我校于今年实行九年一贯制的新学制,今年暑期招进来的高一学生编入八年级,这是一个过渡的班级,阿基米德定律及其应用在初中曾学过一些,但学得不深不透,不能结合实际应用。把浮力跟浮沉也混淆起来。这次就着重把浮力的概念和阿基米德定律在工农业生产上的应用讲清楚。至于阿基米德定律的来源,受有浮力的原因等,根据大纲就不进行讲介。时 This year, our school has implemented a nine-year new school system. The first-year students recruited this summer are included in the eighth grade. This is a transitional class. Archimedes’s law and its applications have been learned in junior high school, but learning Not deep enough, can not be combined with practical applications. It also confuses buoyancy and sinking. This time we will focus on the concept of buoyancy and the application of Archimedes’ law in industrial and agricultural production. As for the source of Archimedes’s law, there are reasons for buoyancy and so on. According to the outline, they will not be introduced. Time