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一次归一问题应用题是应用题的教学重点,是今后学习两次归一以及正、反比例应用题的基础。因此,必须认真教好这部分内容。一、复习旧知,做好铺垫。归一问题应用题的数量关系,一般属于份数与总数关系。所以在新授例题之前,可通过复习如下一些常见的份数与总数关系的简单应用题,为进一步学好归一问题应用题做好必要的铺垫。①王师傅每小时加工25只零件。照这样计算,8小时可以加工多少只? ②一辆客车5小时行驶200公里。平均每小时行驶多少公里?
The application of the first time to solve the problem is the teaching of the application of the key points, is the future study of two normalized, and the application of inverse proportion of the basis. Therefore, this part must be carefully taught. First, review the old knowledge, well paved the way. The relationship between the number of questions applied to the problem, the relationship between the number of copies and the total number. Therefore, before the new grant example, you can make the necessary groundwork for further study on the application of the normalization problem by reviewing some simple common application questions as follows. ① Wang master processing 25 parts per hour. According to this calculation, eight hours can be processed only? ② a bus traveling 200 kilometers 5 hours. How many kilometers per hour are on average?