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【教学内容】义务教育课程标准实验教科书《数学》(人教版)三年级下册第九单元“数学广角”。【片段一】解读主题图,建立等量关系表象(在整体浏览“水果摊”主题图后,出示主题图中的第一张天平图)师:观察这幅图,你们发现了什么?生1:1个西瓜是4千克。(教师板书:1个西瓜=4千克)
【Content】 compulsory education curriculum standard experimental textbook “Mathematics” (PEP) third grade volume ninth unit “Mathematics Wide Angle ”. [Fragment one] Interpretation of the theme map, the establishment of the equivalent relationship between appearances (in the overall view Health 1: 1 watermelon is 4 kg. (Teacher’s Book: 1 watermelon = 4 kg)