Thread: Teaching classes - Pay scale

I'm wondering about those of you who get paid based on the pay scale rather than flat rate or percentage... how does your pay scale looks like?

The couple arrangements I've heard about are:

Under 8 students - $40, then $5 each additional person;

less then 8 - $40, 11-16 - $50, 17-19 - $55, 20+ - $65...

anything else?

I teach at my university's student recreation center. I get paid based on the number of contact hours for my classes, not a body count (though there is a minimum enrollment of 8 required for my classes to "make" and not get cancelled). It ends up being basically an hourly wage (paid in one lump sum at the end of my class sessions).