This sounds pretty neat. Nice opportunity but how long do you have for the actual conference? Our P/T conferences are scheduled and only allowed 15 minutes for each child. There's a pretty tight schedule. That's why we asked for a separate meeting to go over this stuff. Choosing to skip the usual conferences this year at our school! I hope it is a nice time for your GS to present his side of school so that the teacher "gets it."
Best of luck for great meeting!