数学可以理解为是一种为人们用以解决实际问题的工具,是一种方法;数学又能训练人的思维,养成一定的思维模式,使人更好地、创造性地解决问题。实际问题是丰富多样的,是开放的,所以数学也应是丰富多样的、开放的。然而,在目前的小学数学教育中,学生所接触的绝大部分题目条件完备? Mathematics can be understood as a tool for people to solve practical problems, is a method; mathematics can train people's thinking, develop a certain mode of thinking, so that people better and creative solution to the problem. The practical problems are diverse and open, so mathematics should also be rich and varied and open. However, in the current primary school mathematics education, most of the students are exposed to the conditions of the conditions are complete?