有一位老师在网上提出一个判断题:表面积相等的长方体,体积也相等()。这个问题的答案并不难得到。很多老师都知道应判错,可怎样向学生解释呢?近年来,笔者一直研究小学数学教师的数学素养及其提升途径。看到这个问题后,笔者觉得可以利用它来研究小学数学教师的学科素养。于是,笔者提出 One teacher put forward a judgment question online: cuboids with equal surface area and equal volume (). The answer to this question is not difficult to get. Many teachers know that they should be adjudged to be wrong. How can they be explained to the students? In recent years, I have been studying the maths of primary school math teachers and their ways of ascension. After seeing this question, I think it can be used to study the academic quality of primary school mathematics teachers. So, I proposed