As the saying goes, "a good beginning is not far from success." The purpose of the lead-in session is to stimulate students' interest and desire for knowledge, and let students' multiple senses participate in learning mathematics together.

In the lead-in method, storytelling is popular with students. Introducing an interesting story into mathematics classroom can instantly enhance the interest of teaching, help students to open their minds and exert their imagination, further stimulate their interest in learning and desire for knowledge, and let them naturally enter a good learning state.

Second, hands-on operation to enhance the fun of new teaching links

Educator Tao Xingzhi once said that there are two treasures in a person, one is the brain and the other is the hands; The brain can think and the hands can work. Learning mathematics is not to solve several problems, nor to cope with various exams, but to develop students' intelligence, help students cultivate their thinking ability and improve their ability to analyze and solve problems.

To stimulate students' interest in learning and guide them to participate in teaching enthusiastically, we need to create a learning environment for them to explore and guess, so that students can do more hands-on operations and encourage them to practice and experience, so as to truly understand the formation of mathematical knowledge.

Thirdly, infiltrate mathematical culture to enhance the interest of knowledge expansion.

Practice has proved that mathematics is also an important part of human culture. Infiltrating mathematical culture in mathematics teaching, through studying and studying some typical mathematical problems, can not only broaden students' horizons, but also inspire students' thinking, thus enhancing the interest and vividness of mathematics teaching and prompting students to study actively and consciously.

Taking the teaching of "Measuring Polygon Area" in the fifth grade of mathematics published by People's Education Press as an example, the students are guided to use scissors, rulers and other tools to cut the unfamiliar figures into familiar ones, and then calculate the area. At the same time, it tells students about the "in-and-out supplement method" of the ancient mathematician Liu Hui, and verifies various formulas for calculating the graphic area in "Nine Chapters Arithmetic", so that students can understand that reduction is a more effective method since ancient times. After students understand the solution to the problem of "chickens and rabbits in the same cage", they can also be introduced into the problems of "100 yuan to buy 100 chickens" in Zhangqiu's "Calculation Classics" and "100 monks to divide steamed bread" in the Ming Dynasty. After students understand the principle of "solving equations", they give the questions of "Li Bai drinking" and "Diophantine epitaph" in ancient Greece.

These math problems are very interesting and have been passed down among the people until now, and some math problems have been included in math textbooks.