Third graders at Columbia University's elementary school may never know the painful sound of fingernails scratching on a chalkboard. That's because the dust-covered board that normally would be the focus of their classroom has been replaced by a giant, touch-sensitive computer screen.
All across the country, chalkboards are being ditched in favor of interactive, computer-driven whiteboards that allow students and teachers to share assignments, surf the web and edit video using their fingers as pens."It is a must-have technology," said Shawn Mishler, director of communications technology at Columbia's privately run elementary school. "My dream school would have 7-foot-diagonal, in-wall units in every classroom. That, however, requires a lot of in-wall space, which is not practical in Manhattan."
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