本文主要研究小学数学教师学科教学知识的表现特点和关系,通过研究发现专家教师和非专家教师相比较而言,更容易理解学生在学习中的难点以及易错点,因此在实际的教学中,通常都是从学生容易出现错误的部分入手进行教学,而非专家教师通常在教学中更加偏重于引导学生直接对概念进行掌握。此外,本次研究还对小学数学教师的学科教学知识的表现特点和两者之间的关系进行了研究。 This paper mainly studies the performance characteristics and relationships of primary school mathematics teachers’discipline teaching knowledge. It is found that it is easier for teachers and non-experts teachers to understand the difficulties and mistakes of students in learning through the research. Therefore, in actual teaching, Normally, teaching is conducted from the part where students are prone to error. Non-expert teachers usually place more emphasis on teaching in order to guide students to grasp the concept directly. In addition, this study also studied the characteristics of primary school mathematics teachers’ teaching knowledge and the relationship between the two.