Teacher Sun Luhong, who is known as "the first person in China Olympic Mathematics", once introduced how her mother enlightened herself in mathematics. For example, he has a steelyard at home and his mother teaches him how to use it. By weighing the common things around him, such as books, schoolbags, and commodities bought from the market, he can intuitively feel the difference between 1 kg and 2 kg, and naturally he will come into contact with such calculation problems as "even a bottle filled with water is 1.6 kg, an empty bottle is 0.8 kg, and the water is heavy". In the process. He not only contacted the content of "weight" in mathematics in advance, but also learned the practical meaning of "decimal" and learned the calculation method of decimal. When he learns relevant knowledge in class, he will be able to do it with ease.
Later, Sun Luhong became the champion of the first China Olympic Mathematics Competition and was admitted to the Mathematics Department of Beijing Normal University. Although he has a certain talent for mathematics, his mother's enlightenment to mathematics when she was young contributed a lot to this achievement, which made him unconsciously interested in mathematics and gave him more motivation to learn. This kind of mathematics enlightenment, like Sun Luhong's mother's, can be called happy education, and it is definitely not to teach nothing.