Once in class, the teacher said, "Today you calculate the sum of 1 plus 2 and 3 to 100. Whoever can't figure it out will be punished for not going home for lunch. " After the teacher finished speaking, he began to read novels. The children began to calculate: "1 plus 2 equals 3, 3 plus 3 equals 6 ... The number is getting bigger and bigger, and it is difficult to calculate. But soon, Gauss reported to the teacher that he did it himself. The teacher thought Gauss was making trouble, but he was surprised to see the numbers written by Gauss: 5050. How did this 8-year-old Gauss get this value so quickly? Gauss explained a method he discovered, which was used by the ancient Greeks and China people to calculate the sequence 1+2+3+ ...+N. Gauss's discovery made the teacher feel ashamed, and then he began to teach seriously. Moreover, with his encouragement, Gauss became a great mathematician. After hearing the story, the students were very excited. A student said in his diary that he should learn from Gauss, use his head, study hard and create inventions.

In fact, many application problems in textbooks belong to mathematical story problems. The following is a math story I rewrote for your comparison. (Synchronization Exercise Page 45, Question 8)

A snail accidentally fell into a dry well, and a toad climbed over to comfort him:

"The wall is too high, let it be. I have lived here for many years and gradually got used to it. " The snail thought, "How beautiful the world outside the well is! I can never live in a dark and cold well like a toad! " So he asked toad, "Uncle toad, how deep is this well?" ""This well is 20 meters deep. How can you climb up with such a heavy shell at a young age? "The snail was silent. It wanted to answer with practical actions. It climbed up the wall. Finally climbed 3 meters in the evening. The snail was very happy and thought, "at this rate, I can climb up in a few days." However, he was too tired, so he decided to sleep. In the morning, the snail was surprised to find himself asleep and slipped down 2 meters from the wall. The snail sighed, gritted his teeth and began to climb again. I climbed 3 meters at night, and the snail slipped 2 meters at night. Climb and climb, and finally the strong snail climbed up the well platform. Have you worked out, little friend? How many days did it take the snail to climb the drilling platform?

In this way, every student is very excited, interested in learning, active classroom atmosphere and good teaching effect. I think: If you want to be a teacher that students like, you must study the textbooks carefully and carefully examine the teaching methods of each class. Only when students like it will they pay attention to listening, instead of forcing them to listen blindly. There is no end to learning. Let's study and study again to improve our teaching art and charm! Address: Opposite to Jessie Court, Ganzhou District, Zhangye City