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逆向思维是数学中的一种重要思维方法,在教学中有着广泛的应用.可通过概念法则逆用,改变角度训练学生思维,转换对象灵活变换中培养学生的能力.
Reverse thinking is an important thinking method in mathematics, which has a wide range of applications in teaching.It can be used to train students ’thinking by reversing and changing angles of concepts, and to transform students’ abilities in flexible transformation.