教师通过设置“在众多复杂的商品信息中,如何快速地找到所需要的信息”这一情境,调动学生的自主学习热情。学生在完成单条件筛选、多条件筛选、文本筛选和数据筛选任务的过程中,掌握了筛选的步骤和方法。所学的方法用于解决实际问题达到了“学以致用”的目的。各小组交流讨论,有利于培养学生的合作和互相学习意识。 The teacher mobilizes the enthusiasm of autonomous learning of students by setting the situation of how to quickly find the needed information among the many complex commodity information. The students have mastered the screening steps and methods during the tasks of single-item screening, multi-condition screening, text selection and data selection. The method we have learned has been used to solve practical problems and has achieved the purpose of “learning to apply”. The exchange and discussion of various groups help to cultivate students’ cooperation and mutual learning awareness.