一、“坐拥江山,心中有书”——对教学内容的整体把握一个对自己国家的情况不够了解的领导必定不是一个好领导,同样,对教材都不懂的教师也一定不是一个好教师!小学数学学科的教学内容具有整体性和系统性,要提高数学教学的有效性,必备的前提条件是教师应了解每册 First, “sitting in the heart of a book ” - - the overall grasp of the teaching content A state of their own country is not enough understanding of the leadership must not be a good leader, the same, do not understand the textbook of teachers must not be a Good teacher! Primary mathematics teaching content is holistic and systematic, to improve the effectiveness of mathematics teaching, an essential prerequisite is that teachers should understand that each book