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一、本章目的要求 1.明确量与计量的有关概念和量的分类,弄清量与计量、量与量数概念的区别,以及一个量的量数与所用的计量单位的关系。 2.了解计量制度的发展概况与国际单位制的构成体系,掌握常用的法定的计量单位及其相邻两个单位间的进率。 3.明确名数及其有关概念,能正确地进行名数的化聚和名数的四则运算。二、本章主要知识及其联系本章主要内容可以概括为以下三个部分: 1.关于量与计量及其有关概念教材对量以两种不同的标准分类得到的两种分类结果,反映了量与不连续量、连续量,量与标量、向量概念间的联系。量按照能否直接用计数的方法确定其大小为标准分类如下:
1. Purpose of this Chapter 1. Define the classification of relevant concepts and quantities of quantities and measures, clarify the distinction between quantity and measurement, quantity and quantity concepts, and the relationship between a quantity quantity and the measurement unit used. 2. To understand the development of measurement system overview and the composition of the international system of units to master the commonly used legal units of measurement and the rate of entry between two adjacent units. 3. Clear name and its related concepts, the number of polygons can correctly name and the number of four operations. Two, the main knowledge of this chapter and its link The main contents of this chapter can be summarized as the following three parts: 1. The two classification results on the amount of teaching materials and measurement concepts and two different criteria, reflecting the relationship between quantity and Discontinuous quantities, continuous quantities, quantities and scalar, the concept of the link between the vector. In accordance with the amount of direct counting method to determine the size of the standard classification is as follows: