钻研教材是一个老话题,似乎不值得一提。但是,当我们走进课堂听课的时候,甚至听公开课、优质课的时候,都会感到钻研、吃透教材是多么重要。因为,执教者对教材的理解、把握不清楚、不明白、不深入的现象还是比较严重的。其情形可以概括为:肤浅不到位,甚至有偏差;到位 Studying textbooks is an old topic that does not seem worth mentioning. However, when we go to class to attend lectures, we even feel that it is important to study and classify textbooks even when we open classes and class. Because, coaches of understanding of the teaching materials, grasp is not clear, do not understand, not in-depth phenomenon is still more serious. The situation can be summarized as: superficial not in place, or even deviations; in place