列方程解应用题时,要把题中的未知数当做已知数来建立等量关系,即列方程。这种新颖的思维方法,学生初学时感到不习惯,难以掌握。为了突破这一难点,引导学生由熟悉的算术解题思路向列方程解应用题的思路过渡,我采用了“前有孕伏、中有突破、后有发展”的教学方法。 Column equation solution to the problem, we should take the unknown as a known number to establish the same amount of relations, that column equations. This novel way of thinking, students are not used to beginners, difficult to grasp. In order to break through this difficult point and guide students to transition from the familiar idea of ​​solving arithmetic problems to solving the problem of solving column equations, I adopted the teaching method of “before pregnancy, after breakthrough, and after development”.