I taught my final drawing 1 class at the Alberta College of Art ad Design this year. I like to start with a self portrait and end on the same note in order to contrast and compare the improvements made through 24+ hrs of learning with me, it tends to be quite a difference. Some drew better from life than from photo even. In my 45 min lesson/demo I did a bunch of notes on the board of things to now and look for when drawing the face and head. I just managed to snap the end of much erasing ad drawing with a white board marker but you get the gist of it.