讲评课是中学物理课堂教学的重要组成部分 .上好物理讲评课对纠正错误、扬优补缺、丰富体验、巩固双基、规范解题、熟练技巧、开阔思路、提高学生解决物理问题的能力、培养学生的创新意识等有着特殊意义 .物理讲评课应遵循以下原则 :1　目标明确原则讲课 (题 )首先有一个“为什 Lecture class is an important part of physics classroom teaching in middle school. Good physics lecture class can correct mistakes, enhance talents, enrich experience, consolidate double bases, regulate problem solving, skill, broaden train of thought, improve students’ ability to solve physical problems, Cultivating students’ sense of innovation is of special significance. Physics lectures should follow the following principles: 1 Goal-clearing principles (teachings) First, there is a