The correct way to open the elf

Chapter 47: Teacher Feng's Mathematics Class
What bothered Feng Yu was the lack of cheap paper and pen, so he could only think of a crooked trick. He used a porcelain kiln to burn a batch of porcelain plates that were one meter long and half a meter wide. The surface of these unglazed porcelain plates was slightly rough, so he used charcoal to paint them into small blackboards.

As he painted, he complained about the elves, saying that they were still so poor after all these years. One or two thousand years after China was founded, there were one prosperous dynasty after another.

It seems that the living environment of living things really cannot be too favorable. It is because the living conditions of the black uncles are too good. They lie under trees all day long, waiting for fruits to hit their heads, and enjoy drying birds. They have not made a name for themselves until now.

This is even more true for the elves, who have a civilization history of more than ten thousand years, but have ended up in such an embarrassing situation.

Feng Yu, as a person from another continent, had a close relationship with Nicole, and his lectures caused quite a stir in a small circle.

Anthony only found thirteen students as promised for Feng Yu, but there were quite a lot of people watching his first class. Even Nicole didn't meditate and practice, but stood next to Anthony waiting for Feng Yu to give the lecture.

Not only did Alan and Dick come, Feng Yu also found the elf magician who had alchemy as his secondary job at the scene, which made him more enthusiastic about teaching.

It's time to show some real technology.

He had originally planned to teach students Arabic numerals as the basis in the first class today, but seeing so many people coming to watch, he knew he had to shock them with some solid stuff today and lay a foundation for his next action.

At the very least, he had to narrow the IQ gap with these self-righteous people, so that they wouldn't think too highly of themselves and look at Feng Yu as if he were a visitor from a barbaric world.

Feng Yu attended Nicole's magic class twice and then stopped going. He found that the way the magicians in the camp looked at him changed. Even though he had invented salt, they were just curious instead of admiring him, which made Feng Yu extremely unhappy.

You are all so arrogant, those who study magic don't know the nature of elements, those who study alchemy don't know the laws of chemistry, and those who study herbal medicine don't even understand plants. Who gave you the courage to show off to the time traveler? !
Feng Yu fired a two-meter-long blackboard himself, as his kiln was that big.

He glanced at the people around him and wrote a set of elven words on the blackboard with long strips of limestone: mathematics.

Feng Yu clapped his hands, and the onlookers gradually quieted down.

"If you have any questions about what I said, please raise your right hand and ask for my permission before asking. This is a sign of respect for the teacher and a reflection of personal cultivation."

After Feng Yu finished speaking, the whispered conversation stopped. He glanced at Nicole who was holding Anthony's arm, and stood beside the blackboard to start the first science enlightenment class for humans in the high magic world.

"There are huge differences between the cultures of Green Continent and my hometown, and the biggest difference is the emphasis. I once looked at the collection of books in the tent of Grand Mage Anthony. I have to say that the literature of Green Continent is very well developed, and I have seen many great literary works.

These great writers wrote passionately, one work after another that can be called immortal.

So today I won’t talk about literature, but something we are researching over there, which is the two words I wrote - mathematics.

Students may ask, what is there to say about mathematics? Who doesn’t know mathematics? Even the dumbest person can calculate the three meals a day correctly, right? ! "

Several of the elf boys couldn't help but laugh in front of the Grand Mage Anthony, including Nicole, but they quickly stopped laughing.

"That's right, who doesn't know math?! But the question can be turned around, who doesn't know literature? We can't write immortal poems, but it shouldn't be difficult to record what we say and do every day, right?!
Some people would say that is not literature.

I would also like to say that counting how many meals you have eaten every day and how many bowls you have eaten at each meal is not math. It is the same as recording what you said every day.

Literature has immortal poems, but what does mathematics have?

As everyone knows, I brought the way of making salt from my hometown to our camp. Chief Allen and Chief Dick are working hard to build more salt fields, and strive to make every family in the camp no longer have to worry about eating salt. "

Alan and Dick stood in the crowd, holding their heads high with pride.

Feng Yu continued, "I told Chief Dick that by building salt pans according to the size I designated, everyone in the three tribes of elves, dwarves, and halflings can have access to salt.

So how did I calculate that?"

Feng Yu wrote a series of numbers on the blackboard, and then said: "The amount of salt each of us eats each year is limited and stable, which lays a foundation for calculation.

Then, based on the total population of the three tribes, we know the total amount of salt needed by all the people of the three tribes each year, and the same is true for the output of each salt field.

In this way, we can calculate how big the salt pan is needed to meet the salt needs of all the people of the three tribes.”

Feng Yu wrote all the symbols on the blackboard and finally came up with a number. He then pointed at the number and said, "After calculation, it only takes a salt field about five miles long and wide to do it."

The people watching were all important figures in the camp. When they heard this number, they became excited and started discussing it.

Anthony patted Nicole's hand calmly. Nicole glanced at her grandfather and raised her little hand prettily.

Feng Yu glanced at her and said, "Nicole, do you have anything to ask?"

"Darren, how did you come up with that number?"

"I calculated it through numbers. It's very simple, but it needs some data support. For example, each person needs about 5 kilograms of salt consumption per year, and the amount of salt that can be produced per mu of salt field per year. As long as you know these, the number can be easily calculated.

If you still don’t understand something, you are welcome to continue listening to my class. In future courses, I will slowly teach you more advanced ways to apply mathematics.

In order to help everyone better appreciate the magic of mathematics, I am now going to play a small game with you. Students and everyone can participate.

Everyone knows the stick rice that the halfling brothers use to make flour. The food made from stick rice flour is delicious. Thanks to the great halfling brothers. "

Feng Yu patted his left shoulder, saluted Allen, and then continued:

My little game is this:

If I take out 300 catties of salt to exchange for grains of rice, you only need to pay me one grain of rice for the first 10 catties of salt, two grains of rice for the second 10 catties of salt, four grains for the third 10 catties of salt, eight grains for the fourth 10 catties of salt, and sixteen grains for the fifth 10 catties of salt.

(End of this chapter)