Enable the Attendance tool through the Navigation tab in the Course Settings so that you can use it in the course. (In case you need help with the Navigation tab and Course Settings, please follow the appropriate guide linked below.) Once the tool is enabled, use the Roll Call feature within Canvas to easily track and award points for attendance. Encourage students to upload a picture to their user profile to help setup the seating chart feature, which makes it easier to take attendance.
The Roll Call feature will automatically create an assignment in Grades to record the points for Attedance. If you use Attendance as a graded item, plase be aware that in this function for now, the tool creates a single column of 100 points which it updates as you use the tool. If you are using a points calculation method for your grades, be warned that altering the attendance points is tricky and can cause some odd errors, though the change is possible if you follow the Canvas Guide faithfully.
Visit the Roll Call feature in the course by clicking on the Attendance navigation link to record student attendance. This is where you can use the CLASS tab to setup the seating chart to make taking attendance a lot easier and faster. Mark students present, late, excused, or absent.