This year my district bribed us with $3000 to implement a "flex" period in our daily schedule. It's a 30-minute time that we can use to help students catch up/make up assignments, to help fill in the gaps of "learning loss", or to help work with students on social-emotional things.
I've tried a week of the social-emotional, and in a couple classes I can keep it up, but as I wrote here and here, my top university-bound students are in a world of mathematical hurt. Too many of them are not adequately prepared for the course they're enrolled in.
I can keep with the social-emotional stuff, or I can try to fill in the gaps. I made the decision today in those top classes, and today we "reviewed" factoring polynomials. We'll spend several "flex" periods doing so.
Then, perhaps we'll move on to logarithms--unless I find a more immediate need.
Update, 9/6/21: I'm told that perhaps within a week, one of my Financial Math classes will be moved to another teacher as part of a big shuffle and I'll get a brand new statistics class.
We've already completed Chapter 1 in statistics and are well into Chapter 2. We only complete five chapters in the first semester.
I guess this new statistics class will have to get caught up somehow, and "flex" is the time to do that.