It is said that Guiguzi was the son of Qinglong and the Dragon Girl of the East China Sea. He had two great students - Sun Bin and Pang Juan. Guiguzi's teaching method is unique. He always asks the students to do one thing together to examine the students' strengths so that they can teach students in accordance with their aptitude. Guiguzi first asked Sun Bin and Pang Juan to go up the mountain to collect a hundred tons of firewood in one day. Pang Juan was so strong that he went to the mountain early in the morning and worked hard. He was sweating profusely and exhausted. At night, he could only collect 50 tons of firewood. But Sun Bin had been sleeping there. When the sun went down, Sun Bin lazily collected a load of firewood, then cut down a cypress tree, made it into a pole, and carried it down the mountain. Guiguzi was overjoyed. This was Sun Bin's "cypress" to carry firewood, so Sun Bin won the first round. Another day, Guiguzi called Sun Bin and Pang Juan to his side and said to them: "I will give you three coins each to go to Yangcheng to buy some goods. No matter what they are, as long as they can fill my three houses." Pang Juan When I went to the market, I saw that the goods were too expensive. No matter what I bought for three pennies, I couldn't fill three rooms. I was so anxious that I vomited blood. Later, I had to choose the cheapest wick that took up the most space and buy it back. I worked hard to decorate the house, but I couldn't fill three houses. At this time, Sun Bin was still sleeping there with his head covered. In the evening, Sun Bin went to the street lazily, bought three small candles from the market, and placed them in three rooms respectively. After lighting them, the whole room was brightly lit and filled with candlelight. Guiguzi laughed. Pang Juan was disgraced again. As we speak, it’s the night of the Mid-Autumn Festival. The breeze blows gently and the moonlight shines brightly. Guiguzi leads Sun Bin and Pang Juan to enjoy the moon together. Guiguzi asked casually: "Tell me, when is the moon the roundest?" Pang Juan answered first: "The moon is roundest on the 15th day of the month." Guiguzi looked at Sun Bin, who thought for a while and said, "According to my usual observations, It cannot be generalized, the moon is sometimes round "four" and not round "five". The moon is roundest on the fourteenth night of the big moon and roundest on the fifteenth night of the small moon." Guiguzi nodded. Then he gave them a question, using the shortest words to describe the scene of the Mid-Autumn Festival night sky. Pang Juan once again said first: "I only use eight words - the moon is bright in the sky and the stars are dotted." Guiguzi asked Sun Bin to answer again. Sun Bin confidently said: "I only use four words - the moon is bright and the stars are sparse." Guiguzi twisted his beard and praised: "Wonderful, wonderful". Another time, Guiguzi said to two disciples: "From today on, I will sit in the house for three days without moving. Who can think of a way to invite me out of the house?" Pang Juan said, "Isn't this easy to handle?" He said He walked around outside and said, "Teacher, a group of bandits came down from the mountain. They want to occupy the mountain and become the king. Go and have a look." Guiguzi said, "This is a barren land. What are the bandits doing here? It's a long way from here." At the meeting, Pang Juan ran in a panic and said, "Teacher, something bad is going on. Our firewood pile has been set on fire. Take a look!" Guiguzi leaned out and looked out. He saw thick smoke billowing outside the gate. He slapped the table and said, "You are so brave and naughty. You have no ability to invite me out. You actually lighted the firewood and ordered you to put out the fire quickly!" Pang Juan was helpless. He had no choice but to go to put out the fire. After another night, Pang Juan held a letter in his hand and said: "Teacher, someone sent a letter saying that Master passed away and asked you to go home quickly for the funeral. Someone is waiting for you at the bottom of the mountain. "Gui Guzi drank: "Bold maniac, the old man has passed away a long time ago, why are you spouting feces?" Pang Juan asked his teacher to go out three times without success, so he had to walk out of the house dejectedly. On the afternoon of the third day, when it was about to become dusk, Sun Bin came to see him, still sleepy. The teacher said: "Teacher, it is difficult to invite you out of the room, but it is not difficult to invite you in." Guiguzi said, "It's just as difficult!" Sun Bin shook his head and said, "I don't believe it." Guiguzi said, "Let's go." "Then the master and the apprentice came to the courtyard. Sun Bin said: "Teacher, I finally invited you out. "Guiguzi was stunned and burst into laughter. Mr. Guigu said again: "I will ask another question, what do you two think?" So Mr. Guigu took out a basket with five steamed buns in it. The teacher announced the rules : "There are five steamed buns now. Let's see who eats more until they are finished." You can only take two at a time, and you can take more after eating. The one who eats more wins. "After hearing what the teacher said, Pang Juan stepped forward, took two, and ate them hungrily. Sun Bin took a steamed bun in a hurry and ate it slowly, but Sun Bin still finished it first, so Sun Bin took it away according to the rules. The last two steamed buns. 3:2, Gui Guzi’s teaching inspired us a lot. Teachers are good at using certain situations to keep students motivated in thinking, and at the same time, they use results to illustrate problems. Students' self-awareness and tacit understanding. Education is mostly carried out through activities, focusing on observation and reasoning, and completing thinking and learning through hands-on practice.