论文部分内容阅读
分数乘、除法应用题是小学数学教材的重要组成部分,同时也是全套教材的重点和难点.当学生在解答“求一个数的几分之几是多少”、“已知一个数的几分之几是多少,求这个数”和“求一个数是另一个数的几分之几”时,由于对它们的数量关系及结构特点不能正确的理解与判断,造成知识的混淆和解题上的失误是屡见不鲜的.在教学中我们注意运用对比的方法弄清这三类应用题的区别和联系,帮助学生逐步提高解题能力.
Score multiplication, division application questions is an important part of primary school mathematics textbooks, but also a full set of teaching materials, the key and difficult when the students in the answer “for a few what is the number of”, "a known number of a few How many, how many, how many, how many, how many, how many, how many, how many, how many, how many, how many, how many, how many, how many, how many do we need to know? Errors are uncommon in teaching we pay attention to the use of comparative methods to clarify the differences between these three types of application questions and contacts to help students gradually improve their ability to solve problems.