The so-called knowledge transfer method is to use the connection between old and new knowledge to inspire students to compare old and new knowledge, think from old knowledge, understand new knowledge and learn to learn. The influence of one learning experience on another learning is called learning transfer in psychology. This influence is sometimes positive and sometimes negative. Where one kind of learning promotes another, it is called positive transfer (hereinafter referred to as transfer), and one kind of learning interferes with or inhibits another kind of learning, it is called negative transfer. Mathematical knowledge, skills and mathematical thinking methods will be transferred. According to different dimensions, learning transfer has different classification methods. As mentioned earlier, there are positive transfer, negative transfer, positive transfer and reverse transfer in mathematics learning. In addition, according to the direction of migration, migration can be divided into vertical migration and lateral transfer. The former refers to the migration of low-level concepts or rules to high-level concepts or rules. For example, mastering the solution of a linear equation with one variable is helpful to learn to solve a quadratic equation with one variable.

From the above discussion, we can easily see that positive transfer can effectively promote students' learning. However, in the actual teaching process, there are still some factors that affect the transfer, but it also provides us with many inspirations in mathematics education.