俗话说 ,良好的开端是成功的一半。所以导入设计历来是数学课堂教学的重要组成部分。但由于课程本身的局限 ,使它不可能像语文课导入那样形象生动、活泼有趣 ,进而成为小学数学课教学的一个难点。但听了特级教师刘德武老师教学的《二步计算的应用题》导入设计 ,觉得新颖别致的 As the saying goes, a good start is half done. Therefore, the introduction of design has always been an important part of mathematics classroom teaching. However, due to the limitations of the curriculum itself, it can not be as vivid, lively and interesting as the introduction of the Chinese class, which then becomes a difficult point in the teaching of mathematics in primary schools. However, after listening to the special teacher Liu Dewu's teaching “two-step calculation of application questions” into the design, feel novel and unique