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读了《中小学数学》的“课案分析”等栏目的一些文章后,心中有一种冲动,总想把遇到的令自己回味良久的一个教学细节写出来与同行交流。那是一节四年级的“平行四边形和梯形”的研究课,在老师引导学生探究平行四边形的特征这一教学
After reading some articles in the column entitled “Case Study” of “Mathematics for Primary and Secondary Schools”, there was an impulse in my heart that I always wanted to write down a teaching encounter I had encountered so long ago to communicate with my colleagues. It was a fourth-grade “parallelogram and trapezoid” research class where the teacher guided the student to explore the teaching of parallelogram features