it shouldn't be insulting to her. if it is, that would be her problem, not yours. you are the one paying for the class. she is teaching a technique, not a specific quilt. bring what makes you happy. it might be difficult to follow, though, when she says 'cut from the green fabric' and you have to remember which is YOUR green fabric :) . you might want to make a small cheat sheet with a piece of each of your fabrics labeled red, green and gold, so you don't get mixed up.