Chapter 79 (1/2)
”OK, now that we all understand this question, let's go to question 5.”
Cheng Nuo's eyes in the class around a week, light smile said.
”Come on, students who are right in question 5, please raise your little hands!”
More than 30 people in the class raised their hands reluctantly.
”Well, Jiang Qingqing, since you have done the right thing, let's talk about your solution steps.”
…………
After a few questions, Cheng Nuo completely repeated the previous steps.
First ask the right person to raise their hands, and then choose one of them to talk about the steps. And then very kind to ask if there is not understood.
If there is one? Good! After class directly find the topic of the students to ask once on the line!
The mood of the whole class now is really lying trough!
Your sister, Lao Tang asked you to replace the class so that you could give us a lecture.
But you're good! Except let's raise our hands and call the roll. It's nothing. The topic is amazing. We did it all!
You say, we want you to be a substitute teacher, what's the use!!
What did you say before? If you can do it, you can't, don't beep!
Can really according to Cheng Nuo this play method, say a word of truth, I really can go up!
In a burst of complaints from the whole class. Cheng Nuo got to the last question.
”Come on, raise your hand if you are right in question 21.” Cheng Nuo asked.
Silence No one raised their hands.
But it's really not the whole class who is deliberately against Cheng Nuo. It's really No one is right!
To be exact, except Cheng Nuo, there are 50 students in the class, and no one else has done the last question completely.
Looking at the scene in front of no one to raise his hand, Cheng Nuo is indeed some wax.
So he looked at Mu Leng and said, ”Muran, you...”
”Don't look at me. I didn't do it right.” Mu Leng turned his eyes and didn't give Cheng Nuo face at all.
Cheng Nuo is stunned, and the air is filled with a faint atmosphere of embarrassment.
”Cough.” Cheng Nuo coughed a few times and walked up to the platform. With a long sigh, ”Oh. There's no way. I wanted to hide it, but in the end, I still need to show up! ”
”Students, please open your eyes, do not blink, to see how I can easily solve this problem in a few steps.” Cheng Nuo picked up a piece of chalk and said.
The students were speechless for a while, but they were also very curious whether Cheng Nuo could explain the problem clearly.
It's not a skill to do it. It's the ability to make it clear to someone who can't!
The last one is about elliptic functions. The title is not difficult in all the final questions, but it is not simple. It is even more difficult to do the right thing.
Cheng Nuo lists the graphs and known conditions on the blackboard. Then I found an open space on the blackboard. I wrote on the blackboard and explained it to the students.
”The first question is very simple. Let's ask the elliptic equation. Let's see what is known and what is unknown in the elliptic formula, and then...”
Well, in just two or three minutes, Cheng Nuo explained this problem clearly. Under the platform, the students also nodded secretly, indicating that they had understood.
But unexpectedly, Cheng Nuo threw away the chalk which only had a head, picked up a new one from the chalk box, turned around and wrote a big ”two” on the blackboard!
”Now, let me tell you about the second solution to this problem.”
No The second solution!
After listening to Cheng Nuo's words, the students can't help but grow up with astonished mouths.
There's a second solution?!