I have been requiring my students to do publisher's activities to reinforce the reading assignments in a intro level course. They do two a week and honestly - it seems like a lot. I would like to assign two a week for a total of 320 points but only require that they get 250 total points for this category. That would allow them the freedom to pick and choose a few that they are interested in (or have a bad day here and there where they don't do as well).
I thought about just eliminating the lowest 5 submissions, etc, but that doesn't allow them to get cumulative credit for partial points on a few different assignments.
This would be the only column in my course treated this way. Others require all assignments to be completed.
Is there a way to do this? Am I missing the obvious? Thanks!