数学是教人聪明的学问,学数学最重要的是体会数学中蕴含的思想方法,并有意识地在生活中应用这些方法解决身边的问题.在现实生活中,由于条件和环境的不同,有些测量可以直接实现,有些测量是无法直接实现的,如大树的高度、古塔的高度等.当我们遇到无法直接实现的测量时,就需要用所 Mathematics is the wisdom of teaching people. The most important thing in learning mathematics is to understand the ideas and methods contained in mathematics, and to consciously apply these methods in life to solve the problems around them. In real life, due to the different conditions and the environment, some measurements It can be implemented directly. Some measurements cannot be directly implemented, such as the height of a big tree, the height of an ancient pagoda, etc. When we encounter a measurement that cannot be directly implemented, we need to use it.