对于基础薄弱的农村普通高中生,物理学习台阶大,教师必须想方设法降低起点,分散难点,其中物理概念的引入教学就是降低起点的关键。通过设疑导学启发、新旧知识同化、运用数字和实验教学引入物理新概念,启发学生思维,夯实学习基础,对提高教学质量非常有效。 For ordinary senior middle school students in rural areas with weak basic foundation, teachers must find ways to reduce the starting point and disperse the difficult points. The introduction of physical concepts is the key to reducing the starting point. It is very effective to improve the quality of teaching by setting the inspiration of doubt-guided learning, the assimilation of old and new knowledge, the introduction of new concepts of physics by using digital and experimental teaching, enlightening the thinking of students and consolidating the learning foundation.