Direct Observation: Draw a cross hatched drawing of a desk, table or favorite area of your home* and its surrounding area using two point perspective. Your drawing must include a corner of the room done with appropriate two point perspective.
Use a black uniball pen or black gel pen on white paper.
Make the room appear dimly lit. I suggest to use one light on the desk being the only light source
http://www.npr.org/player/embed/4768811/4769037
Work no larger than A4!!
This will take several hours. Cross hatch can be very time consuming. Allow plenty of time for this assignment.
*The area must have some rectilinear furniture.
Advanced options: Add more furniture into the space at different angles with different vanishing points.