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思维就是人们对客观事物的判断与推理,它是人的理性认识的过程,根据思维过程的指向性,可将思维分为正向思维(常规思维)和逆向思维。逆向思维反映了思维过程的间断性、突变性和多向性,它是摆脱思维定式,突破旧的思维框架,产生新思维,发现新思维的一种重要方式。因此,在教学中,教师应该重视学生逆向思维能力的培养。数学教学的主要任务是讲授数学知识和经验,但更重要的是
Thinking is people’s judgment and reasoning of objective things. It is the process of human’s rational cognition. According to the directionality of thinking process, thinking can be divided into positive thinking (conventional thinking) and negative thinking. Reverse thinking reflects the discontinuity, mutation and multidirection of thinking process. It is an important way to get rid of the thinking style, break through the old thinking framework, generate new thinking and discover new thinking. Therefore, in teaching, teachers should attach importance to the cultivation of students’ ability to reverse thinking. The main task of mathematics teaching is to teach mathematical knowledge and experience, but more importantly