整风运动中,我们深深的体会到生物教学有严重的三脱现象(脱离政治,脱离生产,脱离实际),产生三脱的原因,主要是教学中的保守思想作怪。以前我们总认为教材即法律,不能增加;也不能删减,有时发现有好的资料,也不敢组织到教材中去。一来怕影响教材科学性、系统性,二来怕增加学生负担。其实动植物教材是教育部编的,不一定每个实例都适合本地情况,同时由于农牧业大跃进,往往突破教材中的内容, In the rectification movement, we deeply understand that there is a serious phenomenon of three offs in biological teaching (from politics, from production and from reality) and the reason for the emergence of three offs, mainly due to the conservative thinking in teaching. In the past we always considered the teaching materials that the law can not increase; can not be cut, sometimes found to have good information, are not organized into teaching materials. A fear of affecting the textbook science, systematic, and secondly to increase the burden on students. In fact, animals and plants textbooks are compiled by the Ministry of Education, not necessarily for each instance of local conditions, but also due to the Great Leap Forward in agriculture and animal husbandry, often breaking the textbook content,