本节课根据新思维数学相关内容设计,既为进一步巩固和应用除法的知识,也是推理能力的专项训练,为今后推算图形等式、方程等做铺垫。教学时,要充分保证学生观察和思考的时间,重视学生思考的过程。要注意引导学生分析解题思路,寻找解决问题的切入口,从一元到二元,抓住两个等式之间的联系,初步感知消元法、代入法的运用。我们力求从学生的学习基础、学习过程、学习方法出发,通过数形结合、图形推算、抽象建 This lesson is based on the new thinking of mathematics related content design, not only to further consolidate and apply the knowledge of division, but also a special training in reasoning ability, for the future projections of equations and equations to pave the way. Teaching, we must fully ensure that students observe and think about the time, pay attention to the process of student thinking. Should pay attention to guide students to analyze the problem-solving ideas, find the solution to the problem cut-off, from one yuan to two yuan, seize the relationship between the two equations, the initial perception of elimination method, substitution method. We strive to learn from the students, learning process, learning methods, through the combination of figures, graphics, abstract construction