化学新教材采用让学生从实践体验入手认识常见的酸(盐酸和硫酸),从个性到共性,从化学性质上概括出酸的组成、概念,这样处理,一方面从亲身体验切入,增加了化学的亲和力,另一方面弱化了严密的学科概念,更重要的是通过认识酸的知识形成过程,增强了学生归纳知识的能力,并从酸类、碱类物质具有共性这一事实寻找其本质原因．我们要通过科学合理地处理教 The new chemistry textbook allows students to understand the common acids (hydrochloric acid and sulfuric acid) from the practical experience, and summarizes the composition and concept of acid from the chemical nature from the individual character to the treatment. On the one hand, it increases the chemistry from experience. Affinity, on the other hand, weakens the rigorous disciplinary concepts, and more importantly, it enhances the ability of students to sum up knowledge by understanding the formation process of acid knowledge, and finds out the essential reasons for the fact that acids and alkalis have commonalities. . We must deal with teaching through science and rational