The day's gone! (Practicing "days of the week")

Every time I have to present the days of the week, I make use of this very simple activity. The first thing you have to do is to write all the days of the week on the board and then start practicing with your students. So you can point to each of the days, in order, and they read them out loud. After doing that several times, the instructor chooses a day and erases it. Then, the students are supposed to keep reading all the days of the week, including that one which has been erased. Next time, teacher erases another one and so on. This is a very challenging exercise for the students because they struggle not to forget the days that are gone. Really cool! No preparation needed! Great!