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 ...
Projectors have come a long way over the past 20 or 30 years. After spending the first decade of my teaching career using overhead projectors, I do not miss having my fingers covered in red, green, ...
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