自从党的“教育为无产阶級政治服务,教育与生产劳动相結合”教育方針提出后,在普通中学生物教学中,理论联系实际问题就显得更加突出了。我們都懂得,知識是生产斗争和阶級斗争經驗的总結。而經驗又有两种:一种是直接經驗;另一种是間接經驗。从总的来说,一切知識都是由实践来的,也就是说都是由直接經驗得来的。所以,我們必須重視实践,也就是說我們必须重视实际,这是提高生物教学質量的关鍵问 Since the education policy of “education for proletarian politics, combination of education and productive labor” has been put forward by the Party, the connection between theory and practice in ordinary middle school biology teaching becomes even more conspicuous. We all know that knowledge is a summary of the experience of production and class struggle. And experience has two kinds: one is direct experience; the other is indirect experience. In general, all knowledge comes from practice, that is, from direct experience. Therefore, we must attach importance to practice, that is to say, we must attach importance to reality. This is the key to improving the quality of biological teaching.