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【教学内容】北师大教材四年级下册第88页。【教学过程】一、简单回顾引入主题1.知识回顾。师:同学们,昨天我们学习了笑笑根据蒜苗生长情况制作的统计图——条形统计图(课件出示,表略)。请大家说说图中的相关信息(略)。2.引出折线统计图。师:其实,关于蒜苗生长的情况我们还可以用另外的一种统计图表来表示,那就是折线
【Teaching content】 Beijing Normal University textbook fourth grade volume 88th page. Teaching process A brief review of the introduction of the theme 1 knowledge review. Teacher: Classmates, Yesterday, we studied the laughter and laughter according to the growth of garlic seedlings produced by the statistical charts - bar charts (courseware show, the table omitted). Please tell us about the relevant information (omitted). 2. Lead the line chart. Teacher: In fact, the growth of garlic on the situation we can also use another kind of statistical charts that, that is broken line