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【教学内容】北师大新世纪版小学数学五年级上册49—50页。【教材分析】本节课是北师大教材五年级上册第四单元“多边形的面积”中的第一课时,教学内容是“比较图形的面积”。教材以方格纸作为载体,呈现各种形状的平面图形,并提出“观察并比较下面各图形的面积大小有什么关系,剪下附页2拼一拼”的要求。教材这样安排的目的是通过学生观察、操作和比较等活动,不仅让学生懂得比较图形面积大小的方法的多样化,同时也
【Teaching Content】 Beijing Normal University New Century Primary School Maths Fifth Grade Volume 49-50 pages. 【Textbook Analysis】 This lesson is the fourth unit of the fifth grade on the Beijing Normal University textbook “polygon area ” in the first lesson, the teaching content is “area of comparative graphics ”. Textbook with graph paper as a carrier, showing a variety of shapes of the plane graphics, and put forward “observe and compare the size of the following graphics, what is the relationship, cut the page 2 spell ” requirements. The purpose of this arrangement of teaching materials is not only to enable students to understand the diversity of the method of comparing the size of the graphic area through activities such as student observation, operation and comparison,