化学计算题是设法将化学过程中的具体反应过程通过数学形式得以呈现,考察的是学生的逻辑思维能力,在某种程度上它是一种较高的抽象思维能力.在某种程度上来说,很多学生之所以化学学科不能学好,是因为原本生动的化学知识变为枯燥的数学运算,对缺乏较高的抽象思维能力的学生来说,这无疑是一种心理上的巨大折磨,本已点燃的化学学习兴趣也最终演变为应付式学习,和对化学学习的排斥.思考将抽象的数学运算转变为简单的形象思维,便抽象为具体、变枯燥为生动 The problem of stoichiometry is to try to present the concrete reaction process in the chemical process through the mathematical form, and to examine the students’ logical thinking ability, to a certain extent, it is a kind of high abstract thinking ability. The reason why many students can not learn chemistry is that the original vivid chemical knowledge turns into a boring math operation. This is undoubtedly a huge psychological torment to students who lack a high ability of abstract thinking. Ignited interest in chemistry learning also eventually evolves into coping style learning and exclusion of chemistry learning.Considerating abstract mathematical operations into simple image thinking, they are abstracted as concrete, and boring as vivid