue is hard.  If the learner is eager to continue, stopping could be interpreted as a punisher.  But it also makes the more likely to come back next time with renewed vigor.  
4. A jackpot doesn't need to come at the end, but it could help if occasionally the jackpots are at the end and distract the learner from the fact that the session is over. 

I'm not really in agreement with this wording.  It is really focused on the goals of the teacher, which make sense because the Principles of Shaping are geared toward putting together a shaping plan with a learner.  But, it is the learner who you need to keep engaged and if engagement drops off you as the teacher have to realize it and stop.