备课是教师在讲课前准备讲课内容,是全部教学工作的基础,是提高教学质量的重要环节,是上好课的前提和关键。备课的质量直接影响到上课的质量。实践证明,只有认真备好课,才能成功地上好课。备什么,怎样备,这是每一个教师在备课前必须 Preparation lesson is the teacher prepare lecture content before the lecture, is the basis of all teaching, is an important part to improve the quality of teaching is a prerequisite and key to a good lesson. The quality of lesson preparation directly affects the quality of the lesson. Practice has proved that only by doing a good job in class can we successfully do a good job. What to prepare, how to prepare, this is every teacher must prepare before the lesson