在中学化学教学大纲上指示,中学化学教学的基本任务:“第一就是使学生获得一定的系统的和巩固的化学基本知识……。”我觉得这样的要求是非常恰当的。系统的鞏固的化学基本知识,就不是零碎的、片面的、散乱的一堆化学材料,而是系统的、科学的、自然界物质变化的规律;不是无用的、累赘的、死板的知识,而是学了化学之後,能获得合乎高等学校要求的化学基础,或是直接为国家的生产建设服务。因而在正确的进行系统的、鞏固的基本化学知识的讲授 Indicated in the chemistry syllabus of secondary school, the basic task of chemistry teaching in middle school: “The first is to enable students to acquire certain systematic and consolidated basic knowledge of chemistry ...” I think such a request is very appropriate. The consolidation of the chemical basic knowledge of the system is not a piecemeal, one-sided, messy pile of chemical materials, but a systematic, scientific, and material change of nature; it is not useless, cumbersome, rigid knowledge After learning chemistry, it can obtain the chemical basis that meets the requirements of colleges and universities, or directly serve for the country’s production and construction. Therefore, the correct systematic and consolidated teaching of basic chemical knowledge