……

"Ahem, since you didn't have any interesting proposals in advance for the first lesson, I chose the topic myself. After Luo Ling finished speaking, he snapped his fingers, and the curtain and door closed automatically, projecting an image on the blackboard, "This can be regarded as a whim, after all, there are not many people who are interested in this aspect, and I have not explained this as a special topic before, well, today, we are going to learn about the geography of the Azure Continent." ”

His eyes swept over the students in the class, and most of them showed an attitude of indifference, but Lu Sen's eyes lit up, and it was not difficult to see his love for this course.

"Teacher, what is this?" asked Althea, tilting her little head sideways, looking puzzled.

"It's a map. Lu Sen preemptively replied, which was a miracle for him, who usually barely spoke in class.

"Maps? Elizabeth looked at Luo Ling, waiting for Luo Ling's explanation.

"Topographic maps, to be exact. Topographic map refers to a projection map of the undulating form and geographical location and shape of the earth's surface on the horizontal plane. Generally, it describes the changes in the topography of the geography, and represents the physical geographical elements such as ground landform, hydrology, topography, soil, and vegetation in detail through accurate surveying and mapping. Well, it seems that you don't understand that. Looking at the group of students, except for Lu Sen and Xiaofei, who all looked confused, Luo Ling realized that it was meaningless to talk about it at all.

In short, a topographic map depicts the geomorphological changes on the surface of the earth, such as deserts, forests, basins, plateaus, lakes, forests, and other geographical distributions. You should be able to understand that, right?"

Looking at the students who had finally begun to open their minds, Luo Ling finally recalled the fear of being depressed to death because they couldn't open their minds.

"Maps can be divided into many types, topographic maps, political distribution maps, climate distribution maps, traffic distribution maps, precipitation distribution maps, etc., etc., which are used to represent different geographical distributions. The key to looking at a map is the scale and legend, as well as the judgment of the direction. The scale bar is the ratio of the distance on the map to the actual distance, such as the ratio of 1:10000, which represents the distance of one centimeter on the map, and the actual distance is 10,000 centimeters, that is, 100 meters. "I didn't forget to open the collective ridicule skill when I was lecturing, how deep is Luo Ling's resentment against these students......

On the topographic map, different colors represent different terrain, for example, green represents grassland, yellow represents mountains or hills, white represents snow peaks, and blue represents the ocean. There are also gradient colors that represent changes in altitude. Secondly, for the direction of the map, first look at whether there is a cut head that marks the direction, S refers to south, south, N refers to north, and north. If not, the general situation is up, north, down, south, left, west, right, east. If you take the map backwards, it's okay if I didn't say it. ”

Next, Luo Ling showed several modern topographic maps for the students to discern. "For those who plan to stay at home all the time and be an otaku or otaku, even if they learn, it is not of much use. Learning to read maps is for the convenience of travel, distance calculation, itinerary arrangement, etc. For those who like to play and travel, learning to read maps is definitely an excellent way to avoid getting lost. ”

After talking so much in one breath, a little uncomfortable, Luo Ling took out a glass of water from nowhere, took a sip and continued, "Okay, showing you a modern map is pure entertainment, and it's nothing if you can't identify it, before, I asked Feng Rou to summarize and sort out the geographical data of the continent and draw a map of the continent, in terms of geography, after all, you don't have a systematic system, measurement and representation method." Except for the human realm, the elven race, the orc empire and other races, the records of many places are probably blank. This map is drawn by Feng Rou, and the credibility should be relatively high, so before there is accurate information, it should be used as a standard. "Ahem, it should be quite high, I believe the wind is soft. There may be a 100% error or something, but fortunately, the students don't know much about these aspects, so it should be fine.

Luo Ling, who is full of confidence on the outside, but is actually weak on the inside, "The diorama has been made, you can watch it for yourself." "A giant virtual 3D map formed by the laser is presented in front of everyone.

Luo Ling looked at the students talking about it, his eyes were irrepressibly curious, and the corners of his mouth couldn't help but show a smile, being able to arouse their interest was his most important purpose.

"Hmm, what's wrong, Xiaofei?" asked when he saw Xiaofei raise his hand.

"Teacher, are you sure that your data is accurate?" Xiaofei's calm voice seemed to have infinite aggression, which made Luo Ling can't help but want to refute, after all, she had suffered too much because of her before.

