If your school wants to select only specific reports for all staff members to have access to creating, the Admin Manage Reports page is where you can set those permissions.
On the admin Settings page, go to the General Settings box. Select 'Manage Reports.' This will give you a list of available reports, with the report name, description, and then a box 'Admin only' that, if checked, will make these reports accessible only to admins.
Whichever reports your school had decided are admin only, not to be accessed by all staff, check the admin only box for those reports. To make them accessible to all staff again, just un-check the box. Changes will be updated automatically.