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练习课是数学的基本课型,怎样上好练习课,历来是数学教师的困惑和短板。前不久,在四川南充聆听了特级教师张冬梅上的《两位数乘两位数的练习与思考》一课,让我大开眼界,如饮琼浆,茅塞顿开。现将其精彩片断赏析于后,与同行分享。【片断一】师:同学们,今天的课堂张老师想从画画开始。(随后画出下图)师:同学们,如果我画的是轴对称图形的一半,谁来帮我画另一半。
Practice class is the basic mathematics lesson, how good practice class, mathematics teachers has always been the confusion and shortcomings. Not long ago, in Nanchong, Sichuan Province, he listened to a lecture titled “Double-digit Double-digit Practice and Thinking” on the special teacher Zhang Dong-mei, which gave me an eye-opener. Now its wonderful pieces Appreciation in the future, to share with their peers. [Piece a] division: students, today’s class teacher Zhang want to start from the painting. (Then draw the following figure) Teacher: Students, if I draw half the axisymmetric graphics, who will help me to draw the other half.