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有关《钠的性质及其用途》的教学内容,多少年来无论中学化学教材几度推陈出新,但作为活泼金属元素的典型代表,其在教材和教学中的地位和价值却几乎不变。也许许多老师对这种传统内容烂熟于心,教学模式也似乎成了千佛一面。如何在传统中寻求突破,更好地体现新课程所承载的任务?我在执教人教版化学必修1第三章第一节《钠的性质及其用途》时作了一些尝试摸索,努力以一个崭新的视角和方法展开教学活动。
As for the teaching contents of “the nature of sodium and its use”, for many years no matter how many times the chemistry teaching materials of middle school have been innovated, as a typical representative of active metal elements, its position and value in teaching materials and teaching hardly change. Perhaps many teachers are familiar with this traditional content, teaching mode seems to have become a thousand Buddhas. How to seek a breakthrough in the tradition and to better reflect the tasks carried by the new curriculum? I made some attempts and trials when teaching the PEP 1, Chapter III, Section 1, “The Nature and Uses of Sodium” A new perspective and method of teaching activities.