Man, I wish I had this (and cellphones) in high school. Would have made cheating so much easier!
And got in trouble for writing programs in OPL to solve math problems.
I reckon I deserved extra credit for initiative. The experience of learning to program has certainly turned out to be ultimately more useful than learning to do math without a calculator.
(Not that I think that learning to do math without a calculator is useless, mind you.)
OPL: https://en.wikipedia.org/wiki/Open_Programming_Language
Then I dropped it on a steel deck, broke a hinge and the power lines from the battery case. Never have pulled it apart to rebuild, but it's in my closet still, 15 years later :)