Writing prompt: My Favorite Place at School

Student essay:
There are many places at the school,such as library,art room,computer room,but my favourite place is our playground.
My school playground is big and beautiful,I often with classmate play basketball on the playground. After lunch,Lots of students play basketball,play football or do running and kicking shuttlecock. When I feel tired and unhappy, it is the best place to go to. After school, I spend one hour playing basketball. In PE lessons,we do running. Running makes us stronger.
So my favourite place is our playground.

Corrected essay:
There are many places at the school, such as the library, art rooms and computer rooms, but my favourite place is our playground.
My school's playground is big and beautiful. I often play basketball with classmates on the playground. After lunch, lots of students play basketball, play football, run and kick shuttlecock. When I feel tired and unhappy, it is the best place to go. After school, I spend one hour playing basketball. In PE lessons, we run. Running makes us stronger.
So my favourite place is our playground.