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列方程解决问题就是把实际问题通过建立方程模型抽象成数学问题.这类问题大多难在如何从实际问题中抽象出数学问题,构建合适的数学模型.解决这个难点的关键是找出题目中的相等的数量关系,即我们通常简称的相等关系.笔者在教学实践中探索总结了六种找相等关系的方法和策略,遵循这些方法去找相等关系,就可以让学生顺利的解决列方程解应用题的问题.1利用题目中的关键语句直接找相等关系有一些应用题的文字叙述中就包含了能体现相等关系的关键词或语句,可以直接把这些关键词或语句用笔划下来,稍加整理就是要找的等量关系.
Column equation to solve the problem is to abstract the actual problem through the establishment of equation model into mathematical problems. Most of these problems are difficult to abstract mathematical problems from the actual problem, to build a suitable mathematical model.The key to solve this problem is to identify the subject Equal number relationship, that is, we usually referred to as the equal relationship.The author explores in the teaching practice of six methods and strategies to find equal relationship, follow these methods to find the same relationship, we can allow students to successfully solve the column equation solution Questions .1 use the key words in the topic directly to find the equivalent relationship There are some problems in the application of the text description contains keywords or statements can be equivalent to the relationship, you can directly use these keywords or sentences stroke down a little Finishing is looking for the same amount of relationship.