A good situation provides students with opportunities to engage in mathematics activities, which stimulates their interest in mathematics and their desire to learn it well. A good teaching situation makes students actively participate in the teaching process with pure emotion, making the whole classroom a place of multi-directional infection. In this situation, students observe, imagine, understand and master with their inner feelings and emotions, which is conducive to optimizing classroom teaching, improving teaching efficiency and reducing students' learning burden. Teachers should be good at creating teaching situations, stimulating students' enthusiasm for learning and making the teaching process attractive to students all the time. For example, when I was teaching Statistics, I used a story to introduce: "Kid, is the animal kingdom holding a spring track and field meeting?" Would you like to have a look? " Then multimedia shows the dynamic situation: elephants are organizing animal registration, and there are four events: 30m, 50m,100m, 200m. The animals reported their names, and the elephant was too busy to know what to do. At this time, I asked my classmates if they would help the elephants. This question has pushed the students' enthusiasm and interest to a climax. They can't wait to help elephants queue up and count the number of people participating in various projects in an orderly way. So as to actively participate in learning activities.