教科版小学科学四年级下册教案及反思全册.docVIP

　 备　课　本 班　　别：四年级 科　　目：科　学 任课老师：　 　　至　　　学年度　第二学期 目　　录 电和我们的生活 ················································1 点亮我的小灯泡·················································3 让更多的灯泡亮起来 ············································4 电路出故障了···················································5 导体与绝缘体 ··················································6 我来做个小开关·················································8 里面是怎样连接的 ··············································9 我们选择了什么················································10 油菜花开了····················································12 各种各样的花··················································13 花、果实和种子················································14 豌豆夹里的豌豆················································15 把种子散播到远处··············································16 萌发的种子 ···················································18 动物的卵 ·····················································19 一天的食物····················································21 我们的身体从食物中得到什么 ···································22 吃什么和还吃什么··············································24 生的食物和熟的食物············································25 面包发霉了····················································26 减慢食物变质的速度 ···········································27 食物包装上的信息··············································28 各种各样的岩石 ···············································29 进一步观察岩石 ···············································30 岩石的组成 ···················································32 怎样观察和描述矿物 ···········································34 岩石会改变模样吗 ·············································36 岩石、矿物和我们··············································37 第　　　周　星期 年　　月　　日 课　　题 ?电和我们的生活 教学目标 1、经历调查家用电器的活动过程，并且科学文件夹记录； 2、经历一次收集并且处理数据的科学研究过程； 3、讨论他们想知道的关于电的知识； 4、明确一些安全用电的常识，并在日常生活中逐步养成安全用电的习惯。 重　　点 知道安全用电的常识。 难　　点 关于电的知识。 教　　具 方　　法 教学过程 一、引入 课前我们做了一个调查记录，调查了我们自己家里的用电器，这节课我们就来做个统计，交流我们的调查结果。 二、探究过程 1、调查家中的电器。 （1）小组内互相交流调查记录，同学之间相互说说。 （2）个人统计：生活中常用的用电器有哪些？大的电器有哪些？小的用电器