When I send home interim reports I always like to archive a copy of the report for my records. Additionally, web-based grading and reporting systems and the increasing power of dictation on the iPad make using an iPad to dictate and enter student comments into an interim report using Safari a natural pairing.
Fortunately, Workflow makes this easy for us to accomplish this in one one app and finish with two taps in Safari. The workflow asks for the students name, then asks for the text of the comment (which you can dictate if you would choose to do so), and then the date. These three components are then combined into a text field, saved to Dropbox or Evernote, and then copied to the system clipboard for you to paste into the interim/grading comments text field in your web-based grading system.
Workflow links Interim/grading period comments - Dropbox