从高考题参考答案看高中电表读数的标准

• 作 者: 李常明
• 机 构: 湖南省凤凰县高级中学,
• 出 处: 湖南中学物理
• 发表日期: 2011年07期
• 关键词: 高考题 准确度等级

一、提出电表读数问题关于高中指针式电表的读数小数位数的保留问题,绝大多数教师说人教版新教材没有统一的标准。为何这么严肃的问题官方不仅不给予回应,而且几乎每年都出现同样的问题呢?笔者结合近几年高考实验试题参考答案反思电表读数的教学,发现电表读数的标准就在参考答案之中。

First, the proposed meter reading problem On the high school pointer meter readings to retain the number of decimal places, the vast majority of teachers said the PEP new textbooks do not have a uniform standard. Why not so serious official not only do not give a response, but almost every year the same problem? The author combined with the recent years college entrance examination test questions reference answer meter reading teaching and found that the meter reading standards in the reference answer.