You can submit a review on school through review section or in right sidebar you will find a box like Rate and Review. To upload paper, just go to papers/worksheet section or school download section. There is a button of Upload Papers/Worksheet (http://prntscr.com/k7xclf) to upload papers/workseets. You can select multiple files while uploading papers. Please remember papers must not contain any copyright/watermark or logo of any other company, otherwise your paper would be rejected.
Answers
Abhishek