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一、点滴比较就是对某一知识点进行单一的比较,或字、或概念、或规律、或作图、或实验方法、或解题思路、或物理意义等等.这种比较由于简单明了,学生容易掌握.如相互作用的两个力和相互平衡的两个力学生往往混淆,在教学中抓住它们的作用点和施力物体稍比较,便透彻见底.二、综合比较就是把几个知识点放在一起,进行多角度的比较.这种比较,综合性强,有助于学生全面掌握知识的内涵与外延.如全方位比较重力和浮力,比较施力物:前者是地球,后者是液体;比较方向:前者是竖直向下,后者是竖直向上;比较力的产生:前者是由于地球的吸引而使物体
One-by-one comparison is a single comparison of a certain knowledge point, or words, or concepts, or laws, or mapping, or experimental methods, or problem-solving ideas, or physical meaning, etc. This comparison is simple and straightforward. The students are easy to master. If the two forces interacting with each other and the two students who balance each other are often confused, grasping the point of their use in the teaching is slightly compared with the force-applying object, and they will have a thorough understanding. Second, the comprehensive comparison is to put a few The knowledge points are put together and compared from multiple angles. This comparison, which is comprehensive, helps students to fully grasp the connotation and denotation of knowledge. If all aspects of gravity and buoyancy are compared, it means that the former is the Earth. The latter is a liquid; the direction of comparison: the former is vertically downward and the latter is vertically upward; the generation of comparison force: the former is caused by the attraction of the earth