1　欲穷千里目 ,更上一层楼———理解的层次性和渐进性正如人们对文学作品的理解一样 ,数学理解也有很强的层次性 ,对同一个问题 ,由于认识的观点与方法不同 ,人们往往有多种层次的不同理解 .一般地 ,理解得越深 ,认识问题的观点就越高 ,反之亦然 .我们需要的是 ,层层深入 ,永 1 The desire to go through a thousand miles, and to go one step further – The level and gradualness of understanding Just as people’s understanding of literary works, mathematics comprehension is also very hierarchical. For the same problem, due to the understanding of the viewpoints and methods Differently, people often have different levels of understanding. In general, the deeper the understanding, the higher the point of understanding the problem, and vice versa. What we need is to go deeper and deeper.