著名数学家华罗庚曾说过:“在人的一生中,在校学习是短暂的,自学是经常的;在学习中,总是没有老师的时候多,有老师的时候少;在工作中,书上能翻到,能直接用的东西比较少,而通过自己的思考,自己想出来创造出来的东西比较多,”可见,培养自学能力,能独立地获取知识非常重要。而对于中学生来说,获取知识的途径有两种:一是靠教师传授,二是靠自学。学生在校的时间相对于他整个人生来说,是短暂的,而知识的海洋是无穷无尽的,仅靠在校的 Hua Luogeng, a famous mathematician, once said: “In a person’s life, studying at school is short-term and self-study is frequent. In learning, there are always no teachers and fewer teachers. At work, The book can be turned over, can be used directly less, and through their own thinking, they came up with something more to create, ”visible, develop self-learning ability, independent access to knowledge is very important. For middle school students, there are two ways to acquire knowledge: one is taught by teachers, and the other is self-study. The student’s time in school is short compared to his whole life, and the ocean of knowledge is endless and only at school