如何创设有效的数学教学情境,一直是很多数学教师的追求。但我们看到的是,很多教师的做法往往游离在数学这一门学科的本质特征外,企图用多媒体营造出亦真亦幻的声色。这实际上并没能抓住数学教学的本质,囿于外在的形而失之内在的魂。那么,如何才能在情境的创设中体现数学的思辨色彩呢?本文拟以小学高年级数学的例子来谈谈个人的看法。 How to create an effective mathematical teaching situation has always been the pursuit of many mathematics teachers. What we see, however, is that many teachers tend to move away from the essential characteristics of mathematics in an attempt to create a true and false tone through multimedia. This did not actually catch the essence of mathematics teaching, but due to the outward appearance of the lost inner soul. So, how to reflect the speculative nature of mathematics in the creation of context? This article intends to talk about personal opinions with the example of mathematics in the upper grades of primary school.