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教学内容:北师大版五年级数学上册。教材分析:“组合图形的面积”是学生学习了长方形、正方形、平行四边形、三角形和梯形等基本图形的面积计算后学习的,为了解决日常生活中的实际问题。学习组合图形的面积计算可以巩固已经学过的基本图形,也能将所学的知识进行整合,注重将解决问题的策略渗透其中,提高学生的综合能力。教材在内容呈现上突出了两个部分,一是感受计算组合图形面积的必要性,二
Teaching content: Beijing Normal University version of the fifth grade mathematics books. Textbook analysis: “area of the combined graphics ” is learned by students learning the area calculation of basic graphics such as rectangles, squares, parallelograms, triangles and trapezoids, in order to solve the practical problems in daily life. Learning the area of combination graphics can consolidate the basic graphics have been learned, but also can integrate the knowledge learned, focusing on problem-solving strategies to penetrate them and improve the overall ability of students. The textbook presents two parts highlighting the necessity of computing the combined graphics area,