The three scales
If you don’t set a scale when creating a group, Cohort defaults to Points out of 10. See add a group.
Changing the scale later
Open the group, select Grading scale from the Group actions menu, choose a different Scale type, and save. Switching never changes marks a teacher already entered — each one keeps the scale it was marked under. If the group already has marks, Cohort tells you how many earlier scales it’s keeping, so the group’s full history stays readable even after a switch.By default, owners and admins can change a group’s scale at any time. Managers can only choose it while creating a new group.