认识单式折线统计图.pptx

1、状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,同学们，你们喜欢科技吗？你们都知道哪些科技比赛？,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,根据收集到的从2006年到2012年参赛队伍的数据，制成如下统计表。,根据这一统计表，你能获得哪些数学信息？,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,为了更好

2、地进行分析，我们可以用学过的( )统计图表示。,条形,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,单式折线统计图,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,426,394,468,454,489,499,519,这种统计图叫做折线统计图,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,426,394,468,454,489,499,519,（1）这两幅统计图有什么相同点？,条形统计图和折线统计图都能表示数量

3、的多少。,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,426,394,468,454,489,499,519,（2）参赛的队伍上升得最快是哪一年到哪一年？ 下降得最快呢？,上升最快是20072008年，下降最快是20062007年。,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,426,394,468,454,489,499,519,（3）你发现折线统计图有什么特点？,特点：1.反映数量的多少； 2.清楚的反映数据的增减变化情况。,状元成才路,状元成才路,状元成才路,状

4、元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,426,394,468,454,489,499,519,（4）中国青少年机器人大赛参赛队伍的数量有什么变化？ 你能预测一下2013年参赛的队伍数量可能会是多少？ 你是怎么想的？,参赛队伍整体呈上升趋势,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,1.妈妈记录了陈东0-10岁的身高，根据下表中的数据绘制折线统计图。,做一做,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,74,85,93,101,108,

5、115,120,130,135,141,陈东0-10岁身高情况统计图,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,从画好的折线图中找一找，填一填。,1.陈东从（ ）岁到（ ）岁时长得最快，长了（ ） 厘米。,2.陈东身高120厘米时是（ ）岁。,3.陈东10岁时身高是（ ）厘米， 请你猜想一下陈东12岁时的身高是多少？,0,1,24,7,141,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,2.看图填空。,甲城2015年的月平均气温变化情况统计图,状元成才路,状元成才路

6、,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,（1）这一年中，甲城（ ）月的月平均气温最低，（ ）月的月平均气温最高。 （2）（ ）月和（ ）月这两个月间的月平均气温上升得最快。,5,6,7、8,1,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,（3）（ ）月和（ ）月这两个月间的月平均气温下降得最快。 （4）这幅图描述的是：这一年中，甲城的月平均气温呈( )的变化趋势。,10,11,由低升高再降低,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,（5）7月份的月平均气温比4月份的高（ ）。,15,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,（6）根据统计图提供的信息，你觉得甲城可能是下面的哪座城市？（ ） A.哈尔滨 B.武汉C.广州,B,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,426,394,468,454,489,499,519,课堂小结,折线统计图不但可以表示数量的多少，而且能够清楚地表示出数量的增减变化情况。,画折线统计图的步骤： 1.画出横纵轴，确定间距； 2.