从应用题的整体结构出发,把应用题组成一个一个题组,把认知结构与知识结构有机地统一起来,有利于培养和发展学生的逻辑思维能力,培养思维的深刻性、灵活性和创造性。我在四年级“归一”问题的教学中是这样试验的。一、抓应用题的基本训练,勾通知识的内在联系。补充条件和问题是应用题基本训练中常见的一种形式。是认识、分析、理解应用题结构的重要因 Starting from the overall structure of the application questions, the application questions are grouped into groups, which organically integrate the cognitive structure with the knowledge structure, which is conducive to cultivating and developing students' logical thinking ability and cultivating the profoundness, flexibility and creativity of thinking . In the fourth grade of “normalization” I teach this way. First, grasping the basic training of application questions, linking the inner link of knowledge. Supplements and questions are common forms of basic training in applied topics. It is an important factor to understand, analyze and understand the structure of application questions