现行的小学品德教材内容包罗万象,涵盖了思想品德、历史、地理、社会等多门学科,但课本呈现给教师的却只有几幅简单的活动图,文字的支撑很少。因此,要想上好一堂高效的品德课,就需要教师花大量的精力根据课本资源的价值取向,去合理开发充实课本资源。此时,如果我们能借助信息量 The content of the current primary school moral teaching materials covers a wide range of subjects, covering many disciplines such as morality, history, geography and society. However, there are only a few simple activity diagrams presented to teachers, with little support for words. Therefore, in order to have a good and effective moral lesson, teachers need to spend a lot of energy according to the value orientation of the textbook resources to rationally develop and enrich the textbook resources. At this point, if we can use the amount of information