You have two options for today.
Option 1: continue working on your drawing from Monday in class (the Man Ray inspired image)
Option 2: draw a series of contour drawings of your hand (approx 3-4 min each) on a double page spread in your sketchbook (these should be life size or larger and will prob overlap at least a little bit)
Note: Personally I would rather you use option 1 so that you get in the habit of multiple days of working on the same image so you know what it feels like to have little bits of work gradually add up to larger bits of work. Ultimately the decision is up to you though.