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在讲授《特殊的平行四边形--菱形》这一课时,多数教师都会按照教材所提供的“做一做”进行剪纸操作(如图所示):这个方法在课堂的实际操作中普遍会产生以下两个问题
When teaching “Special Parallelogram - Rhombus”, most teachers will do the paper-cutting operation according to the instruction provided by the textbook (as shown in the picture): This method is generally used in classroom practice Produce the following two questions