提高备课的实效是优化课堂教学的基础。教师要上好课，首先要备好课。备课，顾名思义就是教师上课前的准备工作，它不是对原有教材的复述和对教参的照搬，而是教师根据教学大纲要求，钻研教材，分析重点难点，对课本知识的再学习过程；是寻求最佳教学方法，传授知识的课堂艺术 Improving the effectiveness of lesson preparation is the basis for optimizing classroom teaching. Teachers must first prepare their classes for good classes. Preparing lessons, as the name implies, is the preparatory work for teachers before class. It is not the repetition of original teaching materials and the copying of teaching references. Instead, teachers are required to study teaching materials, analyze key points, and re-learn the textbook knowledge according to the requirements of the syllabus; Finding the best teaching method and imparting knowledge to the classroom art