Abstract
You gave the information to the students orally, put it on the web, in the system, on a bulletin board, on a piece of paper, in a notebook, and still "again" half the parents did not know and the students did not bring what they had... You may be wondering: "What now? Should I stick it on my forehead? "The solution is a well-set way of communicating with parents at the beginning of the school year.
Then you only need to follow it with a little discipline.