以对话教学为理念,以“动量定理”教学片段为例,详细地分析了对话教学在物理课堂中的应用与功能,由此倡导对话教学并以此作为提升学生核心素养的途径之一. Taking the concept of dialogue teaching as an example, this paper analyzes the application and function of dialogues teaching in physical classrooms in detail by taking the teaching of “Momentum Theorem” as an example, which advocates dialogue teaching as one of the ways to improve students’ core literacy .