一、“条件”和“问题”的“求同”与“求异”对比四年级整数部分的三步或四步应用题比较难,如何突破难点培养学生分析解答应用题的能力是关键。在教学中,我采用同类题,在已知条件和所求问题上的变化,进行 First, the “condition” and “problem” of “seeking common ground” and “seeking differences” Compared with the fourth grade integer part of the three-step or four-step application is more difficult, how to break through the difficulties to develop students ability to analyze and answer questions is the key. In teaching, I use the same type of question, in the known conditions and the changes on the question, carried out