flashback

many students always forget the English subjects which they learn before (last day). its factor is they had not received all of them yet. after they go home from school. and they decide to learn them at home, they get difficult things that they learn by themselves. so before the the teacher begins his or her lesson, he must stimulate it to make them memorizing it last day.
we call it "flashback lesson" the teacher can use it with different ways such as he can use games, debating. etc it's hoped that they are not bored and they can memorize last lesson well, so they can be happy in learning English. after that he can continue his lesson without the burden. the learning is successful.