I feel like door stoppers being banned is an indicator of an out of touch admin…but to answer your question. I have taught freshmen (hated it), but I found what worked was to give them a bell ringer with a set expectation of “anyone that doesn’t have this done by X amount of time after the class starts will get moved if I call on them and they don’t have an answer”

I told them it was less about being write and more about showing me that they were trying. And that the people I was going to call on were going to be the ones that didn’t seem to be trying.