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新课标提倡物理实验贴近生活、选材简单易取、直观性强,在教学中,我结合自己实验教学的情况,改进了几个实验,介绍如下:1.浮力产生原因的实验①将矿泉水瓶用小刀在距离瓶底1/3处截开,呈漏斗状放在截下的瓶底里,将乒乓球置于此漏斗中。②先用一木棒将乒乓球
The new curriculum advocate physical experiment is close to life, the material is easy to choose, intuitive and strong, in teaching, I combined with their own experimental teaching, improved several experiments, described as follows: 1 buoyancy causes experiment ① the mineral water bottle With a knife in the bottom of the bottle 1/3 cut off, was funnel-shaped cut in the bottom of the bottle, the pingpong placed in this funnel. ② first with a stick will be table tennis