我在教“分数、小数四则混合遗珠”现,醉生的计算错误原阂有两和一是方法不对头,能正确@握计算法则和 序,其二是计算的绍果用人较大。针对这r一情况,,;孩修正了教学方法。井通过近两年的实践,取得了一定的效果.其主要途径是: 一、一插过审队 明确运算m序一。_ 四则混合运算的教学,就整体来说,。首先日养液轻运算暇欣然后才是局都计算。因晰 必须 阿序关,即通过审题,明确计算顺序.这 见四则运算的首要问题,所以要扎扎实实地学深学环例如,在教学第丸册分数、小数四则混合运真伪例8时,首先要解决运算顾序,即先算什么。。再博什么的问题,用箭头表示为: I am teaching “scores, decimals, four mixed beads” now, drowning in the wrong calculation of the original two and one wrong approach, can correctly grasp the rules and procedures, and the second is the calculation of Shaoguo larger. In response to this situation, children revised the teaching methods. Well through the practice of the past two years, and achieved some results. The main approach is: First, one intervened over the trial team a clear operation m sequence. Four mixed arithmetic teaching, on the whole, First of all, it is the day when the Japanese liquid nutrient light operation is pleased. For the sake of clarity, we have to order a sequence of subjects, that is to say, we must clarify the order of calculation through examining the questions. This is the primary problem of the four operations. Therefore, we should study in earnest. For example, , We must first solve the sequence of operations, that is, what to count. . Bo then what the problem, with arrows that: