扩展教学是引入教材以外的知识或者材料,来补充课堂教学的一种策略。这种策略避免了机械单调的教教材情况的发生,符合学生的认知发展规律。本文从扩展教学在高中政治教学中运用的必要性谈起,重点阐述了扩展教学在高中政治教学中的运用的策略,最后提醒扩展运用应把握“度”。 Expansion of teaching is the introduction of knowledge or materials other than teaching materials to supplement classroom teaching a strategy. This strategy avoids the occurrence of mechanical monotonous teaching materials, in line with the law of cognitive development of students. This article starts with the necessity of extending teaching in the political teaching of senior high school, and emphatically expounds the strategy of extending the teaching in high school political teaching. Finally, it reminds us that we should grasp the extension of teaching.