【教学内容】苏教版义务教育课程标准实验教科书数学四年级(下册)第94～96页。【教材简析】本节课学生初次学习折线统计图。在这之前,学生初步学习过简单统计表、象形统计图和条形统计图等,而折线统计图虽然与条形统计图在构成元素上有很多类似的地方,但它的绘制方法和表现出来的特征与条形统计图还有着明显区别。因此,教 【Teaching content】 Jiangsu Education Edition compulsory education curriculum standard textbook fourth grade mathematics (second volume) 94 ~ 96 pages. [Textbook] students in this class for the first time learning the line chart. Prior to this, students initially learned simple statistics tables, hieroglyphs and bar charts, etc. Although the line chart has many similarities with the bar chart in its constituent elements, its drawing method and performance The characteristics and the bar chart there is a clear distinction. So, teach