初中物理变阻器教案
下面是小编整理的初中物理变阻器教案,本文共18篇,欢迎大家阅读分享借鉴,希望对大家有所帮助。 知识目标 1.知道滑动的构造和作用,能改变电阻的原理. 2.知道滑动所标规格的含义,会识别滑动规格,会把滑动连入电路使之改变电路中电流. 3.知道电阻箱用途,会读出电阻箱示数. 4.知道和变阻箱电阻变化的区别和特点. 能力目标 1.培养学生的创新思维. 2.培养学生依据物理事实分析,归纳问题的能力. 3.
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