板书是课堂教学内容的一个“缩影”。学生通过板书就可以管窥课堂全貌,学生通过板书就可以细梳课堂大意。然而,在小学数学课堂教学过程中,随着教育信息化浪潮的冲击,再加上部分教师对板书重要作用的认识不够,导致板书已经逐渐被淡化。将在理论联系实际的基础上,简略论述板书在小学数学教学中的一些重要作用以及设计原则。 Board writing is a “microcosm” of classroom teaching. Students can learn about the whole picture of the classroom through the blackboard. Students can comb the classroom through the blackboard. However, in the process of primary school mathematics classroom teaching, with the impact of the tide of education informatization, coupled with the insufficient understanding of the important role of some teachers in the writing of the blackboard, the blackboard has gradually been diluted. On the basis of the theory and practice, this paper briefly discusses some important functions and design principles of the blackboard in primary school mathematics teaching.