中学物理教学着眼于提高学生的思维能力,让学生学到更加全面的物理学知识,要达到学生真正理解,掌握物理概念、定律、公式、实验,必须刻苦钻研.实践证明,通过发挥演示实验的引导与示范作用,可以达到激活学生学习兴趣,提高课堂教学效率,帮助学生形成实验技能,为学生独立或合作操作物理实验打下坚实基础.笔者在教学中,通过演示实验为学生树立好典范,向学生传授实验方法,培养学生学习中学物理的兴趣.案例:在“电场中等势线”的实验描述中,用稳恒电 Secondary school physics teaching focuses on improving students’ thinking ability, allowing students to learn more comprehensive knowledge of physics, to achieve the students to truly understand, master the concept of physics, formulas, experiments, must study hard. Practice has proved that through the demonstration of the experiment Guide and demonstration, to achieve the activation of student interest in learning to improve classroom teaching efficiency, to help students form experimental skills for students to independently or cooperatively lay a solid foundation for the operation of physics experiments in the teaching of the author through experiments to establish a good example for students to Students teach experimental methods to develop students’ interest in learning physics in middle school Case: In the experimental description of “equipotential line in electric field”