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背景:为参加本校举行的数学研讨会,我在准备《异分母分数加减法》这堂数学课的试教过程中,曾经让学生的一次很好的生成失之交臂,由于当时的疏忽,致使在后续的教学中出现了较大的障碍。课堂回放一、引入揭题1)学校操场面积占学校总面积的。2)学校建筑面积占学校总面积的。3)学校草地面积占学校总面积的。4)学校其它用地面积占学校总面积的。1、师:根据上面的信息请你还能向老师介绍那些新的信息?
Background: In order to participate in the Mathematics Symposium held by our school, I had missed a good student’s attempt to prepare for the math course “Addition and subtraction of different denominators”. As a result of negligence at that time, Follow-up teaching appeared in the larger obstacles. Classroom playback First, the introduction of Jieti 1) School playground area of the total area of the school. 2) School construction area of the total area of the school. 3) The school grass area accounts for the total area of the school. 4) Other school land area of the total area of the school. 1, division: According to the above information, you can also introduce to the teacher those new information?