Left and right-let the children who don't understand write on the palm or back of their hands, write the word "left" on the heart or back of their left hand, and write the word "right" on the heart or back of their right hand. This emphasizes their feelings. Up and down-playing games, when the teacher says up, the students look up. When the teacher said "put it down", the students all bowed their heads. Do it every day, and you will remember it when you are skilled.