化学计算是从“量”的方面来反映物质的变化规律,它不仅能巩固、加深中学生对化学概念和原理的理解,而且是学生智能培养的一种重要手段。随着化学教学质量的不断提高,对化学计算的要求也将愈来愈高。因此,重视学生计算能力的培养,把学生从漫无边际的“题海”中解放出来,是当前中学教学的当务之急。下面是笔者在教学中培养学生化学计算能力方面的几点做法。 Chemical calculation reflects the law of material change from the aspect of “quantity”. It can not only consolidate and deepen the understanding of middle school students on the concepts and principles of chemistry, but also serve as an important means of intelligent cultivation of students. With the continuous improvement of chemistry teaching, the requirements for chemical calculation will also be higher and higher. Therefore, paying attention to the cultivation of students’ computing abilities and liberating the students from the boundless “problem sea” are the most urgent tasks in current middle school teaching. The following is the author in teaching students in chemical calculation ability of several practices.