I had glimpsed this story on a couple of sites last week but never followed the link. It seems kids are using a high frequency ringtone to signal incoming text messages in class (how pervasive this is, who knows). Well I’m proud to announce that at 41 years old (for another month and a half) I am one teacher who would be able to hear the ringtone! It seems that people over 40 shouldn’t be able to hear this. How old are you and do you pass the test?
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