I used pen and paper and i turned out just good.
Obviously not, as you should have turned out "well", not good.
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You live and learn. Nowadays if I want students to do something web-based I use the chromebook cart. Cheap, easy, and I can monitor as they have to put the chromebooks on the desk and I can walk around and make sure they're actually doing their work.
And there's no chance that anyone would want to take one home or fight over them...
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When you really look, what's the difference between the iPad 2 and iPad 6 other than hardware guts, iOS version, and a fingerprint reader?
The user experience. I can hold my iPad Air indefinitely and the iPad 2 for about 15 minutes before my wrists hurt. When I hold the iPad Air, it feels better in my hands than the iPad2. I can one hand the Air and use the other hand freely for input, on the iPad2, it was a bit of a stretch to one hand it and have complete control over the other hand.
Stop looking at the hardware and start looking at the person using it and THEIR experience.