To conclude, it would be a very bad idea to allow phone usage in classrooms to continue.
Not only does the constant task-switching negatively influence academic success, it also creates a situation of conflict in the classroom that impacts the working environment. What is more, phones can illustrate wealth inequality amongst students which could result in bullying.
It may be difficult to get used to not being permanently glued to a screen, but a ban on phones in class is the only way forward for academic success.
claim - key point 1 - key point 2 - refutation of the counter claim - closing statement