The teaching art is an opening study entertains feelings the door leaf the key, it may be superb, melts for is mediocrely mysterious, causes the student with ease happily study , study to understand.

• 教学艺术是一把打开学生心扉的钥匙,它可以出神入化,化平庸为神奇,使学生轻松愉快地学会、学懂。