As a teacher of five hybrid sections, I’m trying to make my feedback comments friendly and focused.  These are some of the comments I’ve given  in response to their first content-based Discussion:

You have your first absence for not submitting a Discussion posting on time. Please see me so that I can help you be successful in our hybrid format.

You will earn full credit by responding to two of your classmates. Remember that your participation in Discussion is part of attendance in a hybrid course.

I like how you participated in the Discussion over several days!

Your response format really captures the K-W-L, Randy.  Here’s another strategy for your chart!

Do you have any suggestions for me?