One very upset (and before you ask) experienced, professional, fully insured and qualified Latin teacher).
Interesting dilemma........ If you are as you say " fully etc." , then you surely must have run into this before ?
I have this happen quite frequently in ALL the genres I teach.
It, to me, would depend on the number of people who were in the beginner div. and if in sufficient numbers ( which I do now in some of my classes ) I teach a " split " class.( even if not, would take aside the few and give them more advanced work )
By this I mmean dividing them into 2 groups and giving each group an assignment that will keep them occupied as rotate the class .
I also would confront the person who employed you, and explain in detail the complexity of teaching a mixed group . One always has to consider that the majority of venues know little or nothing about class " make up " . So.... this should always be discussed before the event .
By the way.. I admire your standing, on principle .
And, I would consult an attorney.. I do not believe that payment can be withheld
follow-ups:
(none)
post a follow-up:
Enter your follow-up message below and then press the 'Submit' button. Use the
above 'Quote Highlighted Text' button to add selected text to your message, in
the form of a quote. Quoted text appears inside <quote>....</quote>.