铁是用途最广泛的金属,在工农业生产中有着举足轻重的地位;铁及其化合物的知识又是元素化合物知识中的核心内容,是高考中的热点和难点;考查时经常以工农业生产为背景,融合氧化还原知识和守恒等规律,考试题型灵活多样.怎样提高元素化合物的复习效率,笔者谈一点粗浅的看法和大家分享.1.导入实验情境,激发复习兴趣教师在课堂上做了一个演示实验:在一种浅绿色的溶液中 Iron is the most widely used metal, which plays a decisive role in industrial and agricultural production. The knowledge of iron and its compounds is also the core content in the knowledge of elemental compounds, which is the hot and difficult point in college entrance examination. Background, fusion of redox knowledge and conservation and other laws, the test variety flexible .How to improve the efficiency of elemental compound review, the author talk about a little superficial view and share with you .1 import experimental situations, stimulate interest in reviewing teachers in the classroom A demonstration experiment: in a light green solution