“一看就会,一听就懂,一放就忘,一多就乱,一做就错”,这是很多同学特别是高一的同学对化学学习的看法．这其中有很多原因,但最本质的应是学习方法和学科特点的原因．化学所学内容小到微观世界(分子、原子、离子、质子、中子、电子等),看不见摸不 “When you look at it, you will understand it, you will forget it when you release it, chaos as soon as you do it, and you will do it wrong.” This is the view of many students, especially freshmen, on chemistry learning. There are many reasons for this, but the most essential one should be the reason for learning methods and characteristics of the discipline. The contents of chemistry are as small as the microscopic world (molecules, atoms, ions, protons, neutrons, electrons, etc.).