逆向思维就是反常规习惯性顺向思维的束缚,采用正难则反的思维方式去探索解决问题的关键,如把减法运算转化为加法运算,为了合项反而先去拆项,化除为乘,化开方为乘方,用反函数确定原函数等。这些数学逆向思维的运用和培养很有助于提高学生的思维品质和解题能力。本文重点介绍运用逆向思维巧解数学难题的方法。 Reverse thinking is the fetter of inertial thinking of abnormal rules, the use of positive thinking is the way to explore the key to solve the problem, such as the subtraction into an addition operation, but for the combined items but to disassemble, , To open square for power, using the inverse function to determine the original function. The use of these mathematical reverse thinking and training is very helpful to improve students’ thinking quality and problem-solving skills. This article focuses on the use of reverse thinking skillfully solve mathematical problems.