让学生在生动具体的情境中学习数学,是新课标的一个重要理念。现行教材最大的特点和优点之一就是许多知识的引入和问题的提出、解决都是在一定的情境中展开的,对于教学一线的老师来说,常态课可以说是我们的教学中最普遍最真实的课堂。在繁忙的工作中教师不可能每节课都像公开课那样精心准备电脑课件,而主题情境图正为我们的常态课教学提供了直观、方 Having students learn math in vivid and concrete situations is an important concept of the new curriculum. One of the greatest features and advantages of the current teaching materials is the introduction of many knowledge and the formulation of the problems. The solutions are all carried out in a certain situation. For the front-line teachers, the normal classes can be said to be the most common in our teaching Real class. In busy work, it is impossible for teachers to prepare computer courseware in the same way as the open class in every lesson, and the thematic situation map is providing an intuitive and regular way for our normal teaching