It was the first term of high school. Our head teacher and Chinese teacher was a nice young girl. At her first lesson, she stood in front of our classroom for a while and said," I am a 'blind(失明的)'teacher.
"Impossible!" all the students were surprised and said, "How could you be a blind teacher?"
I am really a 'blind' teacher. I can't find my mistakes while teaching. So I would like you to help me find them with your bright eyes. I'm sure you can do it."
All the students listened carefully and tried to find her mistakes the whole lesson. A term later, we had got used to listening carefully to all the teachers. We learnt in this way until we finished our high school. Most students in our class went to college.
At the graduation ceremony (毕业典礼), we all took photos with her. I wrote something at the back of the photo: "You're not a 'blind' teacher. You are the wisest person in the world."