-1-目录第一章代数初步知识.........................................................................................-1-1.代数式.........................................................................................................-1-2.列代数式的几个注意事项：........................................................................-1-3.几个重要的代数式：（m、n表示整数）...................................................-1-第二章有理数.....................................................................................................-2-2.1知识框架............................................................................................-2-2.2有理数和无理数..................................................................................-2-2.2.1有理数.......................................................................................-2-2.2.2无理数.......................................................................................-2-2.2.3补充...........................................................................................-3-2.3数轴......................................................................................................-3-2.3.2比较大小（补充）...................................................................-3-2.4绝对值和相反数..................................................................................-4-2.4.1绝对值.......................................................................................-4-2.4.2相反数.........................................................................................-4-2.5有理数运算..........................................................................................-4-2.5.1有理数加减法法则：...............................................................-4-2.5.2有理数乘除法法则：...............................................................-5-2.5.3乘方...........................................................................................-5-第三章代数式.....................................................................................................-7-3.1知识框架..............................................................................................-7-3.2知识梳理..............................................................................................-7-3.2.1代数式.......................................................................................-7-3.2.2同类项.....................................................................................-7-第四章一元一次方程.......................................................................................-9-4.1知识框架..............................................................................................-9-4.2知识梳理..............................................................................................-9-4.2.1知识点解释...............................................................................-9-4.2.2一元一次方程运用...................................................................-9-第五章走进图形世界.....................................................................................-11-5.1知识框架............................................................................................-11-5.2知识梳理............................................................................................-11-5.2.1投影..........
