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在香港担任指导教师的日子里,笔者参与了五所小学数学高阶思维班的教学研讨。时逢香港五年级数学高阶思维班“用分数加法解难教学”研讨,提到“解难教学”这个词,大家一定比较陌生,他们称应用数学解决问题教学为“解难教学”。这次的数学问题是:一块板报,其中1/2用于常识科宣传,1/4用于中文课宣传,1/8用于外语科宣传,1/16用于数学科宣传,这样一共用去这块板报的几分之几?这是一道典型的需渗透数形结合思想教学的数学应用
In the days of mentor in Hong Kong, I participated in the teaching of five high school thinking classes in primary schools. Every fifth Hong Kong senior high school thinking class “teaching with fractional addition ”, referred to “difficult teaching ” the word, we must be unfamiliar, they said that the application of mathematics to solve problems teaching ". This time the math problems are: a board newspaper, of which 1/2 for common sense propaganda, 1/4 for Chinese class publicity, 1/8 for foreign language publicity, 1/16 for math publicity, such a shared To what fraction of this board newspaper? This is a typical mathematics application that needs to penetrate a number form with thought teaching