小学数学北师大四年级平均数.pptx

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,执教人：张玉梅,单 位：虞城县实验小学,小明套中,7,个，小红套中,5,个，谁的成绩好？,6,5,4,2,7,6,2,1,第一组,男,生套圈成绩统计图,小明,小佳,小雨,第一组,女,生套圈成绩统计图,冰冰,笑笑,小静,阳阳,0,1,2,3,4,5,6,7,8,9,10,0,1,2,3,4,5,6,7,8,9,10,亮亮,5,4,3,4,3,3,2,第二组,男,生套圈成绩统计图,第二组,女,生套圈成绩统计图,小博,李欢,洋洋,小芳,小丽,佳佳,小静,0,1,2,3,4,5,6,7,8,9,10,0,1,2,3,4,5,6,7,8,9,10,7,5,3,8,3,3,2,第三组,男,生套圈成绩统计图,第三组,女,生套圈成绩统计图,小旭,小涛,王波,萌萌,圆圆,小珊,0,1,2,3,4,5,6,7,8,9,10,0,1,2,3,4,5,6,7,8,9,10,莉莉,第三组,男,生套圈成绩统计图,第三组,女,生套圈成绩统计图,小旭,小涛,王波,萌萌,圆圆,小珊,莉莉,0,1,2,3,4,5,6,7,8,9,10,0,1,2,3,4,5,6,7,8,9,10,5,4,（2+4+6+8+3+7）6=5（个）,第三组男,生套圈成绩统计图,第三组女,生套圈成绩统计图,小旭,小涛,王波,萌萌,圆圆,小珊,莉莉,0,1,2,3,4,5,6,7,8,9,10,0,1,2,3,4,5,6,7,8,9,10,5,4,第三组,男生平均每人投中多少个,？,（,7+5+3,）,3,=153,=5(,个,),第三组,女生平均每人投中多,少个？,（,8+3+2+3,）,4,=164,=4,（个）,5,个,4,个,答,:,男生平均每人比女生平均每人套圈成绩好,。,第三组男,生套圈成绩统计图,第三组女,生套圈成绩统计图,小旭,小涛,王波,萌萌,圆圆,小珊,莉莉,0,1,2,3,4,5,6,7,8,9,10,0,1,2,3,4,5,6,7,8,9,10,5,4,张老师一分钟投篮成绩统计图,4+6+5+,1,=,16（个）,16,4=,4（个）,4+6+5+,5,=2,0（个）,2,0,4=,5（个）,4,6,5,5,4,4,6,5,1,张老师一分钟投篮成绩统计图,4,6,5,1,4,6,5,5,4,6,5,9,李强所在的快乐篮球队，队员的平均身高是,160,厘米。,李强的身高可能是155厘米吗？,226,厘米,178,厘米,中国男子篮球队平均身高是,200,厘米,(2,米,),冬冬,我身高,140,厘米，下水游泳不会有危险。,全课总结,畅谈收获,今年三月份河南省平均每天气温是,15,摄氏度。,王老师家,2015,年平均每月用电,85,千瓦时。,请各位领导老师提出宝贵意见。谢谢！,