有关阿伏加德罗常数计算的题型是江苏省“大”“小”高考考查的重点与热点。但阿伏加德罗常数概念的教学一直困扰着广大教师,影响着学生对阿伏加德罗常数概念的学习,以及物质的量概念的深入理解,进而影响到学生对有关阿伏加德罗常数计算的掌握。那么教师的困扰究竟来自哪里?难题又如何解决呢?下面就将笔者对这两个问题的初步探究介绍如下,旨在抛砖引玉。一、对教材阿伏加德罗常数定义的初步认识 Questions about the calculation of Avogadro constant Jiangsu Province “big ” “small ” college entrance examination test focus and hot spots. However, the teaching of the concept of Avogadro constant has plagued the vast majority of teachers, affecting students ’study of the concept of Avogadro’s constant and the in-depth understanding of the concept of the quantity of matter, thus affecting the students’ Constant calculation of the mastery. So what exactly is the teacher’s troubles? How can we solve the problem? The following is a brief introduction of the author on these two issues. First, the initial understanding of the definition of the text material Avogadro constant