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“请比较3.1cm和3.10cm两个长度测量值所表示意义的不同之处。”这是一道很简单的关于刻度尺测量的问题,也是中学生刚刚接触物理课程时首先要学习的知识。它涉及到了刻度尺测量中的“精确度”、“有效数字”、“测量时所使用的刻度尺的最小刻度”以及“测量者的估计值”等多个基本知识点,在教学活动中恰当地处理这些基本知识点,从而可渗透对学生“科学精神”的培养。 1 “科学精神”的含义首先,究竟什么是“科学精神”?或“科学精神”包括哪几个方面?早在1941年,我国著名科学家竺可桢就发表了《科学之方法与精神》一文。他从近代
“Please compare the meaning of the meanings of the two length measurement values of 3.1cm and 3.10cm.” This is a very simple question about the scale measurement, and it is also the first thing a middle school student needs to learn when they are in contact with a physics course. It involves a number of basics such as “accuracy”, “effective number”, “minimum scale of scale used for measurement”, and “estimator’s estimate” in the scale measurement. Knowledge points, properly handle these basic knowledge points in teaching activities, so as to penetrate the cultivation of students’ “scientific spirit”. 1 The meaning of the “scientific spirit” First of all, what exactly are the “scientific spirit” or the “scientific spirit”? As early as 1941, China’s famous scientist Yan Kezhen published a “scientific method.” And Spirit. He is from modern times