铁在日常生活中有广泛的应用,对铁及其化合物的性质、应用的了解,有助于教会学生正确使用生活中常见的含铁物质,认识化学与社会、生产、科技的重要联系.在此背景下,本设计以补血剂的保存创设问题情景,结合实验展开探究,充分发挥学生的学习主动性,帮助学生主动建构基础知识,增强学生学习化学的兴趣,获得学习化学的方法,提高科学探究能力.一、学习目标 Iron is widely used in daily life. Understanding the nature and application of iron and its compounds helps teach students to correctly use the iron-bearing substances commonly found in life and recognize the important links between chemistry and society as well as their production and technology. In this context, the design of the preservation of blood to create the problem scenarios, combined with the experiment to explore, give full play to students ’learning initiative to help students take the initiative to build the basics, enhance students’ interest in learning chemistry, access to learning chemistry, improve science Exploring ability First, learning objectives