The scene along the way is basically the same, full of locusts, there is really a landscape that covers the sky and the sun, the first time he encountered such an insect plague, Lin Fan had to be cheeky and praise 'spectacular'.

I chose a field far away from Chang'an to take root, started the real practical class, and after drawing the specifications of a piece of land, I let those gentlemen dig it by hand, who told them to bully the poor students just now.

In front of the teacher, they didn't dare to complain, they did it obediently, and when they were tired, they changed to others, the boys were all assigned by Lin Fan to dig the ground, and the two girls and a maid were arranged to find the rice stalks that had not been eaten up by the locusts, and he was pacing around with his hands behind his back, and he could see that those boys had the intention of hammering him hard behind his back.

Although the rice stalks that have not been eaten are crawling with locusts, these girls have no complaints, but Xue Tao's personal maid Xiao Taohong has been pouting and scolding, she is not distressed by herself but by her young lady.

The rice stalks were piled up, the ditch was dug, and Lin Fan asked the worst students in the class who were lazy and bullied the weak students just now to go to the nearby river to fetch water, and if the ditch was not filled, he wouldn't want to go back to the bed to sleep tonight.

Ling'er, who was busy with her work, asked very puzzled: "Teacher, what are you doing here, digging ditches again, picking up rice stalks, and now irrigating water, what are you busy with, it's getting dark." ”

Lin Fan looked at the sky and said with a smile: "What you are waiting for is that it is dark." ”

Xue Tao Shi Shiran, who was sitting on the other side, moved over and asked in a low voice: "Teacher, did you give us a lesson today, I heard that the last practical class was related to textbook knowledge, is it the same this time." ”

Lin Fan smiled mysteriously: "Then it depends on whether you are observant, in fact, as long as you observe carefully and think carefully, many things can be related to textbook knowledge." ”

After the ditch was filled with water, it was dark, and Lin Fan got up and patted the dust on his buttocks and said to everyone: "The practical class is about to start, and tonight we will make a contribution to our Datang, come... ”

The students didn't know why the teacher asked them to burn the rice stalks, but they still obediently lit them, and the rice stalks on the high mountain immediately turned into a flame under the flames, not long after the flames started, there was a sudden buzzing sound in all directions, and the students were so frightened that they gathered around Lin Fan, this sound was very familiar, and it was this sound when the swarms of locusts flew overhead during the day.

These locusts army did not come at Lin Fan and the others, but pounced on the burning rice stalks, the crackling sound echoed around, those locusts flew in, and instantly turned into dry ashes, and landed on the rice stalks with a squeaky sound.

There are lessons to be learned, but these locust armies seem to be very conceited, and they all pounce on the fire to show their bravery.

The students were excited, except for Xue Tao and her little peach, who were so calm that Lin Fan was very painful, including Ling'er also joined the team, dozens of people scattered, without fear, they went to find rice stalks, and then threw them into the fire, and suddenly the flames were even stronger, and the army of heroic and fearless locusts flew in a steady stream and pounced on the fire.

Seeing all this, the students worked harder, and they felt that it was worth it to be able to avenge the day.

The fire attracted the attention of some surrounding villagers, they ran one after another, each holding pots and pans, originally wanted to help a certain compound extinguish the fire, but when they arrived in front of them, they found that dozens of children were playing with fire, and they wanted to teach a lesson, but they saw that there were locusts in the air and pounced on the fire and died, and they were immediately happy, and turned around and wanted to go back to imitate, and saw that there were many locusts floating on it in the ditch next to them, and they ran home one after another, gathered all the available laborers, and piled up rice stalks in their own fields, and dug ditches to irrigate water.

"Look, there's a fire over there, and it looks like those people just now are imitating us." A sharp-eyed student was immediately attracted by the flames in the distance.

"It's a pity that the rice stalks on our side are gone, and the flames are about to be extinguished... One student proposed, and it was evident that he still had a grudge against locusts.

There are many students who echo it, whether they are addicted to playing or really hate locusts, Lin Fan feels that the former accounts for a larger proportion.

The brighter the moon became, the brighter it was sprinkled on the earth, and the moonlight shone brightly in the water, and the reflection of the moon could be seen in the calm waves.

Lin Fan walked to the edge of the ditch, called the students who were discussing going there to exterminate the locusts bravely, and asked leisurely, "What do you see in the water?" ”

"Moonlight." Someone answered.

"Huh? And locusts! ”

"I've seen a lot of them, and some of them are still struggling."

"I saw it too."

"Do you know why locusts are in the water?" Lin Fan asked such a sentence, and the scene immediately fell silent.

"Then do you know why the locusts are rushing into the fire again, even though it is a raging fire." The scene was even more silent, and they now realized that this was not a simple life experience class, and they didn't expect it to be a knowledge-related course.

"Ling'er, think about it, the teacher has already taught you."

After being silent for a long time, Ling'er, who had been biting her lip, suddenly stopped biting, and her eyes glowed brightly when she looked up, "Both are because of phototaxis, locusts are insects, and the characteristic of insects is phototaxis." ”

Lin Fan nodded with satisfaction and added, "The light in the ditch comes from the moon, which is based on the principle of light reflection in physics, and you will learn it in the future." ”

There was a sound of chariots and horses, the sound was getting closer, and the second stunned man slowly drove with seven carriages, this is Lin Fan before leaving, and told them to come and pick him up and the students at this time.

The students admired the teacher for thinking so thoroughly, everyone talked and laughed, laughed and laughed on the carriage, and the people immediately relaxed when they got on the carriage, and then under the bumps of the carriage, the whole person was decadent and tired, and the fatigue brought by the day's fatigue swept in at this moment, and most of the students fell asleep.

Lin Fan, Ling'er, Xue Tao and Xiao Taohong sat in a carriage together, and the two were stunned as coachmen, although they were a little crowded, but it was not bad to get off.

"How is the old grain selling?" On the way, Lin Fan asked questions that he was more concerned about outside of teaching.

"There isn't much left, and after checking the account books, they bought back the old grain that came in from those merchants and official households, and now there are some left, which were bought from ordinary people."

Hearing the second stunned answer, Lin Fan nodded with satisfaction: "The rest of these are sold at the original price when they were bought, if you meet people who can't afford it, don't pay a penny, send it directly, but remember, look at the bright spots, don't let those merchants and officials who are resentful pretend to be poor people and pit us in turn." ”

The second stunned smiled and said: "Don't worry, I don't have any other skills, I still have a little bit of the ability to look at people." ”

Lin Fan nodded and said, "Also, you don't need to send too much old grain, just get your mind." ”

"Why, if you want to send more, good people will do it to the end." The second stunned looked back at Lin Fan in confusion.

"Cup of rice to support benefactors, fighting rice to support enemies."