论文部分内容阅读
小学数学应用题的内容比较复杂,学生在学习这部分内容时,普遍感到困难较大.尤其当有些应用题条件比较复杂的时候,学生往往读了后半题,记不清前半题,不能正确地分析数量之间的关系,因此不能很快理出解题思路.借助图解的方法可以帮助学生理解题意,明确数量关系.通常采用的图有线段图、圆图、矩形图这三种,其中最常用的是线段图,下面通过实例谈谈如何借助线段图来解答应用题.例1.两块同样长的布,第一块剪去75尺,第二块剪去9尺,所余的布第二块是第一块的3倍,求每块布原有多少尺?
The content of primary school math application is more complicated, students generally feel more difficult to learn this part of the content, especially when some of the application questions are more complicated, students often read the second half, can not remember the first half, can not be correct The relationship between the number of analysis, it can not quickly solve the problem solving ideas with the help of graphic methods to help students understand the problem, a clear relationship between the number of commonly used diagram line segment, circular, rectangular three, One of the most commonly used is the line segment, the following examples by way of how to use the line graph to answer the application questions.Example 1. Two pieces of the same length of cloth, the first cut 75 feet, the second cut 9 feet, the rest The second piece of cloth is three times the first piece, and how many feet each piece of cloth?