The child is in adolescence in the first day. So in order to change the way of primary education, we can negotiate with him to play mobile phones. If we finish our homework, the mobile phone can play for an hour. Now we are in Grade One, and our focus is on study. Now the admission rate of the senior high school entrance examination is reduced, so that children can clearly understand the situation and work harder in their studies. After all, eat less bitter life in the future.