Electronic devices distract students from learning: students can play games, text, chat and cheat.
Students access inappropriate information, videos and pictures, spend hours reading and viewing and forgetting about their projects and assignments.
Students can take embarrassing pictures of others, share them on the Internet or use them to ask for money or force others to do something for them.
As a conclusion, personal electronics can do more harm than good for birthing. I suggest teachers prohibit or restrict students from using them in the classroom.