Xiao Yingying's anger was choked in her throat and her neck was thrusting, waiting for Ning Yunxi to explain such a difficult solution to the child. Anyway, she had never seen such a question.

Ning Yunxi took a pen and wrote a formula on the draft paper, which was equivalent to writing on the blackboard, while patiently speaking to the two children: "This question requires the use of letters instead."

"Letters, there are no letters in this question." Qiqi asked.

"It doesn't matter. In the end, we will find that all letters will be eliminated by each other. Using letters is just to facilitate us to list and publicize and sort out our logical ideas. In mathematics, even in advanced mathematics, mathematics masters often use this method to solve problems." Ning Yunxi said.

The two children stood there and watched her very accurately and quickly finally eliminated the letters in the calculation formula as she said. The children made a surprised voice. Then, Qiaoqiao said excitedly: "Teacher, I have another question here." After that, she looked up at her mother.

Peng Yujiao was also a little excited. Just one question was enough to make people see where Ning Yunxi's skills were. He immediately nodded to his child.

Qiaoqiao ran into the room and came out with a question book, and gave it to Ning Yunxi.

Ning Yunxi looked at the question and explained to the two children carefully: "This question is different from the question just now. It requires graphics to help us sort out our ideas and solve problems. It is the same for any question. Only by sorting out the ideas can the answer be revealed. In the end, we will find that mathematics is so wonderful."

At this time, the two children carried a small stool and sat in front of Teacher Ning, staring at the pen in the hands of Teacher Ning and Teacher Ning, and their little ears stood up and listened quietly, as if they were introduced into the wonderful world of mathematics by Teacher Ning's voice. Mathematics is really a very interesting course. Under the guidance of Teacher Ning, it turned into a kaleidoscope, which was very attractive.

Let them make a marveling sound from time to time: wow, wow, wow!

When Ning Yunxi finished the second question, the two children applauded involuntarily: "Teacher, teacher, I don't know how to do the questions, tell me."

Peng Yujiao pressed the heads of her two children and said to Ning Yunxi: "They always felt boring to learn mathematics before, but they didn't expect that they would like to learn mathematics from their teachers for the first time."

"In fact, mathematics is not boring at all. It is the first door to open the universe of nature, all worlds," Ning Yunxi said.

"Educators often tell us parents that mathematics is the most important basic subject, and it is a subject that can be communicated without language. However, we parents are at a loss and do not understand it very well, and always feel that it is too profound. When children come to ask, we parents often have difficulties. Therefore, we need teachers like Teacher Ning." Peng Yujiao said with emotion what the parents said.

Under tutoring, I teach my children to write and spell words. I can do it, and some copy it. However, if I do math problems, if I am not an educator or scientist, I will give the standard answers to parents and I will be overwhelmed.

Ning Yunxi smiled gently, it is understandable. After all, some math problems are difficult for people without this talent, and it has nothing to do with whether they are adults or not.

Xiao Yingying was left aside for some reason. When she looked up, she saw someone standing there. Xiao Yingying was shocked: "Cousin!"
Chapter completed!