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义务教育七年级教材中指出,以方程为工具分析问题、解决问题,即根据问题中的相等关系建立方程模型是全章的重点之一,同时也是难点.可见,分析问题、建立模型是列方程解决实际问题的核心.然而,对于刚进入初中的学生而言,因为他们的生活经验、思维方式及信息转化能力尚处于起步阶段,面对这些难题往往是一筹莫展.那么,作为教师,
The compulsory education seventh grade textbook pointed out that the use of equations as a tool to analyze and solve the problem, that is based on the equal relationship between the problems in the establishment of the equation model is one of the focus of the chapter, but also difficult.It can be seen that the analysis of the problem, the model is set column equation Solve the core of practical problems.However, for students just entering junior high school, because of their life experience, ways of thinking and information conversion capabilities are still in its infancy, in the face of these problems are often helpless.So, as a teacher,