预习是一种学习活动,但对于小学数学这一学科和小学生这一学习主体来说则有利有弊。小学数学有很多定义、公式等基础知识,前后联系密切,环环相扣,预习有利于学生在课前了解这些知识,分散难点,加深理解;小学生喜欢接触新鲜事物,模仿能力强,通过预习能有所得,基于此,提倡预习还是可取的。但是小学生思维不严密,推理能力较差,在喜新的同时厌旧,注意力集中的时间短; Preview is a learning activity, but it has advantages and disadvantages for primary and secondary school subjects. Primary mathematics has many definitions, formulas and other basic knowledge, before and after close contact, interlocking, pre-learning is conducive to students to understand these knowledge before class, distract difficult and deepen understanding; pupils like to touch new things, strong imitation skills, Proceeds, based on this, to promote preview is desirable. However, primary school students do not think well and have poor reasoning ability. They are tired of being old while they are new and have a short time of concentration.