The relationship between number and quantity belongs to the relationship between name and thing. The correspondence between number and quantity is the content of middle school students' mathematics learning. Through intuitive teaching AIDS and operating methods, children can cultivate their interest in mathematics in real situations and gradually form mathematical concepts. The relationship between number and quantity belongs to the relationship between name and thing, and subjectivity and objectivity cannot be changed at will. The relationship between number and quantity belongs to the relationship between name and thing, subjective and objective.