“凡事预则立不预则废”。对于我们的数学学习,更是如此,在上课以前把要学的知识先学一遍,对知识有个粗浅的了解,以便在正式的学习过程中掌握主动。一、预习可对旧知识进行弥补通过预习的过程中,必然会有懂的部分,也会有不懂的内容。预习就像“火力侦察”一样,可以自己发现自己知识上的薄弱点,在课前补上这部分,扫请了障碍。这样,在学习和理解新知识时就会较顺利。事实上部分学生之所以听讲效果差,就是没有掌握好听课所必需的旧知识,从而给听课带 “Forewarned is forearmed, without prejudging the waste”. This is even more true of our maths learning, prior to class, prioritizing knowledge to learn and a superficial understanding of knowledge to take the initiative in the formal learning process. First, preview can make up for the old knowledge Through the process of preview, there must be some understanding, there will be some do not understand the content. Preview Like “fire reconnaissance ”, you can find yourself a weak point in knowledge, make up this part of the class, swept the barrier. In this way, it will be easier to learn and understand new knowledge. In fact, the reason why some students listen poorly, that is, do not have the necessary knowledge of the old class to give the class