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目前,在中学生学习化学的过程中,普遍对于化学计算感觉困难.然而,熟练地掌握基本化学计算又是中学化学教学学所必需完成的教学任务.为什么学生的化学计算能力差?我以为其基本原因有三:基本概念不清;掌握有关计算的一般规律欠缺;平时缺乏计算训练,主要缺乏对综合题的计算训练,在中学课本中有关综合题的数量也嫌少.
At present, it is generally difficult for chemistry calculation to learn chemistry in middle school students, however, proficiently mastering basic chemistry calculation is a necessary teaching task for chemistry teaching in middle school.Why do students think that chemistry calculation ability is poor? There are three reasons: the basic concepts are unclear; master the general laws of the lack of calculation; usually lack of computational training, the main lack of comprehensive training in the calculation of the problem, the number of comprehensive questions in secondary school textbooks are too few.