兴趣是最好的老师。而兴趣又是在需要的基础上才产生的,是在平时的生活和学习中逐渐培养起来的。教育家苏霍姆林斯基说过:“只有学生被丰富多彩的智力因素和需要的氛围所包围。当他们对待知识不是持消极的,而是持积极的态度情况下,学习、认知活动才能给学生带来深深的快感、满足、激动和情绪上的振奋。”新的《数学课程标准》明确指出 interest is the best teacher. And interest is generated on the basis of need, is gradually cultivated in the usual life and learning. Educator Sukhomlinski said: “Only students are surrounded by a variety of intellectual elements and the atmosphere of need. When they treat knowledge is not negative, but a positive attitude, learning, cognitive Activities to bring students deep pleasure, satisfaction, excitement and emotional upheaval. ”The new“ mathematics curriculum standards ”clearly pointed out