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1、初一数学教案:乘法公式|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 1 页,共 3 页第 2 页初一数学教案:乘法公式【学习目标】1、学习型,并进行公式推导;2、进一步稳固完全平方公式和平方差公式,并会用乘法公式化简某些代数式;教师评价家长签字【重点难点】乘法公式的有关推广计算.【课前预习】1、计算:(1)(2)2、-2ab等于().A.B.C.D.3、以下多项式的乘法中可用平方差公式计算的是().A.B.C.D.4、以下各式计算结果与相同的是().A.B.C.D.5、假设要使是完全平方式,那么m的值为().A.B.C.D.【例题教学】例 1
2、计算:(1)|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 2 页,共 3 页文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V
3、6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4
4、HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V
5、6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4
6、HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V
7、6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4
8、HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3第 3 页问题:你能用推导 的结果吗?结论:例 2、计算:(1)(2)例 3 假设 求(1)(2)的值.【课堂检测】计算以下各式:姓名:1.;【课后稳固】1.计算:20212 2.计算:3.计算:4.计算:5.求代数式的值,其中 .*
9、6 思考:你能计算、吗?教师评价家长签字课后反思|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 3 页,共 3 页文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF
10、8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D
11、3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF
12、8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D
13、3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF
14、8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3文档编码:CH3Z2Z5C8Q4 HF8E3O5B4S8 ZM2N1P9V6D3