Greaterexp, as a friend to the instructor, I know she did many of the things you talked about. Kudos to all you teachers working with a group with varying expertise in the art of sewing. We had one who was already in her mid 70's who could not wrap her mind around cutting with a rotary cutter. Her eyesight was not the best either and she didn't always catch the two pieces of fabric in the seam. But we loved her and corrected it, hopefully without her knowing about it, except for when she asked for help.