化归思想是一种重要的数学思想方法。在数学教学中,教师可以通过计算让学生体验化归思想,可以在操作中让学生探索化归思想,可以在解题中让学生感悟化归思想,从而提高学生解决问题的能力。 To return to thinking is an important mathematical method. In maths teaching, teachers can calculate and let the students experience the change of thought, which can let students explore the thought of returning to normalization in operation so as to make students feel sentiment and improve their ability to solve problems.