Trace the shadow of your sculpture - foil figure or another object with a clearly identifiable shape. Ask, "If I hold the light here, will the shadow move?" Explore how the shadow elongates and shortens as the light is moved.
Foil gesture drawing with shadow. It could be a good tie-in with a Keith Haring project. The foil looks like it is hot glued on the cardboard. Students make a few gesture drawings first and then choose 1 to create the foil sculpture from.