作为一线教师,情景式教学成为学生学习的动力、起点和贯穿整个学习过程的主线;另一方面,通过学习生成问题,让学习过程成为提出问题、分析问题、解决问题和拓展问题的过程.也就是说,要千方百计把没问题的学生教成有问题的学生,把问题少的学生教成问题多的学生.让学生感知数学是自然的、清楚的、有用的、能提高能力的,这就要求老师首先必须是“有问题”的老师,如何整体把握好每一章、每一节课的教学内容所蕴含的 As a front-line teacher, situational teaching becomes the motive force, starting point and the main line that runs through the whole learning process. On the other hand, the learning process becomes the process of asking questions, analyzing problems, solving problems and expanding problems. In other words, we should do everything possible to teach students without problems to students in question and students with fewer problems to students with more problems. To make students feel that mathematics is natural, clear, useful, and capable Require teachers must first be “problematic ” teacher, how to grasp each chapter as a whole, the content of each lesson is contained in the teaching content