Grading Online Quizzes Created by Google Docs Automatically

For teachers, grading quiz results for paper test manually is definitely a hard job. Google Docs provides a good way for teachers to create online quizzes or surveys for teaching and learning, you can view the posts about creating quizzes and sharing quizzes with Google Docs. But teachers, do you know how to grade the quizzes automatically? If you don't know, this tutorial about how to grade the quizzes automatically will give you the details.