3. The idea of invention

After Mr. Wen's speech, Principal Qian was about to go to the front desk to give the first lesson to the primary school students, this was because he wanted to make a good start for the maker training class, and he was afraid that other teachers would not have the heart to mess up this first class. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 Info What should I do in the first class? He thought for a long time in the principal's office. After careful thinking and a long time of preparation and preparation, on the 10th day after Mr. Wen's speech, Principal Qian finally started the first lesson to the primary school students.

Principal Qian took out the outfit of the Youyu Institute again, he was wearing a suit and leather shoes, his hair was dyed black and bright, he still walked to the podium with a briefcase, no matter how he whitewashed his outfit, he couldn't cover his face and body shape, he already looked a little old, and his body fully showed that his face was easy to age and the years were ruthless.

The first thing he said to the elementary school students was: "Hello elementary school students!" The elementary school students in the audience said in unison: "Hello teacher!"

Next, Mr. Qian stood on the podium and said calmly: "I will take you to a place today, this place is our Bo'ai University's well-designed and perfectly built Maker Dream Factory for primary school students, it is built in the movie hall of our university, although we all gathered under the podium where I stood, but this is not our first class, our class is in the Maker's Dream Factory.

After he finished speaking, he waved his hand and said, "Now everyone come with me to our Maker Dream Factory." Next, Principal Qian led the way in front, Teacher Wen led the team behind him, and a team of people came to the door of the university movie hall in a majestic manner.

After ten days of careful design and decoration by Principal Qian, the cinema hall has become a valley of light, and its doors are open to welcome the arrival of young students.

The team led by Principal Qian stopped in front of the gate of DreamWorks Glory Valley, Teacher Wen began to organize the team, he stood in front of the team and said to everyone: "There are many people in class today, we must abide by discipline when we enter DreamWorks, our team is now standing in four columns, we enter the gate in a single column in order, we must maintain a good queue and order,"

After he finished speaking, Principal Qian led the first row of primary school students into the Dream Factory, and Teacher Wen stood in front of the door to watch the team enter the field in an orderly manner.

The young students walked into the movie hall, and they sat down on the row of seats in the movie hall under the arrangement of the principal. The difference between the movie hall and the past is that a layer of plastic film is pasted on the wall of the movie hall, and after the primary school students enter the venue, the lights in the hall are extinguished, and all the people in the hall seem to have entered a time tunnel.

The hall is surrounded by landscapes, and the famous mountains and rivers from all over the world are presented in front of everyone. Ten minutes after the display of various landscape paintings, a cartoon boy wearing a red and blue melon skin baseball cap and suspenders, he held a plastic whip in his hand and raised his hand to point to a few big characters on the illustrated board and said to everyone: "The inspection of the development history of science makers is at the beginning, and I hope that the children will watch it carefully." ”

After he finished speaking, the stereoscopic image of the Valley of Light began to be broadcast, and the first thing that came into everyone's eyes was the various power engines invented by inventors since the initial period of science and technology, and the power engines were steam engines, internal combustion engines, and electric motors in the order of invention.

The cartoon boy started with the steam engine, and he pointed to the pictures before and after Watt's invention of the steam engine with the whip in his hand and said: "Little students: many of the great inventions of inventors are based on the association of seeing the changes of some simple things and collide with the idea. Before Watt invented the steam engine, he saw that after the water in the kettle boiled, the steam lifted the lid of the kettle and had an association, he thought that if the steam could hold up the lid of the kettle, then we would seal the spout of the kettle and leave a vent, so that the steam could be ejected from the vent to generate kinetic energy to drive the steam turbine to rotate and generate power, so as to use this power to drive the machine to work.

Watt's whimsical idea prompted him to have the determination to invent, and the determination to invent made him finally invent the world's first steam engine after unremitting efforts, the appearance of the steam engine is an epoch-making creation, it ushered in the advent of a machine age, and is a milestone in the history of scientific development. ”

The cartoon boy went on to introduce the younger classmates to various pictures and introductions of Watt's invention of the steam engine. At the end of the demonstration and introduction of the steam engine, the little boy said a few thought-provoking words, he said: "Invention is simple and simple, complex and complex, the key is that we must have a determination to invent and create, and with determination, we will follow the path taken by the previous inventors, and we will definitely be able to achieve the success of the invention---------。