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 use a ...

An airline passenger brought a projector onto a plane and used it to watch a feature film on an overhead bin during a flight. Douglas Lazic-Kirk, a fellow traveler who captured cellphone video of the ...