The Disturbing Reason This 20-Year-Old Calculator Is Still on Every Student's Desk

This year, high school juniors and seniors will buy a $100 calculator that's older than they are. You remember the TI-83: the brick-sized graphing machine you likely covered in stickers and used to send messages, spell out obscenities, play games and maybe do some math, if you were paying close enough attention. Some students today will be the second generation to use it.
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