第一单元简易方程1.用字母表示数A 明确用字母表示数的意义,懂得用字母表示常见的数量关系的方法。知道“a~2”的含义和它的读法。B 会用字母表示数、常见的数量关系和学过的运算定律、面积公式等;会用语言叙述式子。2.简易方程A 初步理解方程的意义,弄清“方程的解” Simple equation of the first unit 1. The number of letters A A clear indication of the significance of the number of letters, know how to use letters to represent the relationship between the number of common ways. Know the meaning of “a ~ 2” and its reading method. B will use the number of alphanumeric characters, the relationship between the number of common and learned arithmetic laws, area formulas, etc .; will use language to describe the formula. 2. Simple Equation A Preliminary understanding of the significance of the equation, to clarify the “solution of equations”