Subconsciously turned his head to look at Lu Zero, Lu Sen stared at Luo Ling with undisguised suspicion in his eyes.

"......" really can't be hidden now, even if Xiaofei doesn't know geography, Lu Sen must have seen a lot of mistakes, "No, part of it was calculated by Feng Rou." "I still don't give up and add one less word, obviously most of it is based on speculation.

"yes, I see. He turned back and nodded at Lucerne. Wipe, it's really colluding to yin me, if you don't admit it just now, it's really over. Xiaofei, this guy, has a black belly to the extreme, even darker than my Chitose.

Xiao Fei's fingers quickly tapped a few times on the virtual keyboard, and a new map covered the original map, except that it was very different from the map shown by Luo Ling before, and it was obviously much more detailed in many details.

"Did Xiao Fei know such a detailed map from the beginning?"

"No, before this lesson, I didn't know about the teacher's method of representing the topography of the system, which I had just drawn after discussing with Lu Sen. ”

Isn't it really a genius, just come into contact with the concept, immediately be able to integrate all the previous knowledge, carry out system planning, integration and summary. "However, you already know a lot about the landforms of the continent before, right?"

"Well, but not entirely true. When I was a child, I read the charts and various geographical collections of the Fez Empire, and roughly grasped the coastline of the blue eastern continent, as well as other geographical documents and national border distribution classics, and finally organized, converged, systematized, and standardized this map. However, I don't think the teacher must have read Louler's "The Blue Study", otherwise, Feng Rou's speculation would not be so outrageously wrong. Xiaofei said teasingly.

"......" Luo Ling, who looked confused, was dismantled by Xiaofei again.

Lu Son: "Hey, doesn't the teacher even know about Lulier? He is the most famous explorer in the history of the continent, especially his "Blue Scholar" is the most authoritative material for studying the geography of the continent, you know, many human countries, and even the boundaries of the orc empire are based on the map he drawn. ”

"Uh...... I really don't know. He replied embarrassedly.

"Huh~ The teacher also has something that he doesn't know?"

"Yes, we always think of the teacher as too perfect, but in fact, he is just an ordinary person. ”

"Teacher, just a teacher. ”

"The teacher is so disappointing, he doesn't know such a simple thing. Words of disappointment or ridicule or surprise kept coming to Luo Ling's ears.

made Luo Ling have a kind of melancholy of "if you are not careful, you will lose all the games", and you are dissatisfied with these guys who "turn your face and don't recognize people", and there is also the shame of "having no place to be ashamed".

Bad guy, Xiao Fei, it's a bad guy! He screamed in his heart, and when Luo Ling saw the undetectable arc raised by the corner of Xiao Fei's mouth, he wanted to die. I can't take this lesson, who's going to treat these students for me?

Looking at Luo Ling's embarrassed appearance, after Xiao Fei was satisfied, she put on a serious (cute) expression and said, "Teacher, don't you think it's a little strange?"

"Uh-huh, what?" asked weakly, but wondered in his heart, did this guy have a new way to rectify himself?

"Is this the data that the teacher got with floating satellites and sensors?"

"Yes, what's wrong with these?"

"No, these data must be much more accurate than those recorded in the literature and classics," without waiting for Luo Ling to complain, he continued, "Teacher, please take a look at the sampling location of these data. A red circle appeared on the map, "Isn't it too coincidental that the data for other places besides the Ernisel Academy and its neighbors or the areas through which the teachers passed?" For example, here is the edge of the desert, here is the edge of the lake, and here, in the valley of the mountains, in the clearing of the town, in the upper reaches of the waterfall, on the edge of the mire, in the strait of the bay with its unique topography. It's all too much of a coincidence. ”

"Yes, it seems to me that the landing point of the floating satellite is uncertain, and it is possible to fly or crash in any place, right?"

"Well, there shouldn't be any problem in terms of probability or possibility, but something is wrong with Feng Rou, I guessed according to the teacher's accurate data, according to the calculation method similar to Feng Rou, and the similarity with the diagram shown by the teacher is 93%, and the actual map I calculated is less than 10% consistent, and the map calculated by Feng Rou is only 3% consistent. This almost means that the map that the teacher showed earlier is completely wrong. ”

"Woo..."Regarding Xiaofei's behavior of sprinkling salt on her wound, Luo Ling could only use silence to express his strong dissatisfaction, and at the same time, it was more of a kind of shame and depression.