游标卡尺是比较精密的测量工具,随着时代的进步,它的结构也有了较大的改进,但其读数原理却万变不离其宗,与老式的结构相同。为使学生在未来的机械加工或机械修理工作中能熟练地使用各种游标卡尺,在物理实验教学中本人重点加强了卡尺读数原理和卡片读数练习的教学。一讲练结合,讲彻讲透读数原理在用实物介绍游标卡尺的结构及其用途后,为使学生形 Vernier caliper is more sophisticated measurement tools, with the progress of the times, its structure has also been greatly improved, but its reading principle is unchanged, and the same structure of the old. In order to enable students to proficiently use various vernier calipers in the future machining or mechanical repair work, I emphasized on the teaching of caliper reading principle and card reading practice in physics experiment teaching. A combination of speaking, speaking about the principle of thorough reading through the introduction of the physical structure of the vernier caliper and its use, in order to make students shaped