The difficulty of mathematics lies in abstraction and pure theory. Mathematics is regarded as a "cold" subject, and the concepts, formulas and operations involved are often very abstract. Some theorems and formulas in mathematics are not intuitive and need a lot of deduction and proof to understand. Students are required to have higher logical thinking and abstract thinking ability. Physics is a more practical subject, involving various phenomena and laws in daily life, which is more intuitive and easier for students to understand.