有人认为,体积问题最简单,只要记住几个公式就行了。其实能直接套公式解的题毕竟很少,“记住公式”仅是解题的一个必要而不充分的条件。因此,学生在解题中,总是想方设法先探求公式中有关量的数值,这往往导致解答冗长。况且,把思维长期控制在怎样套公式这个框子里,则有碍于智力的发展和能力的提高。 Some people think that the volume problem is the simplest, just remember a few formulas. In fact, there are few problems that can directly solve equations. “Remembering formulas” is only a necessary and insufficient condition for problem solving. Therefore, in solving a problem, students always try to find the value of the formula in the formula first, which often leads to a lengthy solution. Moreover, the long-term control of thinking in such a box of formulas hinders the development of intelligence and the improvement of abilities.