Using GradeA you can also take attendance for your class if you
want. On the Course Settings tab, check the list of Attendance
Statuses on the right side.

If you have a GradeA file created with version 1 of GradeA you will
need to add your statuses. GradeA files created with version 2.0 and
higher of GradeA start with the statuses Present, Absent, Late, and
Excused.

The first status in list is the initial status assigned to each
student when you add a new date. You can drag and drop to re-order the
statuses.

Press the Add Status button to add a new status. You can select
statuses and press the Delete Statuses button to delete them. 

The three checkboxes In Attendance, Penalty, and Email Missing have
the same meaning as they do in my iOS Attendance app. For GradeA, only
the In Attendance box is needed but the other check boxes are there
for compatibility with the iOS Attendance app.

You should check the In Attendance box for statuses that indicate the
student is in attendance that day. The total of statuses with the In
Attendance check box is used to calculate the number of students in
the room in case you want to match it with a head count.

Switch to the Take Attendance tab. Specify the date and time and press
the Add Date button. Select the first student in the list. Press the
space bar to see the list of statuses and press the up and down arrows
to select the appropriate status for that student and then press the
space bar again, followed by the down arrow to move to the next
student.

You can also use the mouse to select statuses.