There needs to be an easier method for Teachers to pull an email list for all parents of children in a particular grade level, since it is often advised that teachers not have access to Pushpages/Lists. A potential workaround would be to create a Community Group with Roster access only, but there are issues that arise with duplicate notifications between My Groups/My Child's Groups. One possible solution for this would be to allow Directory users to export a list of email addresses (similar to how the Student List works, but a little more user-friendly).