目 录
第二十一章 二次根式
21.1二次根式............................................................................................................1
21.2二次根式的乘除(第1课时).................................................................................3
21.2二次根式的乘除(第2课时).................................................................................5
21.2二次根式的加减(第1课时).................................................................................7
21.2二次根式的加减(第2课时).................................................................................9
小结........................................................................................................................11
第二十二章 一元二次方程
22.1 一元二次方程...................................................................................................13
22.2.1配方法(第1课时) .............................................................................................15
22.2.1配方法(第2课时) .............................................................................................17
22.2.1公式法............................................................................................................19
22.2.3因式分解法......................................................................................................21
22.2.4 一元二次方程的根与系数关系..............................................................................23
22.3 实际问题与一元二次方程(第1课时)..................................................................25
22.3 实际问题与一元二次方程(第2课时)..................................................................27
小结........................................................................................................................29
第二十三章 旋转
23.1 图形的旋转(1)...................................................................................................33
23.1 图形的旋转(2)...................................................................................................36
23.1 图形的旋转(3)...................................................................................................39
23.2.1中心对称(1)......................................................................................................42
23.2.1中心对称(2)......................................................................................................45
23.2.1中心对称(3)......................................................................................................48
22.2 中心对称图形,关于原点对称的点的坐标...............................................................51
23.3 课题学习 图案设计.............................................................................................55
小结........................................................................................................................57