小熊请客导学案一.课前三分钟。3x5=2x4=5x2=5x7=9x2=8x5=3x4=8x3=9x5=4x5=3x6=5x5=二.探究新知。1.数一数,填一填。1串有几个红果?2串呢?........
2.你能编出4的乘法口诀吗?()个4乘法算式乘法口诀1个41x4=44x1=4一四得四2个42x4=84x2=8二四得八3个43x4=124x312三四十二__________________________________________________________________________________________________________________________________________________________________________________________________________________________________
3.观察4的乘法口诀有何特点?