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,1,,,2,的乘法口诀(,2,),西南师大版二年级上册,一,创设情境,复习导入,看口诀,说算式。,一三得三,二三得六,二九十八,一七得七,二八十六,二六十二,一五得五,二二得四,二五一十,创设情境,复习导入,看算式,说口诀。,2,5,10,2,2,4,2,6,12,4,2,8,2,9,18,2,8,16,2,3,6,7,2,14,摆小棒(每次都,1,根,1,根地摆),编口诀。,探究体验,经历过程,3,11 = 1,一一得一,12 = 2,一二得二,13 = 3,一三得三,14 = 4,一四得四,15 = 5,一五得五,16 = 6,一六得六,17 = 7,一七得七,18 = 8,一八得八,19 = 9,一九得九,1,乘几,积就是几。,课堂活动,1.,对口令。,一一,得一,一二,得二,一七,得七,一九,得九,一四,得四,一六,得六,一三,得三,2.,说算式,对口诀。,18 = 8,一八得八,91 = 9,一九得九,15 = 5,一五得五,41 = 4,一四得四,达标检测,乘法算式:,_,乘法口诀:,_,12 = 2,21 = 2,一二得二,乘法算式:,_,乘法口诀:,_,14 = 4,41 = 4,一四得四,乘法算式:,_,乘法口诀:,_,18 = 8,81 = 8,一八得八,乘法算式:,_,乘法口诀:,_,19 = 9,91 = 9,一九得九,通过这节课的学习你有哪些收获?,课堂小结,乘法口诀,乘法算式,一一得一,11 = 1,一二得二,12 = 2,或,21 = 2,一三得三,13 = 3,或,31 = 3,一四得四,14 = 4,或,41 = 4,一五得五,15 = 5,或,51 = 5,一六得六,16 = 6,或,61 = 6,一七得七,17 = 7,或,71 = 7,一八得八,18 = 8,或,81 = 8,一九得九,19 = 9,或,91 = 9,
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