一题多解,为了充分调动学生思维的积极性,提高他们综合运用已学知识解答数学问题的技能技巧;为了锻炼学生思维的灵活性,促进他们长知识、长智慧;为了开阔学生的思路,引导学生灵活地掌握知识的纵横联系,培养和发挥学生的创造性。激发学生学习数学兴趣,形成较强的求知欲,从而提高学生的数学素养。 In order to fully mobilize the enthusiasm of students ’thinking and improve their skills and skills of comprehensively using learned knowledge to answer math problems, in order to exercise the flexibility of student thinking and promote their long-term knowledge and long-term wisdom, in order to broaden students’ thinking and guide Students have the flexibility to master the vertical and horizontal links of knowledge, cultivate and develop students’ creativity. Stimulate students to learn mathematics interest, forming a strong curiosity, thereby enhancing students’ mathematical literacy.