Kansas Schools Now Collect Phones at the Door – Spends $180K On Smartphone Lockers
(www.gadgetreview.com)
I remember witnessing a) happen more than once, and they ended up in the principal's office. As for b), the teacher shouldn't be getting physical, that's not their job. If a student is being insubordinate in any way, there are already mechanisms in place to deal with it. This is nothing new.