Install the overhead screen The pergola measures slightly less than 12 ft. wide x 13 ft. long, so I was able to cover the underside of the structure with one large sheet of shade fabric.

In The Overhead Projector: Don’t Overlook It (Part 1), I explained why it’s better to use a projector (be it an old-fashioned overhead or LCD) than to write on the board. Now we turn to how to ...