The idea of this was lost on my kids, though. The first day, Henry came home and pulled the bag out of his backpack.
"Why didn't you give it to your teacher?"
"Because there was nothing in it."
Annie, on the other hand, gave her teacher the bag, but then told her she would get a gift to put in it every twelve days.
I think her teacher can figure it out, though.
So, stay tuned for the next 12 days to see their surprises!