Sounds a lot like my 12yo.
It is very hard for a parent to stay on top of these things. Our school is not 100% online yet, maybe 50% if that. But our 12yo with executive function deficits has issues with writing assignments down, and understanding what the assignment is actually asking. He is very literal, and too often the written assignment is unclear (even to us parents).
In his IEP, we have an sped person check each day that all his assignments are written down properly. We also have reduced workload for some classes because he takes forever getting things done. We've found that teachers resist reduced workload even when it is in the IEP, and you have to stay on them about it.
Also, he is prone to anxiety, so there are certain assignments that he doesn't want to talk about. That makes things complicated.
One thing that we have been trying is to sit down with him and make a homework chart each day after school. We go through his assignments and online materials to make sure we know what needs to be done. He doesn't have to start on it right away but once we know what we're dealing with we can plan the rest of the day.
