论文部分内容阅读
在中学化学的国际符号中,除了大量的元素符号外,还有很多计算符号。元素符号是由瑞典科学家贝齐里乌斯首先整理成功的,到本世纪初,以元素符号为中心的各种化学式的意义和使用得到了规范化处理,成为一套科学、通用的化学语言。学习和使用化学语言的任务,历来受到广大师生的重视并取得了良好的成绩,但在计量语言的学习和使用上,却远未受到应有的注意,存在的问题也比较多。在计量符号规范化的势头迅猛发展,世界计量语言即将统一的今天,在化学中使用国际计量符号的频率还要提高,掌握常用计量符号已成为当务之急。本文试图就中学化学课本中的符号问题(以计量符号为主)谈谈自己的认识和体会。
In the international symbol of middle school chemistry, in addition to a large number of elemental symbols, there are many calculation symbols. The symbol of the element was first compiled by Beziris, a Swedish scientist. By the beginning of this century, the meanings and uses of various chemical formulas centered on the symbol of the element have been standardized to become a set of scientific and universal chemical language. The task of learning and using chemical language has always been valued by teachers and students and has achieved good results. However, in the study and use of measurement language, it is far from receiving due attention and there are many problems. With the rapid development of the standardization of measurement symbols and the imminent unification of metrological languages in the world, the frequency of using international metrology symbols in chemistry is also increasing. It is an urgent task to master commonly used metrology symbols. This article attempts to talk about his own understanding and experience of the symbolic problems in the middle school chemistry textbooks (mainly based on metrology symbols).