Sometimes, in-class assessments make more sense than accepting work online (e.g. you can monitor student access to textbooks, smartphones, or notes). But remember that students might...

lose papers, leaving them without a copy of the grade and feedback
be absent and miss their grade/feedback entirely
fail to see how this single grade ties in to the overall course grade

The solution? Use Canvas to report grades even if you aren't accepting anything online. If you create an assignment shell creates in Canvas, it creates a column in your gradebook. Entering grades will notify students of grades & feedback, and helps them monitor their course average.

Creating a Gradebook Column for Offline Assignments

To create a gradebook column for in-class assessments...

Click on Assignments in course navigation
Click the + button in the appropriate assignment group
Choose the Assignment option
Name your Assignment
Set a due date (optional)
Enter the number of points the assignment is worth
Click Save & Publish to add a column to enter grades in your gradebook
Click on Grades in course navigation to access your gradebook
Click on one of the cells in the new gradebook column and type in grades

To learn more, visit How do I create an assignment shell in an assignment group? or watch this short video:

To learn more about creating assignments, visit Creating Individual Assignments.