在化学教学中常常存在一些我们司空见惯的问题,答案“一目了然”。教师们认为它们没有可研究的价值,更不会用实验去求证自己推断。可实际上他们的推断往往与实验的结果不一致。教学中的这类问题,笔者统统把它们称之为想当然的问题。“想当然”一般指的是凭主观推断,认为事情大概是或应该是这样。从化学角度看,“想当然”的问题从理论上讲都合乎化 There are often some common problems in chemistry teaching, the answer is “at a glance.” Teachers think they have no value to be researched, nor do they experiment with proofing their inferences. In fact, their inferences are often inconsistent with the experimental results. These problems in teaching, I all call them granted problems. “Of course ” generally refers to subjective inference, that things are probably or should be so. From a chemical point of view, the question of “taking for granted” is theoretically perfect