Bluemagic, your post is almost identical to the one I've been debating putting up here.
DS ended his freshman year in a grade abyss. His freshman and sophomore honors classes do not have "busywork"; the assignments have clear purpose. He just didn't do them or turn them in. I can't fault the teachers on their grading at all. I am very grateful to the teachers who contacted me to get final work in and make final presentations. I'm grateful to the ones who let him take the brunt of his own actions, including failing to show up for one-on-one conferences, yet also angry that they didn't contact me.
When grades arrived, the faculty was already gone for the summer. I have sent emails to all of them, hoping they will check email over the summer. (I did have a conversation with one before he left) Mainly I want to plan a management system with and for DS, and me, for next year. I told DS last year I wasn't going to be checking the online grade book, but I did remind him to check himself. That is one thing that will change.
He is registered for two APs next year. While I fully expect the school to keep him in honors classes, the APs are another story. I don't know what they will do with that. He has the summer materials, and will start work on them when he gets home from camp. If they give us grief about it, I hope his showing commitment already will help.
Bluemagic, do you have plans for managing and keeping up with the homework status?