The SpeedGrader tool allows instructors to quickly view, give comments and grade assignment submissions. There are several ways that you can access the SpeedGrader:
To Do list
Click on the assignment that needs to be graded, this will take you directly to the SpeedGrader.
Select the SpeedGrader option from the drop menu for any assignment in the gradebook.
Assignment, Quiz, or Graded Discussion
For Assignments and Quizzes, click on the Assignment or Quizzes tab on left-side navigation in Canvas. Locate the Assignment or Quiz you would like to use SpeedGrader on. Once you are on the Assignment or Quiz, you will see an option to use SpeedGrader located on upper right-hand side of the screen
For Graded Discussions, click on Discussion tab on the left-side of the navigation. Locate the graded Discussion you would like to use Speedgrader on. Once you are on the graded Discussion, you will see an option to use Speedgrader by clicking on the Settings  icon located on the upper right-hand side of the screen and selecting  SpeedGrader.
How to use SpeedGrader
The SpeedGrader screen is divided into several sections. The primary focus is the  document that was submitted by the user, such as files with .doc, .docx, .ppt, .pptx and .pdf extensions and the rest being the  SpeedGrader tools.
In the section located on upper left-hand side of the screen you can go through the user’s submissions using the  arrows located next to the student name, or you can also use the  drop down menu. You can  download the submission, enter  comments or use the  zoom in and out tools.
On the top right-hand corner you have the options to Mute the Assignment
or change the way users are sorted and/or hide student names by clicking on Settings.
Grading with SpeedGrader
You can grade the user’s submissions two ways using the SpeedGrader. Under the Assessment section you can  grade the submission manually or by using a  rubric.
Also, located on the top left of the submission is a Comment section, where you can enter comments six different ways and use the drawing, highlighting or strikeout tools for your comments.
Attaching a File
There is also an option for you to  attach a files, for example a .doc or .pdf files or  record a voice or video response. This is located to the left of the Submit Comment button.