When I used to teach classes, I made sure that everyone left with a completed project. I let them use my tools, rulers, mats, etc., so they were not out more than the cost of the fabric. They were able to see which brand of cutters they liked, which mats they liked, which ruler worked best for them, etc. Then they could go out and purchase what they wanted or liked. I have bought expensive tools listed in the class requirements and never used them. Not everyone can teach and I tried to make sure to anticipate questions that might arise. I, too, have had some super teachers and some not so super teachers. One does have to speak up, but the directions for the classes must be clear. KNOW how to thread your machine before you hit the door; don't expect the teacher to educate you in the rudiments of machine piecing, etc. Don't blame the teacher if you haven't done your part before you get there.