Send Feedback to Google or Suggest a Feature
If you have feedback to offer Google, or have a suggestion for a new feature, please hit the question mark in the lower left corner of the Classroom screen and offer it to Google. Since they launched Classroom for September, 2014, there have been a great many changes made to the application, and these suggestions clearly come from teachers.
Remember, it is software engineers who created this, not educators. They rely on the feedback from educators to know what to change/adjust/add. They do listen!