The wind blows the dust on the road, and the people who pass by are slow, and they will say a few words to each other after meeting.

As the sun moves towards the side of the mountain, the sky becomes overcast and the temperature becomes much cooler.

In the courtyard, Zhang Jiaminus squatted on the ground excitedly, every time he encountered something happy, he couldn't sit still, Zhang Jiaminus bit the end of the brush in his mouth, and seriously thought about the math problems that Wang only gave him.

After thinking for a long time, Zhang Jiaminus circled his head and said in embarrassment, "Second Sister Wang, how should this be calculated?" ”

Wang Weiwei was thinking about other things, and Zhang Jiamin's question pulled her thoughts back from beyond the nine clouds, Wang Weiwei took a sip of tea and said, "There is a stupidest method, you can count them one by one, but it's more troublesome, anyway, there are only eighteen chickens and rabbits in total." ”

"Oh, I see." Zhang Jiaminus suddenly realized, checked a large piece of paper, drew I don't know how many rabbits and chickens, half an hour later, finally came to the final result, happily said, "There are eight rabbits, there are ten." ”

"Not bad." Wang Wei stretched his waist and said, "It only took half an hour. ”

"Second Sister Wang, this math problem is so interesting, you can give me another one." Zhang Jiaxiao said happily.

Wang Weiwei took a piece of paper full of chickens and rabbits and said, "In fact, the fun of math problems is not only this, but to make a complex problem simple, such as the problem you just did, if you draw all the rabbits and chickens, and then count them one by one, it will waste a lot of time, have you ever thought about how to calculate this problem as quickly as possible?" ”

Zhang Jiajian scratched his head and said embarrassedly, "Second Sister Wang, I'm too stupid to think of any other way, so I can only use the stupid method you taught." ”

"Have confidence in yourself, you just lack mathematical thinking, my previous teacher also told me that you need to use mathematical thinking to think about problems when doing math problems, but I don't know what mathematical thinking is, you must be better than me."

"Second Sister Wang, do you still have a teacher?" Zhang Jiaxiao was a little surprised, the highest knowledge in Shanshui Village is Mr. Zhou, but Mr. Zhou only knows some abacus, and the only teacher who can teach Wang these knowledge must be even more powerful.

"Of course, otherwise how would I have done this, but I will only tell you one person about this matter, and you can't tell anyone else."

"Don't worry, I promise not to tell anyone." Zhang plus minus patted his chest to ensure it.

"God knows, you know and I know." Wang Weiwei stretched out his finger and pulled the hook with Zhang plus minus.

……

Following

As usual, Wang Weiwei went to the school to teach, and the things he taught were very simple, he continued to let the students write numbers, and after they could write hundreds of numbers, he would teach them the symbols of addition, subtraction, multiplication and division.

"If Liu Zijun understands your mind, he will definitely be moved by you." Wang Weiwei said.

"Do you want to eat?" Yun Qing opened the food box.

"I'll just get a piece for my sister." After Wang Weiwei took a piece of pastry from the food box, he came to the courtyard and gave it to Wang Yi, Wang Yi liked the swing in the school very much, and after following Wang Weiwei to the school every day, he sat on it and shook for half an hour, and he was not too tired.

"Sister, this pastry is so delicious." Wang Yi didn't forget to suck his fingers after eating.

"Don't look at me like that, you can't eat anymore." Wang Wei found that Wang Yi was becoming more and more scheming, and always looked at her with pitiful eyes when he wanted to eat, but this kind of childlike scheming was quite cute.

Zhang Jiaxiao ran out of the classroom with a pen and paper, also had a piece of pastry in his hand, ran to Wang Yi, and said, "Sister Wang Yi, this is for you, this is given to me by Sister Yunqing, I am not willing to eat it." ”

Wang Yi didn't reach out to pick it up, but turned his head to look at Wang Weiwei, waiting for her permission, Wang Weiwei nodded, Wang Yi happily took the pastry and ate it, Wang Weiwei and Zhang Jiaminus sat on the stone steps, Wang Weiwei took the paper and pen, wrote a plus and minus sign on the paper, and said, "This is a plus, this is a minus." ”

"Plus, minus." Zhang Jiaminus read it silently in his heart, nodded seriously, and said, "Remember." ”

"This is an equal sign."

"Equal sign."

"How do you usually say the sum of two numbers?" Wang Wei asked rhetorically.

"A chicken plus a duck equals a rabbit." Zhang Jiaminus thought for a while and said.

"Yes." Wang Weiwei nodded, wrote one plus one equals two on the paper, and said, "This is the most basic equation. ”

Zhang Jiaxiao nodded as if he didn't understand, and Wang Weiwei said with a smile, "It's okay, you take it back and think slowly." ”

Yun Qing was carrying a food box at the moment, and walked out of Liu Zijun's room, Wang Weiwei stepped forward to stop her, observed left and right, and said cautiously, "This afternoon, by the river in the east of the village, there is a surprise. ”

"What do you mean?" Yun Qing asked suspiciously.

"You'll find out when you come." After Wang Weiwei finished speaking, he winked at Yun Qing.

Returning to the original stone steps, Wang Wei took a piece of paper from Zhang Jiaminus, and wrote that in the afternoon, by the river in the east of the village, he would not be separated, and after writing, he rolled the paper into a paper ball and threw it into Liu Zijun's house, and then pulled Wang Yi out of the school.

In the afternoon, Li Changsheng came to Wang Weiwei with a square cloth according to yesterday's agreement, Wang Weiwei and the three of them went out of the village and came to a forest, Wang Weiwei and Li Changsheng picked a lot of flowers in the woods, and the most three of them sat in a pile and picked off the petals on the flowers one by one.

Li Changsheng picked it up and asked suspiciously, "Second Sister Wang, what is this for?" ”

"You'll find out in a moment." This is the only thing Wang learned in the TV series, the magic weapon of wasting dating, as long as Liu Zijun and Yun Qing are made on a romantic date arranged by her, Liu Zijun will never bother her again in the future.

Soon, the square cloth was filled with many fans' petals, Wang Weiwei and Li Changsheng pulled these petals to the river, the people who were waiting for had not yet arrived, Wang Weiwei had just picked a lot of wild fruits in the woods, surrounded a circle with stones, picked up some firewood, made a bunch of work, skewered the wild fruits with wooden sticks, and roasted them on the fire to eat.

"Second Sister Wang, can this fruit still be roasted and eaten?" Li Changsheng swallowed his saliva, although he was very greedy, but such a strange way of eating, Li Changsheng was also the first time to see it.

"This is what I saw in the wild, whether it is wild fruit or game, there will be insects, so it is safer to eat it when it is roasted." The king only relied on the wild fruit very seriously.

"I remember the wild fruit we ate last time didn't seem to be roasted." Li Changsheng said recalled.

"I forgot last time, don't you have time now, don't worry, it must taste good." After Wang Wei finished speaking, he turned his head to look at Wang Yi on the side, isn't there a free taster.