发现法是一种行之有效的教学方法.发现法本身强调学习者(学生)的主体作用,尊重学习者自己的思维选择和探索结果,它看重的是学生的思维过程和方式.在课堂教学中,发现法运用得当会使我们的数学课堂变得更加活跃和有思维的深度.因此,在教学中就需要教师提供线索铺设台阶,正确引导学生主动参与探 Discovery method is an effective teaching method. The discovery method itself emphasizes the subjective role of the learner (student), respects the learner’s own thinking choice and exploration results, and it values ​​the student’s thinking process and methods. In the middle, the proper use of the discovery method will make our mathematics classroom more active and have a deeper thinking. Therefore, teachers need to provide clues and lay down the steps in the teaching and guide students to actively participate in the exploration.