苏教版数学五年级上册《小数乘法(一)》PPT课件.ppt

,小数乘法（一）,苏教版五年级数学上册,教学目标,1.知识目标：在生活情境中，让大家自主探索小数乘整数的计算方法。2.能力目标：能正确地计算及描述小数乘整数的过程。3.情感目标：感受小数乘法在生活中的应用。,买4块 要多少钱？,0.2元,0.2元,0.2元,0.2元,0 . 8,0 . 2,+,0.2+0.2+0.2+0.2=,0 . 2,0 . 2,0.8（元）,0 . 2,0.24=?,0.2元=2角,24=8（角）,8角=0.8元,0.24=0.8（元）,0 . 8,0.24 =,4,0.8（元）,0 . 2,买3把 要多少钱？,2.35元,2.35元,2.35元,7.05,2.35,+,2.35+2.35+2.35 =,2.35,7.05（元）,2.35,7.05,2.353 =,3,7.05（元）,2.35,涂一涂，填一填。,0.0110=（ ）,0.1,涂一涂，填一填。,0.0150=（ ）,0.5,涂一涂，填一填。,0.01100=（ ）,1,加油哦！,0.123,0.242,0.43,0.33,0.5,0.1,做一做,6,0.6,24,2.4,根据14823=3404，直接写出下面各题的积。 14.823= 1482.3= 1480.23= 1.4823=,本课小结,理解小数乘以整数的意义，掌握小数乘以整数的计算法则，正确地进行计算。,