Social media is very common to teenagers. Teenagers use social media very often. It’s useful and convenient for teenagers to communicate with each other. Teenagers also use social media to do homework, but the question is, “Will teenagers spent so many times on using social media?” If teenagers spend less time on using social media, maybe there’s some extra time to do their other hobby. Social media is good for learning information together, but it’s also an interference when teenagers are working on their works. It will let the teenagers get off-tasks easily. Teenagers should make the right time and choices on using social media. Social media can be a good friend when you are studying, but also it can be a bad friend when it let you off-tasks while you are working, so choice the right decisions.