2022年2018济南版生物七年级上册1.2.3《多细胞生物体的结构层次》教案 .pdf

名师精编优秀教案观察生物结构1.2.3 多细胞生物体的结构层次一、教学目标(1)描述绿色开花植物体与动物体的结构层次；(2)能说出器官和系统的概念;(3)形成生物体是一个高度有序的统一整体的生物学观点。二、课时安排1 课时三、教学重点描述 绿色开花植物体和动物体的结构层次四、教学难点器官和系统等概念的归纳总结。五、教学过程（一）导入新课导语：先请同学们猜个谜语，谁猜对了有奖励：好像苹果惹人爱，好像柿子没有盖，又酸又甜营养好，能当水果能做菜。教师：猜对的同学奖励西红柿一颗，然后展示出一株新鲜的根、茎、叶、花、果实俱全的西红柿植物体。名师精编优秀教案问题导入：我们知道构成生物体结构。（二）讲授新课探究一：植物体的结构层次阅读教材 35 36 页文字资料，思考：1、植物体的结构层次？探究二：动物体的结构层次阅读教材 36 37 页文字资料，思考：1、动物体的结构层次？（三）知识运用1植物体的结构层次比动物体的结构层次少了_。2绿豆汤是夏季消暑解渴的佳品，从生物体结构层次上看，其原料绿豆属于植物体的（）A细胞B组织C器官D系统（四）归纳小结一、植物体的结构层次细胞 组织 器官 植物体二、动物体的结构层次细胞 组织 器官 系统 个体文档编码:CU6J1G6C3G1 HG4R4B1F4A5 ZD10L1I3C1N9文档编码:CU6J1G6C3G1 HG4R4B1F4A5 ZD10L1I3C1N9文档编码:CU6J1G6C3G1 HG4R4B1F4A5 ZD10L1I3C1N9文档编码:CU6J1G6C3G1 HG4R4B1F4A5 ZD10L1I3C1N9文档编码:CU6J1G6C3G1 HG4R4B1F4A5 ZD10L1I3C1N9文档编码:CU6J1G6C3G1 HG4R4B1F4A5 ZD10L1I3C1N9文档编码:CU6J1G6C3G1 HG4R4B1F4A5 ZD10L1I3C1N9文档编码:CU6J1G6C3G1 HG4R4B1F4A5 ZD10L1I3C1N9文档编码:CU6J1G6C3G1 HG4R4B1F4A5 ZD10L1I3C1N9文档编码:CU6J1G6C3G1 HG4R4B1F4A5 ZD10L1I3C1N9文档编码:CU6J1G6C3G1 HG4R4B1F4A5 ZD10L1I3C1N9文档编码:CU6J1G6C3G1 HG4R4B1F4A5 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