物质的量是一个物理量的名称,摩尔是物质的量的单位,这一概念对于学生来讲很陌生也很抽象。因此,分散难点,多引入生活中常见的例子,引发学习兴趣,增强学习的积极性和主动性在教学中显得优为重要。让学生准确把握物质的量、摩尔、阿伏加德罗常数的概念,深入理解概念的内涵和外延是教学的难点和关键。 The amount of matter is the name of a physical quantity, and Moore is the unit of quantity of matter, a concept that is strange and abstract to students. Therefore, to disperse the difficulties and introduce more common examples in daily life, it is very important to initiate the interest in learning and enhance the enthusiasm and initiative of learning in teaching. Allow students to accurately grasp the amount of material, Moore, Avogadro constant concept, in-depth understanding of the connotation and extension of the concept of teaching is the difficulty and key.