I would want the instructor to be up to date on the best methods for making basic four patchs, HST etc.
There are so many different ways and gadgets for doing this.
By watching many experts on QNNTV and QuiltersTV I have learned so much and I would expect the teacher to be well informed on all the different ways to make quilting easier.
Also have lists of everything you need to bring to class.
Knowledge on all the different sewing machine feet would be nice to know also.
Make the class a fun and memorable expierience.
I think it is great that you are asking for our input, that shows me you really care and want to do the best class posible.