The students were busy again, and the whole classroom was empty again, well, and Mr. Baiwei who had quietly arrived again at some point.

Song Huanxi smiled with him, took out a pen and paper, and wrote a new serial-

She has a hunch that the promotion period of the new film will not be too long, and the training class will soon resume normal learning, and at that time, she will not have a lot of free time to write.

So now every second is not to be wasted.

Song Huanxi was already thinking about the plot in his mind when he was washing, eating, taking the bus, and other chores, and he had already made a draft.

Picking up the pen, without half a minute of delay, she wrote directly:

…… Cuong's home is dark and small, and he lives with his mother and siblings, which is not suitable for studying.

For some reason, it was inconvenient for He Jiao to lead Ah Qiang to her house.

In the end, the two simply made an appointment in the park near Cuong's house.

Cuong hurried up and finished work two hours earlier than usual, and went straight to the park without going home.

The two of them sat down on the bench, and Ah Qiang hesitated: "Teacher He, there is no need to buy and sell things on the boat, otherwise, let's not learn this math, right?!" ”

He Jiao was stunned, was silent for a moment, and said softly: "Last time, you said that you wanted to be a third mate?" As far as I know, the third mate is not only able to speak English, but also needs knowledge of navigation. ”

"In the middle of the ocean, how do you determine the position of your ship? How can I get to my destination? What is the speed of the boat, what speed is downwind, and what speed is upwind? How long does it take to get to your destination? ”

A series of questions, Ah Qiang was speechless, He Jiaoxi obviously used all Chinese, but he couldn't answer a word.

He Jiao smiled slightly: "Actually, these are all knowledge of physics and geography, but-"

"Mathematics is the foundation of everything, so we still have to start with mathematics. ”

Cuong was dumbfounded by education, touched his nose and obediently accepted his fate, and honestly learned mathematics.

Teacher He knew that his foundation was weak, so he started with the simplest application problem: "A boat, the speed of the ship is 50 nautical miles an hour, and it is now 350 nautical miles away from the port city, ask, how long can this boat reach the port city?" ”

The question was simple, and Cuong quickly gave the answer: "Seven hours!" ”

Teacher He praised him, took out a handful of folded multicolored stars, and asked him to choose one.

Ah Qiang chose one casually, it was a small blue star, Teacher He motioned him to open it, and when he opened it was a slender note, on which only one sentence was written: I studied hard today, Teacher He, please eat ice cream for me!

Ah Qiang was stunned for a moment, and looked at He Jiao suspiciously: "Teacher, what is this?" ”

He Jiao pinned a strand of hair behind her ear and chuckled: "This is a reward for you, you can cash it out at any time!" ”

Ah Qiang blinked, carefully folded the note into a star again, held it in his palm, and looked serious and focused: "Go on!" ”

He Jiao smiled dumbly, "Okay! ”

……

Cai Tong, who had been watching quietly, couldn't help but praise loudly: "Wonderful! ”

He said sincerely: "The setting of this little star is very interesting! ”

Song Huanxi hehe, she actually got inspiration from Wen Zai, she thinks the interactive bonus setting between Wen Tsai and Miss Ren is very interesting.

However, if you get it in the book, it will be a little thin, so she changed the prize to a random little star, and the content of the prize written in the star is also different.

Cai Tong coughed lightly and motioned for Song Huanxi to continue writing.

Song Huanxi was as good as a stream, and her attention returned to her notebook, and she continued to write:

He Jiao changed the title slightly: "When the ship is downwind, the speed can be increased by twenty knots per hour, and after two hours of sailing, the ship begins to have a tailwind, asking, this time, how long will it take for the ship to arrive in the port city?" ”

He Jiao prepared paper and pen for Ah Qiang empatheticly, Ah Qiang grabbed the pen and pondered for a long time, but did not write a word.

He Jiao asked for a pen and paper, drew a coastline directly on the paper, and drew a small boat, connecting a straight line between the two, writing 350 nautical miles, and about a third of the position, drawing a small boat, and writing two hours later.

The front is marked with 50 knots and the back is (50+20) knots.

After drawing, He Jiao handed the pen and paper back to Ah Qiang, smiling: "I can't think of it in my head, we can do some auxiliary lines first, you see, isn't it clear at a glance, it's much simpler?" ”

Ah Qiang looked at the beauty in front of him with admiration and praised: "You are so clever!" ”

……

In the next second, Mr. Cai Tong's voice sounded in front of him: "It's three and four-sevenths of an hour, right?!" ”

Song Huanxi looked up, only to see that on the blackboard, there were two small boats and a coastline, and even the numbers were clearly marked, she couldn't help laughing, and said, "Mr. Cai, in the first two hours, you forgot to add it!" ”

Cai Tong patted his head: "That's right! It's five and four-sevenths of an hour! ”

Song Huanxi nodded, kept in his hands, and let Ah Qiang in the book also say the correct answer:

…… He Jiao nodded approvingly, spread out her palms, and motioned for Ah Qiang to take another little star.

This time, Ah Qiang didn't open it, and when He Jiao looked at it suspiciously, he held the little star and explained with bright eyes: "No matter what is written in it, it will definitely make me very happy, so when I'm not happy, take one apart, won't I be happy?" ”

He Jiao was amused by him, "Okay, then you can save it!" ”

The teaching continued, and this time, He Jiao added the headwind situation again: "Headwind, the speed will be reduced by 20 nautical miles per hour, now, we drive normally for two hours, downwind for two hours, and upwind for another hour, when will we be able to reach Port City?" ”

Ah Qiang was silent for a moment, and couldn't help but complain: "The weather on this sea is quite changeable!" ”

He Jiao smiled and said nothing.

He drew and drew in the notebook, and quickly gave the answer, but he had an ominous premonition in his heart.

Sure enough, the next question rose sharply.

In a short distance of 350 nautical miles, there was lightning and thunder, and they were forced to slow down, and when the wind and waves were calm and drove normally, they encountered a big ship to avoid, and then they hit the reef, and the whole boat was forced to get into a lifeboat, five buckets of water, and eleven people...... How many days can you hold out at sea?

In addition, another self-reliant athlete is determined to swim back to Hong Kong City...... Q, will he be able to succeed before he runs out of energy?

He stretched out his hand and sent the hard-won little star back to He Jiao: "Teacher He, otherwise, you should take the star back!" ”

……

Cai Tong was already overjoyed, Song Huanxi blinked, and couldn't help asking, "Is it so funny?" ”

Cai Tong still couldn't close his mouth, "I don't know why, when I see the protagonist embarrassed, I think it's funny!" ”

Song Huanxi thought thoughtfully, from the reader's point of view, is this the case?

(End of chapter)