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巧借题目变式,助力新题衍生

2019-09-12冼海文

数学教学通讯·初中版 2019年8期
关键词:海文新题關键

冼海文

[摘  要] 变式教学是不断改变知识的呈现形式,使其本质属性保持不变,而非本质属性不断变化,引导学生从不同的角度和不同的方法去思考问题,从本质上理解和掌握知识.

[關键词] 变式;问题

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