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一、教学内容1 .本部分内容包括的知识点及它们在整体知识结构中的地位及前后联系包括的知识点有 :( 1 )螺旋测微器的使用和读数 ;( 2 )根据欧姆定律和电阻定律测定金属的电阻率 .本节介绍了高中物理中重要的基本测量仪器——螺旋测微器的使用和读数 ,它不仅是高考、会考的热点
I. Teaching Content 1. The knowledge points included in this part of the content and their position in the overall knowledge structure and before and after contact include knowledge points: (1) use and reading of spiral micrometer; (2) according to Ohm’s law and Resistance law determines the resistivity of metals. This section describes the use and readings of spiral micrometer, an important basic measuring instrument in high school physics. It is not only a hot spot for college entrance examinations, but also a hot topic for examinations.