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New York governor to launch bill banning smartphones in schools
(www.theguardian.com)
This is a most excellent place for technology news and articles.
Students phone usage in schools are problematic. It's not just in the classroom, but (raises hand) can i go to the bathroom (to use my phone). You can't lock down their at&t or t-mobile phones. Don't know how an outright ban would work but it's worth a shot. Education like democracy is in decline and in peril. Especially public education with the onslaught of charter schools.
Funny-ly enough you can block their signal. Issue is it's also going to block everyone within range
So jamming is not a practical solution.