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教学内容:人教版《义务教育课程标准实验教科书·数学》五年级下册第五单元“三角形的面积”。教材简析:“三角形的面积”是“多边形的面积”这一单元中第二节内容,是在认识了三角形的特征及掌握长方形、正方形、平行四
Teaching content: PEP “compulsory education curriculum standard experimental textbook mathematics” fifth grade volume fifth unit “area of the triangle ”. Textbook analysis: “area of the triangle ” is “the area of the polygon ” The second section of the unit, is to recognize the characteristics of the triangle and grasp the rectangular, square, parallel to the four