课本的例习题是教材编写者精选的,有丰富的内涵和广阔的外延,即其对理解、巩固知识、培养能力和解题策略形成都具有一定典型作用和潜在的价值。所以教师在备课时要认真钻研.下面谈谈笔者的一些做法,希望能抛砖引玉.1.对课本的例题要补充思维过程,拓展学生的思 Exercises of textbooks are selected by textbook writers, with rich connotation and broad extension, that is, they have a typical role and potential value in understanding, consolidating knowledge, cultivating ability and problem-solving strategies. So teachers should be careful when preparing lessons. Here to talk about some of the author's practices, hoping to initiate .1. The textbook examples to supplement the thinking process, to expand the thinking of students