They are a necessary thing for teenagers. Teenagers live in a time where the world is transitioning from traditional to digital. Having a phone is like having an mp3 player, camera, computer, alarm, and house phone all-in-one. Having a cell phone defeats the need for these things, in the long run, is very multifunctional. On top of this, phones give teenagers a safety net. So long as they have a charged phone, they will never be stranded. They'll never have to miss an after-school activity because they couldn't arrange a way to get home in time. With a cell phone, teenagers can keep in touch with their parents every step of the way, in a matter of seconds. Cell phones allow help with homework and school, a way to maintain relationships with friends and long-distance relatives, etc.

The development of technology brings a lot of useful things to people. And mobile phones are one of the indispensable widgets for anyone. However, the students overuse the phone too much, or use the phone for the wrong purpose gives parents and teachers many concerns.Mobile phones are one of the great technological advances that humanity has inherited. Most people now have at least one phone for personal communication and business. In addition to the "old brick" phones with the function to listen and call, there are also many phone companies with high functions such as filming, taking pictures, connecting to the Internet .... The price of each of these phones is also extremely cheap, only about 2-3 million VND.or you even don't even want to go to school because of shame.Using a smartphone has its two sides. Besides the positive it brings, it is also the severe consequences that make society sting. Smart phones are often connected to the internet, so students instead of their academic duties will spend their time online chatting online, playing online games and even accessing pornography. seriously affecting school culture.So what to do to limit this situation? Currently, the school also offers some deterrent measures such as banning students from using phones in the classroom. However, this fact is extremely difficult. Instead of banning schools, teachers should find ways to teach children how to use mobile phones properly and reasonably. Absolutely not used for the purpose of mocking and insulting each other with hot clips, images of depraved violence .... Students themselves