Digital Whiteboards Outsell Traditional Chalkboards
On a
sunny November morning, standing under a sign that says "No Whining,"
teacher Mike Lenowitz looks intently at his first-period trigonometry
class at Thomas A. Edison High School here and talks math. He scribbles
on a digital whiteboard—cosine, hypotenuse, the Y-axis—his
inkless marker squeaking against the smooth surface.
When he runs out of writing space, instead of erasing the board, he
taps it gently with a finger. The board instantly erases itself, and
his notes are saved, reappearing in miniature on the right side of the
screen.
To solve an equation, his students pull out calculators from their backpacks. Instead of following suit, Mr. Lenowitz touches the whiteboard screen lightly, his fingers acting like a computer mouse, and up pops a two-dimensional, 3-foot,...
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