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列方程解应用题是初中代数教学的一个难点 ,也是中考的重点。下面通过实例重点分析常见的几种列方程错误 ,以提示学生准确把握题中数量之间的相等关系 ,并利用相等关系列出正确的方程。一、方程两边单位不一致例 1.一队学生去校外进行军事野营训练 ,他们以 5千米 /小时的速度行
The problem of applying equations to solving equations is a difficult point in junior high school algebra teaching and is also the focus of the examination. The following examples will focus on the analysis of common errors in several column equations to prompt students to accurately grasp the equal relationship between the numbers in the questions and to use equal relationships to list the correct equations. I. Inconsistent cases on both sides of the equation 1. A team of students went outside the school to conduct military camping training. They took a speed of 5 km/h.