一、单元教材解读1.教学内容信息窗1(运输大麦芽):比例的意义、比例的基本性质、解比例。信息窗2(生产情况记录):正比例的意义、正比例图像。信息窗3(啤酒生产计划):反比例的意义。信息窗4(装运啤酒):用比例的知识解决简单实际问题。2.学情分析学习本单元之前,学生在三年级已经学习了工作总量、工作时间、工作 First, the unit textbook interpretation 1 teaching content information window 1 (transport barley malt): the proportion of the meaning of the basic nature of the ratio, the proportion of solutions. Information Window 2 (Production Record): Proportional, proportional image. Information Window 3 (Beer Production Plan): Inverse Meaning. Information Window 4 (Shipment of Beer): Use simple knowledge to solve simple, practical problems. 2. Analysis of learning Before learning this module, students in the third grade have learned the total amount of work, working hours, work