This one is really beyond my imagination.
I am really curious about whether this kind of method is useful for teaching process.
In this approach, all the people take actions to respond to their instructors. Sometimes the class is really noisy, but the whole class can become quiet instantly according to the teachers order.
In my opinion, I think that maybe this method is useful. But, self-discipline students are the prerequisite for this class. they can express themselves well and at the same time .
I will not use such means in my class before I could use it skillfully.
