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一、简易方程简易方程这一单元包括:用字母表示数、简易方程、列方程解应用题三部分.本单元的教学是在学生已经学过求未知数X的基础上进行的.教学的重点是使学生理解和掌握解方程的方法.列方程是难点,而找数量之间的等量关系又是列方程的关键.本单元的教学要求是:1.使学生初步了解用字母表示数的意义和作用,能够用字母表示常见的数量关系和学过的运算定律,计算公式,并初步会用数目代替式子中的字母,求式子的值.2.通过实例帮助学生理解方程、方程的解、解方程等概念,学会简易方程的解法.3.使学生初步学会列方程,并用方程解一些比较简易的应用题.
First, the simple equation simple equation This unit includes: the number of letters, simple equations, column equations solution to the problem of three parts.The teaching of this unit is based on the students have learned unknowns on the basis of X. Teaching is the focus of So that students understand and master the method of solving equations.Column equation is a difficult point, and looking for the relationship between the amount of the same is the key column equation.This unit teaching requirements are: 1. To enable students to understand the meaning of the initial number of letters And the role of the letter can be used to describe the relationship between the number of common and learned arithmetic, formula, and the initial number will be used instead of letters in the formula, find the value of the formula .2 examples to help students understand the equation, the equation Solution, solving equations and other concepts, learn simple equation solution .3. Enable students to learn the column equation, and use equations to solve some simple questions.