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如何使数学课堂走向开放与生成?我结合自己教学“四舍五入法”的实践,谈谈自己的一管之见。案例:(一)开放课堂。我在教学完“四舍五入法”之后,设计了如下开放题:老师去商场购物,带的钱四舍五入之后是100元,请大家猜想一下老师带了多少钱?“(多少钱四舍五入后是100元”这一开放性问题迅速激
How to make the maths class open to the students and how to make them? In my own teaching, the practice of “rounding the law”, I talk about my opinion. Case: (a) open the classroom. After I finished teaching “Rounding”, I designed the following open question: The teacher went to the shopping mall and brought the money after rounding it to be 100 yuan. Please guess how much the teacher brought? “(How much is rounded off 100 yuan ”This open question quickly stimulated