Today the Google Classroom team announced that Google Forms is now integrated with Google Classroom. You can attach a From to an assignment using the Google Drive icon. Students will be sent to the live form. When students submit the form, the assignment will automatically be marked as done. Teachers get a side link in the assignment to the Responses Sheet for easy access.
This feature was highly requested from teachers like you. If you have a feature request, click the question mark ? in the bottom corner of Google Classroom and send it as feedback.
Thanks for using Google Classroom.
The Classroom Experts Team