Music teachers can keep students, families, and the wider school community informed by creating engaging posts.

SAN FRANCISCO — In California, a high school teacher complains that students watch Netflix on their phones during class. In Maryland, a chemistry teacher says students use gambling apps to place bets ...

Last week, in a humanities class at a highly selective university in the Northeast, a student played The New York Times’ Spelling Bee game on a phone, according to another student who sat within view.

With notifications distracting students during class time, fights spilling over from social media into the hallways, and students at lunch buried in their phones rather than in conversation with each ...