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Washington teacher requires students to lock up cell phones
Teenage hangups: the drastic plans to keep high schoolers off their phones, Schools
Ohio district high schools to lock up students' phones all day after problems with staging fights, bullying, and productivity
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Uniform - Elizabeth Garrett Anderson School
Some schools have started locking up student phones – Daily Democrat
Big phones can be put down, small phones will not shake. 1 microUSB charging cable.
Universal Mobile Phone Timing Lock Box Student Self-discipline Phone Lock Case