You can access your grade book by clicking on Grades on the left-side menu of your Canvas course. Here you can see a class list with every gradable assignment in the course. You can also access student work submissions, hide/show assignment grades to students, and see how students are progressing in your course. Below are a few tips for managing your grade book.

Grade book Icons. When a student turns in an assignment, an icon will appear in that particular assignment's column in the gradebook. Each cell is color-coded based on whether the assignment was turned in on time, late, or not at all. See Using the Canvas Gradebook for a guide to the icons and coding.
Hiding grades while you are grading. If students have turned in an assignment and you want to finish grading all the assignments before all students can see them then you can hide their assigned grades temporarily, Canvas provides a Grade Posting Policy that allows you to hide the assignment grade from the students so that you can enter grade values without them becoming visible to students. When you are ready to share grades, you can manually post them.
Zeroes. When you look at your gradebook, be aware that a dash indicates that a student has yet to submit an assignment. If a student receives a zero, you must click on the corresponding dash and type the zero in manually. This will also calculate the zero in the final grade tally.
Total Column. The total column in the gradebook calculates the final student grade based on the work they have done so far (remember to swap out dashes for zeroes if you need to). At the end of the semester, this is the final calculated grade for each student that you will need to submit as their final grade.

If you would like to learn more about h ow to enter or edit grades within your gradebook, visit the Canvas Community or contact an instructional designer for assistance.