Writing prompt: Should Students Be Allowed to Use Cellphones at School?

Student essay:
Nowadays, cellphones are becoming more and more popular in the middle school. Whether students can take cellphones to school, different people have different opinions about this question.
Someone agrees with that students should be allowed to use cellphones in classrooms. They think cellphones have many useful tools such as recordings, videos and also dictionaries. Students can use them in class that can take notes easily. Besides someone thinks students will easily get contact with their parents if they are under a lot of pressure.
As each coin has two sides. Someone thinks it does harm to students if they use cellphones in classrooms.They believed classrooms are place where students study. If students take cellphones to classrooms they manage to study. If cellphones ring on the class which will affect the teacher and classmates.
There is no denying that the cellphones may do harm to us sometimes, but in my opinion, only if we use cellphones at a proper time and a proper place then can we make the phone bring more benefits to ourselves.

Corrected essay:
Nowadays, cellphones are becoming more and more popular in middle schools. Whether students can take cellphones to school, different people have different opinions about this question.
Someone agrees that students should be allowed to use cellphones in classrooms. They think cellphones have many useful tools such as recording apps, videos and also dictionaries. Students can use mobile phones that allow them to take notes easily in class. Besides, someone thinks students can easily get in contact with their parents if they are under a lot of pressure.
As each coin has two sides, someone thinks it does harm to students if they use cellphones in classrooms. They believe classrooms are places where students study. If students take cellphones to classrooms, they may fail to manage to study. If cellphones ring in class, it will affect the teacher and classmates.
There is no denying that the cellphones may do harm to us sometimes, but in my opinion, only if we use cellphones at a proper time and in a proper place then can we make the phone bring more benefits to ourselves.